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Long known as a party drug, ketamine now used for depression, but concerns remain

A decades-old anesthetic made notorious as a party drug in the 1980s is resurfacing as a potential “game-changing” treatment for severe depression, patients and psychiatrists say, but they remain wary about potential long-term problems.

The Food and Drug Administration earlier this month OKd use of Spravato for patients with depression who have not benefited from other currently available medications. Spravato, the brand name given to the drug esketamine, is a molecule derived from ketamine — known as Special K on the club scene.

Ketamine has been shown in some studies to be useful for treating a wide variety of neurological disorders including depression. Regular, longtime use of it isn’t well understood, psychiatrists say, but the need for a new drug to treat depression is so great that the FDA put Spravato on a fast-track course for approval.

The drug likely will be commercially available in a few weeks, and patients already are requesting it. Restrictions around its use, though — the drug must be administered in a doctor’s office by providers who are certified with the company making it — mean it may be months before it’s widely available, and longer than that before insurers start paying for it.

“I don’t think we know at this point how effective it’s going to be,” said Dr. Craig Nelson, a psychiatrist at the UCSF Depression Center. “There have been a number of studies of ketamine, sometimes showing effects in people who were resistant to other drugs. If we can treat a different group of people, it would be a great advantage.”

Ketamine was developed in the 1960s as a surgical anesthetic for people and animals. The drug can cause hallucinations and a feeling of “dissociation” or unreality, and in the 1980s it took off as a party drug among people seeking those effects. It remained a common anesthetic, though, and in the early 2000s doctors began to notice a connection between ketamine and relief from symptoms of depression and other mood disorders.

Spravato is delivered by nasal spray, which patients give themselves in a doctor’s office. Patients must be monitored while they get the drug and for two hours after to make sure they don’t suffer immediate complications. At the start, patients will get the nasal spray twice a week for four weeks, then taper to regular boosters every few weeks for an indefinite period of time.

Studies of ketamine — and specifically of Spravato — have produced encouraging but inconsistent results. Psychiatrists say that, like most other antidepressants, the drug probably won’t help everyone with difficult-to-treat depression. But there likely will be a subset of patients who get substantial benefits, and that alone may make it an incredible new tool.

About 16 million Americans experience depression every year, and roughly a quarter of them get no benefit from antidepressants on the market. Thought scientists haven’t determined exactly how ketamine works on the brains of people with depression or other mood disorders, it appears to take a different path of attack than any drug already available. That means that people who don’t respond to other antidepressants may find this one works for them.

But a concern among some psychiatrists is that studies have suggested that ketamine may affect the same receptors in the brain that respond to opioids. Ketamine and its derivations may then put patients at risk of addiction — but research so far hasn’t explored that kind of long-term effect.

“There might be some potential problems if you used it too aggressively,” said Dr. Alan Schatzberg, director of the Stanford Mood Disorders Center, who led the research that identified a connection with opioid receptors. “The issue is not so much the short-term use, it’s the repetitive use, and the use over time, as to whether there are going to be untoward consequences.

“It would be hard for me to recommend the use of this drug for chronically depressed people without knowing what the endgame is here,” he added.

Dr. Carolyn Rodriguez, a Stanford psychiatrist who was part of the studies of ketamine and opioid receptors, said she shares Schatzberg’s concerns. But she’s been studying the use of ketamine to treat obsessive-compulsive disorder, and for some patients the results have been so remarkable that the benefits may exceed the risks.

“When I gave ketamine to my first patient, I nearly fell off my chair. Somebody said it was like a vacation from their OCD, and I was just, ‘Wow, this is really possible,’” Rodriguez said. “I want to make sure patients have their eyes wide open. I hope (the FDA approval) spurs more research, so we can really inform consumers.”

Though the new nasal spray is the first formal FDA approval of a ketamine-derived drug, psychiatrists have been using the generic anesthetic for years to study its effect on depression and other mood disorders.

In recent years, clinics have opened around the country offering intravenous infusions of ketamine to people with hard-to-treat depression and other problems. These treatments aren’t specifically FDA-approved but are allowed as off-label use of ketamine. The clinics have faced skepticism from some traditional psychiatrists, but there’s a growing ream of anecdotal evidence that the ketamine IVs work — for some people.

Aptos resident Mary, who suffers from depression and other mood disorders and asked that her last name not be used to protect her privacy, said the already available antidepressants weren’t keeping her symptoms at bay, and she frequently felt “one step away from the abyss.” When she first heard about ketamine, from a support group for people with depression and other mood disorders, she was hesitant.

“I kind of hemmed and hawed, because I’d heard that K was a street drug,” Mary said. “But then I said, ‘What do I have to lose?’ So I went and did it.”

The results were quick: Within four days, “the cloud had lifted,” she said. More than a year later, she is still feeling good with regular infusions every three or four weeks. During the ketamine infusion, Mary said she’ll feel the dissociation, which she described as feeling like she’s viewing the world around her as though it were a movie and not her own life.

She said she’s pleased the FDA approved Spravato, though she hasn’t decided whether she’ll switch from the IV ketamine to the nasal spray. She hopes that the FDA approval will give some validation to ketamine and encourage others to try it.

Mary gets her infusions at Palo Alto Mind Body, where Dr. M Rameen Ghorieshi started offering ketamine two years ago. He’s certified with the maker of Spravato — Janssen Pharmaceuticals, a branch of Johnson and Johnson — to provide the drug, though he doesn’t know when he’ll actually start giving the nasal spray to patients.

Ghorieshi said that although he’s been offering IV ketamine for more than two years, he shares his colleagues’ wariness of the long-term effects of regular use of the drug. He hopes FDA approval will encourage further research.

“At this point we’ve done 1,000 infusions. The outcomes have exceeded my own expectations,” Ghorieshi said. “But anecdotes are not clinical trials. I approach this very cautiously. What I don’t want is 20 or 30 years from now to look back and say, ‘What did we do?’”



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Call NOVA Health Recovery at 703-844-0184 for a free consultation for a Ketamine infusion. No referral needed. We offer intranasal Ketamine follow up therapy as well. Alexandria, Va 22306.

Call NOVA Health Recovery at 703-844-0184 for a free consultation for a Ketamine infusion. No referral needed. We offer intranasal Ketamine follow up therapy as well. Alexandria, Va 22306.

From Popular Anesthetic to Antidepressant, Ketamine Isn’t the Drug You Think It Is

An hour before we spoke, Darragh O’Carroll, an emergency room physician from Hawaii, had just given an elderly patient a sedating shot of ketamine. The man had pneumonia and was acting confused and fidgety, making him hard to treat.

“Not only it was a pain control for him when I was putting needles into his neck, but it also kept him still,” O’Carroll says. “And with very minimal risk of lowering his blood pressure.”

Ketamine’s use as an anesthetic — and not as a party drug — is widespread, though not commonly known. In fact, the World Health Organizationestimates ketamine is the most widely used anesthetic in the world and keeps it on their list of essential medicines, a category of drugs that all developed countries should have on hand.

O’Carroll has described ketamine as his “favorite medicine of all time” in an article for Tonic, not only because the anesthetic is incredibly safe and effective, but also because of its versatility. It’s most widely used in surgery, but could also help treat severe asthma, chronic pain, and may even possess anti-tumor properties. In the last two decades, ketamine has also emerged as a potent antidepressant, able to treat symptoms of some mental illnesses in less than 72 hours.

“I think the more research that goes into ketamine, the more uses that we find for it,” O’Carroll says.

From PCP to Painkiller

Ketamine’s story begins with a drug called PCP. Yes, that PCP — phencyclidine or so-called “angel dust,” a drug that when smoked can cause a trance-like state, agitation and out-of-body hallucinations. After it was first synthesized by medicinal chemist Victor Maddox in 1956, the drug was briefly approved as an anesthetic by the FDA for its sedative properties. In tests with a wild rhesus monkey, for example, researchers put their fingers in the previously aggressive animal’s mouth and watched its jaw remain slack.

But while it was safe and effective for pain relief, the side effects of PCP soon became too obvious to ignore.

Some patients under the influence of PCP would feel like they lost their arms or legs or that they were floating in space. It could also cause seizures and delirium. Scientists began seeking a shorter-acting anesthetic without convulsant properties. In 1962, chemistry professor Calvin Stevens discovered a PCP analogue that fit the bill: ketamine.

Ketamine is a potent, sedating painkiller that can cause amnesia and is mostly used in surgery and veterinary medicine. During the Vietnam Invasion, ketamine saw widespread use in the U.S. military because it has several advantages over opioids. First, unlike morphine, ketamine doesn’t suppress blood pressure or breathing. It also doesn’t need to be refrigerated, making it useful in the field or in rural areas that don’t have access to electricity.

Ketamine’s benefits extend beyond use as an anesthetic, though — in some cases it can serve as a balm for the mind as well. A 2008 analysis found that burn victims who were given ketamine were less likely to develop symptoms of post-traumatic stress disorder, even if their injuries were more severe. Those findings have been replicated, such as a 2014 clinical trial of 41 patients, who saw their PTSD symptoms diminish within 24 hours, an effect that lasted for two weeks.

“When somebody gets one of their limbs dramatically blown off or is shot in the face, it’s a very traumatic event,” O’Carroll says. In such a situation, giving ketamine not only provides instant pain relief, it could prevent long-lasting trauma.

Because its chemical structure is so similar to PCP, ketamine can still give lucid hallucinations, such as feeling that your mind has separated from the body — a dissociative state users sometimes call a “K-hole.” One recent study based on users’ written reports even indicated that this kind of experience might be a close analogue to a near-death experience. However, these dissociative states only happen at high doses — the amount of ketamine used to for surgery and to treat depression is typically much lower.

But ketamine’s side effects are less common and easier to manage than PCP. In fact, ketamine is one of the safest drugs used in medicine today and can even be given to young children. For example, ketamine was used to sedatethe boys’ soccer team trapped in a cave in Thailand last year. Putting the kids in a tranquilized state made it easier to rescue them, and ketamine is safer than the opioids or benzodiazepines that are also commonly used as sedatives.  

Ketamine as Antidepressant

But it wasn’t until the 1990s that what could turn out to be ketamine’s most important function was discovered. A team from Yale University School of Medicine was examining the role of glutamate, a common neurotransmitter, in depression, and discovered something remarkable: ketamine could rapidly relieve depression symptoms.

“To our surprise, the patients started saying, they were better in a few hours,” Dennis Charney, one of the researchers, told Bloomberg. This rapid relief was unheard of in psychiatry.

Glutamate is associated with neural plasticity, our brain’s ability to adapt and change at the level of the neuron. Ketamine blocks certain glutamate receptors, but not others, and the end effect could be to promote the growth of new neurons while protecting old ones. This could explain how ketamine can help reset the brain, though the theory hasn’t yet been definitively proven.

The prescription meds currently on the market for depression have some major drawbacks. Drugs like Prozac or Wellbutrin can take a few weeks or months to kick in while worsening symptoms in the short term — not a good combination, especially for someone who is extremely depressed, or even suicidal.

It took around a decade for mainstream science to take notice of these early ketamine-depression studies. But once it did, ketamine clinics began popping up all across North America, offering fast relief for depression, anxiety and other mental illnesses. Patients are given an infusion — an IV drip that lasts about an hour — and many people, but not everyone, have seen rapid relief of their symptoms.

Suddenly, ketamine infusions became trendy, though the science to back up some of the medical claims is still inconclusive, according to STAT. However, ketamine infusions are rarely covered by insurance, although that is changing. A typical session can run $700, with many patients taking six sessions or more. But many of these patients have so-called treatment-resistant depression. They’ve tried other medications or therapies without success and some see ketamine as a last resort.

Steven Mandel, a clinical psychologist and anesthesiologist, has used ketamine on patients since it first came on the market around 50 years ago. In 2014, he began using it for patients with depression and opened Ketamine Clinics of Los Angeles, one of the oldest and largest clinics in the country. They’ve done over 8,000 infusions so far.

“Our success rate is better than 83 percent,” Mandel says. For his clinic, success means a 50 percent improvement of depression symptoms for longer than three months.

Ketamine’s success as an antidepressant couldn’t help but attract the attention of major pharmaceutical companies as well. In 2009, Johnson & Johnson began developing their own version of the drug they called esketamine. Rather than an infusion through a vein, it’s dispensed through a nasal spray. The FDA approved their formulation in early March. It was thefirst drug in 35 years to fight depression using a different approach than traditional drugs.

“Esketamine is a giant step forward,” Mandel says. “It means we’re not going to be demonizing mind-altering substances used for therapeutic purposes. It opens the door to research on LSD, on psilocybin, on MDMA and many other agents that could possibly relieve a great deal of suffering.”

But many clinicians have raised concerns about long-term side effects, such as heart and bladder toxicity. Others have been critical of esketamine, saying there isn’t enough data yet to suggest the drug is safe or effective. Husseini Manji, a neuroscientist who helped develop the drug for Johnson & Johnson at their subsidiary Janssen, has pushed back against these claims.

“When you line up the totality of the studies, it was really an overwhelming amount of data that was all in the same direction,” Manji says in a call. Though just two of the five late-state clinical trials showed significant results, the changes in mood in the three that fell short were “almost identical in magnitude” to the others, Manji says. It was enough for the drug to meet standards for FDA approval.

We can probably expect other ketamine-related drugs to come to market soon. ATAI Life Sciences, a company funding research on the use of magic mushrooms for depression, is developing their own ketamine depression drug. The pharmaceutical company Allergan also developed rapastinel, another ketamine-like drug, though it failed to show any real benefits for patients in later trials. Manji says this is unfortunate for people who could be helped by these kinds of drugs.

“From a patient standpoint, we were hoping it would work,” he says, even though he was not involved in rapastinel’s development. “But sometimes if you really haven’t got the mechanism right and you haven’t really threaded the needle, then sometimes you don’t see these results.”

Drug of Abuse?

Even though ketamine’s medical uses are well-established, most people have only heard of ketamine in the context of a party drug. Because of this bad reputation — and what’s perceived as growing misuse of the drug — several countries, such as China and the UK, have tried to place greater restrictions on ketamine. This would make it harder to study and more expensive in clinical use.

“If it was to ever be rescheduled, places that would be first affected would be you know places that need it most,” O’Carroll says. The WHO has asked at least four times for countries to keep access to ketamine open. “The medical benefits of ketamine far outweigh potential harm from recreational use,” Marie-Paule Kieny, assistant director general for Health Systems and Innovation at WHO, said in 2015.

So far, no countries have put greater restrictions on ketamine, and that’s probably a good thing. Ketamine has a rich history, but its future is still being written.



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‘Special K’ Drug vs Ketamine Therapy: The Differences in Intentions, Use and Application

‘Special K’ Drug vs Ketamine Therapy: The Differences in Intentions, Use and Application

The Differences Between ‘Special K’ and Ketamine Therapy

Some know it as a veterinary tranquilizer, others know it as a party drug. For others still, it might be a life-line, the only hope to get their life back from the throes of crippling depression. We are talking about a drug called ketamine or ‘Special K’.

Ketamine’s many names and uses make it a difficult drug to understand. The scientific research on ketamine is evolving so rapidly that not even medical professionals can’t agree on how it should be used.

This article takes all of the information about ketamine, or ‘Special K’, and breaks it down so that it’s simple, accurate, and concise. If you’re wondering about the many differences between using ketamine as a street drug and using it therapeutically, then you’ve come to the right place.

Special K: Ketamine as a Street Drug

Most people first learn about ketamine when they hear about the street drug called ‘Special K’. Other names for the drug when used recreationally are: Ketalar, Ketaject, Vitamin K, and Super K. While this drug is not as widely used as Marijuana or some other illicit substances, it has a strong hold on certain niche markets, like the clubbing and raving scenes.

Although doctors and veterinarians began using ketamine in the 1960s, it wasn’t introduced into the party scene until much later. The trend actually began in India, in the Goa trance music scene of the 1980s, and made its way to the western world from there. By the 1990s, ketamine was a major force in the psychedelic drug scene throughout Europe and the United States.

Despite small ups and downs since its introduction in the ‘90s, Special K has remained a steadily popular drug among high school and college students. The US’s National Institute on Drug Abuse has found that 1.2 percent of high school seniors report that they’ve used ketamine in the last year. While that’s much lower than some other drugs, it’s still significant given the seriousness of ketamine’s effects and the dangers of its potential side effects.

An overdose of ketamine can lead to death. Even non-lethal doses can cause side effects like chest pain, memory loss, and trouble breathing. Those who use Special K recreationally often become addicted, and eventually lose their jobs, relationships, and lives to the drug.

Ketamine Therapy: How Doctors Are Using Ketamine to Change Lives

“At this point, any new depression treatment that makes it to the finish line is a huge win.” That’s Dr. George Papakostas speaking to Time Magazine about the desperate need that medical providers have for depression medications. He says that whatever drug does make across that finish line is “going to have a major impact.”

That drug may very well be ketamine.

Despite its reputation as a street drug or a horse tranquilizer, multiple scientific studies have found the drug is a very effective remedy for a number of ailments (such as PTSD), but especially depression.

Ketamine, along with drugs like phencyclidine (popularly known as PCP) and dextromethorphan (often called DXM or ‘Robo’), belongs to a class of drugs called dissociative anesthetics. These kinds of drugs tend to give the users a ‘floating’ sensation, as if they’re detached from their bodies and their surroundings.

Special K is a particularly fast acting form of dissociative anesthetic, which is why it works so well as both a party drug and a numbing agent in surgeries. In medical settings, Ketamine is often used as an initial anesthetic before other, more powerful painkillers like morphine can kick in. But it’s not these anesthetic effects that make the ketamine drug so effective as an antidepressant.

In fact, doctors aren’t entirely sure what it is about ketamine that helps people overcome their depression. Many think that it has something to do with starting up the ‘synaptic plasticity’ of the brain. This is the part of the brain that has the ability to grow and change over time, and increased plasticity is a common effect of other antidepressant medication.

However it works, the scientific results are pretty clear: regular, therapeutic doses of ketamine helps eliminate the symptoms of depression.

One study from February of 2018 observed “significant improvement of depressive symptoms” in a double-blind clinical trial of 67 adults with treatment-resistant depression (a type of depression that doesn’t respond to other medications like Prozac). Further, the study found that the improvements in the patients were sustained throughout the entire 9-week period of the study. That’s not just a good finding, it’s a breakthrough for treating a condition that has long eluded medical professionals.

Although ketamine has not yet been approved in a prescription pill or nasal spray form for treating depression, there are treatment centers that can offer completely legal ketamine therapy for depression. One of these centers, based in Los Angles, is called Ketamine Clinics.

At these centers doctors are able to administer ketamine drugs in a controlled and calm setting through intravenous or infusion methods.

Why People Use Ketamine Drugs: Therapy Vs. Thrill Seeking

Although the ketamine drug used in therapy is technically the same as the Special K drug used in wild raves, the motivations and outcomes of the experiences are very different.

Using Special K to Get High:

When people use Special K as a street drug, they are looking for a high. Some might be seeking a thrilling experience at a rave, while others might be trying to escape from a life that they find overwhelming. Many end up dangerously addicted to the drug after repeated use.

Almost immediately after the drug is ingested, the user begins to feel the effects of the ketamine. At lower doses, ketamine may merely make the user feel ‘dreamy’. But, at higher doses, ketamine can have extreme euphoric and hallucinogenic effects. When these effects are at their most extreme, the user can become immobilized and go into a ‘K-Hole’.

Ketamine’s effects on mobility and memory are so drastic that it is often used as a date rape drug. In this way, the high of Special K can quickly turn into a horrible low.

This dark side of ketamine is made more dangerous by the fact that recreational users are often getting their supply from unregulated sources, like the Chinese black market or the ‘dark web’. Unregulated drugs like this can be cut with toxic chemicals or other drugs, and they can have very inconsistent potencies, making it nearly impossible to determine a safe dose.

In short, ketamine is like many other street drugs when it’s used illicitly: it offers a quick, dangerous high that can easily lead to addiction.

Using Ketamine as Therapy:

John Abenstein, MD, the president of the American Society of Anesthesiologists, has said that “Outside of the clinic, ketamine can cause tragedies, but in the right hands, it is a miracle.”

It’s this miracle, and not a fun ‘high’, that people are seeking when they use ketamine for therapy.

Many people’s lives have been plagued by depression, bipolar disorder, and PTSD. People lose their jobs because they can’t find the will to leave their beds in the morning. Their friendships fall apart and their marriages often end in divorce. Some severely depressed people end up taking their own lives. These tragedies are all too common.

Ketamine therapy offers real hope for millions of people who struggle with these psychological problems daily. It’s especially important for those ‘treatment resistant’ patients who have found no relief from other treatments like SSRIs.

Even though there is not yet a prescription ketamine medication for depression, many people’s lives have already been changed by ketamine therapy in clinics. In fact, there is a whole Ketamine Advocacy Network whose mission is to “spread awareness of ketamine therapy for treatment-resistant depression, bipolar, and PTSD, and to make this treatment available and affordable for all who need it.”

Ketamine therapy is about so much more than a fun party or a weekend escape. It’s about healing lives that have been fractured by crippling disorders.

Intravenous Infusions for Therapy Vs. Snorting or Injecting to Get High

In its recreational drug form, ketamine tends to be a white powder or a crystallized chunk that can be broken apart. In order to get high, people snort the drug as lines of powder, take it orally in pill forms, or inject it intravenously using hypodermic needles.

All of these forms of recreational use present their own dangers, such as infection, the spread of disease through used needles, or incorrect dosing.

Using ketamine in a medical facility is a very different sort of experience.

The ‘route of administration’ (ROA), or how the drug gets into the body, is very important for ketamine’s therapeutic qualities to work. Most therapeutic doses of the ketamine drug are given intravenously.

The intravenous infusions are given over an elongated period, usually about a half an hour in length. This method allows the practitioners to control the dosage and to spread out the rate of delivery so that the drug can enter the bloodstream in a consistent and steady manner, rather than all at once.

Intravenous infusions also allow the drug to enter directly into the bloodstream. Other ROAs, like pills, can lead to a large percentage of the drug being metabolized by the body before reaching the brain. You can read more about why intravenous infusions are most effective on the Ketamine Advocacy Network website.

How It Feels to Take Ketamine Therapeutically

Therapeutic doses of ketamine definitely won’t send you into a K-Hole, but they can make you a bit woozy. In some cases, people have reported feeling dissociated, but these feeling are usually minor and can even be pleasurable. Still, patients must make sure to arrange a ride home with a friend or family member because they won’t be able to drive.

Many people find that they can go right back to work or school after their ketamine therapy appointment. Others prefer to head home and take a short nap. Either way, the anesthetic effects of the ketamine should be gone shortly after the session.

Although it varies from patient to patient, many people only require ketamine therapy once a week or less in order to see a significant or total reduction in their symptoms!

K-Hole: The Risks of a Special K Drug Overdose

As we’ve mentioned above, a ketamine overdose is not pleasant, and can even be deadly. Although you don’t have to worry about this if you’re just taking therapeutic doses, those who use the drug recreationally must be very careful.

When someone takes high amounts of the Special K drug they can end up in a sort of catatonic state where they can’t move or talk. This is called a K-hole. Some describe it as a near death experience, and that’s not a good thing. It can be a terrifying and even traumatizing experience.

But a K-Hole is not the worst thing that can happen if you take too much ketamine. A ketamine overdose can also lead to vomiting, chest pain, seizures, and even death.

The Future of Ketamine

Depression has plagued humans for millennia. It was first described by Hippocrates as “Melancholia”, and although we know much more about the disease these days, the treatments that are widely available are far from perfect. This is why the advances in ketamine therapy are so exciting.

Doctor Thomas Insel has said that ““Recent data suggest that ketamine, given intravenously, might be the most important breakthrough in antidepressant treatment in decades.” That’s a big deal coming from the director of the Institute of Mental Health.

Ketamine may continue to be a dangerous street drug for some, but for others it’s a beacon of shining hope.

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VA uses ketamine to treat PTSD effectively

The San Francisco Veterans Affairs Medical Center is administering ketamine to veterans with post-traumatic stress disorder and depression.

Tobias Marton, the director of the ketamine infusion program at the center, said that since the program first launched two years ago, they have treated about 40 patients who had virtually exhausted all other options.

“They’ve done everything we’ve asked them to do and they remain with very severe symptoms and with a poor or impaired quality of life,” he said. “Despite (past treatments), there remains a high risk of suicide (with some veterans).”

While it was not clear where the 40 patients are from, the option is something that is available to Humboldt County veterans who are suffering from PTSD or depression.

Marton said that in general, about a third of people diagnosed with depression don’t respond to first, second and third lines of treatment.

In contrast, ketamine infusion has yielded “impressive outcomes.”

Many people know of ketamine as a party drug, often referred to as Special K, but it is mainly used medically for anesthesia or pain treatment.

Miracle of medicine

“We know ketamine has rapid and powerful anti-suicide properties,” he said. “To have another tool, a potentially powerful tool to have an impact on suicide rates is really exciting.”

While Marton is proceeding with “cautious optimism,” Boris Nikolov, the CEO of Neurosciences Medical Clinic in Miami, Florida, which has a ketamine clinic, believes the application might be a medical breakthrough.

It’s one of the greatest discoveries in the field of depression,” he said. “This is one of the miracles in medicine.

Nikolov’s clinic has treated 120 patients with ketamine, including his wife who has PTSD as a result of severe child abuse.

“Ketamine really helped her,” he said. “That was a really big part of her recovery.”

Nikolov said most medicines that treat depression take from two to four weeks to start working. Ketamine begins working within hours after it is administered, a process which usually involves an IV infusion over the course of about an hour.

“What’s most important is the strong and fast effect of ketamine in patients who are very seriously depressed, or want to hurt themselves,” he said. “When they finish treatment, they’re totally different people. There is no other medication that does that.”

Brad Burge, the director of strategic communication at the Multidisciplinary Association for Psychedelic Studies, or MAPS, said there has been “an explosion of treatment that’s outpaced research.”

“It means that people are going to have another option, an alternative to conventional medications,” he said.

According to Burge, MAPS believes the best form of ketamine infusion involves pairing with other forms of psychotherapy such as group or individual counseling.

Ketamine availability

While ketamine is an FDA-approved drug which has been used as an anesthetic as well as a pain reliever, it isn’t officially sanctioned by the FDA to be used for treating mental health disorders. However, Marton said that ketamine has been administered in this fashion for over 18 years now.

A company is currently in the process of trying to get an intranasal product approved by the FDA which would administer ketamine through the nasal passage, according to Marton. He expects the FDA’s decision to be announced sometime around March 2019.

If the product is approved, he said, VA clinics in rural communities like the one in Eureka would likely be able to start offering ketamine treatments as well.

For now, only the location in San Francisco is able to offer the treatment, but Marton said anyone within their service realm, which includes Humboldt County, is invited to consult with the VA about seeking treatment.

“We want to be as thoughtful as we can,” he said. “As we understand more about it … (we) might be able to start helping people who we haven’t been able to help despite throwing everything we have at them.”



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William Jamieson is only 23, but he’s already spent almost one-third of his life battling severe depression.

Once a top student and athlete with a large group of friends, the young Ottawa man fell into a depression at age 16 that he couldn’t shake.

“It got pretty bleak,” he says. “In terms of energy, I just couldn’t get out of bed. I couldn’t eat. I didn’t have the energy to eat. I was wasting away.”

“I kind of kept myself in the dark. That goes to how you see the world,” he adds.

He tried at least 10 medications and received electric shock therapy — but nothing worked.

Watching his son sink further into his depression left William’s father Charles desperate to help.

“There was nothing more they (the doctors) could do, and as a parent, that is not what you want to hear, because the depths of William’s depression were as dark and black as you can imagine,” Charles says.

Fearing for his son’s life, the elder Jamieson went online.

“I typed in Google: ‘breakthrough depression treatments,’ and ‘ketamine’ came up,” he says.

Though probably best known as the party drug “Special K,” ketamine has been used as an anesthetic and painkiller for decades. But in recent years, it’s been explored as a treatment for depression.

Researchers say the drug can lift depression and suicidal thoughts in patients with even one treatment.

Doctors at the Royal Ottawa Mental Health Centre have been using intravenous ketamine on patients with treatment-resistant depression and say they are seeing promising results.

Ketamine isn’t approved by U.S. regulators to treat depression, but hundreds of private health clinics have been offering it off-label. Jamieson now travels from his home in Ottawa to New York City every six weeks to get infusion from anesthesiologist Dr. Glen Brooks.

The darkness began to lift two days after the first treatment, William says.

“It feels like there is a loosening of the fist that is inside of your head.”

His father Charles grows emotional thinking about that weekend.

“I say, ‘Will, how are you feeling?’ He says, ‘Dad, it is gone. The depression is gone. The colours are brighter.’ I will never forget those words. ‘The colour is brighter. The fog is gone,’” he says.

Dr. Brooks has used ketamine for 35 years to treat neuropathic pain. After reading research on using of ketamine for depression, he began to offer the drug to patients with long histories of post-traumatic stress disorder and other mood disorders, charging up to US$400 per infusion.

Many of his patients have tried multiple medications and electroshock therapy and have not responded.

“So this is generally more of a last stop than a first stop,” he explains.

He says the improvements are often rapid and dramatic.

“What patients report is a sense of calmness and wellbeing that comes over them,” he explains.

Dr. Brooks believes that for suicidal patients, “ketamine saves lives every day.”

“I don’t think anything is as effective as ketamine has been,” he says.

In Canada, many psychiatrists are excited to better understand how ketamine works in the brain, but others are urging patience until more is known about the drug’s possible side-effects, including elevated blood pressure, blurred vision, and bladder inflammation.

“We don’t know who is more prone to the side effects or indeed, the long-term consequences of the side effects,” says Dr. Sidney Kennedy, the Arthur Sommer Rotenberg Chair in Suicide and Depression Studies at St. Michael’s Hospital in Toronto.

But Dr. Brooks says patients should be able to access a drug that could save their lives.

“In my experience of treating over 1,500 patients, I see no reason for any patient to wait, especially if they are critically ill with their mood disorder,” he says.

Charles Jamieson thinks ketamine should be more widely available in medically supervised settings.  Until it is, he will pay for his son to get the drug in the U.S.

“I have got my son back and I know he will have the life that he wants to make. He has an opportunity that he would not have had without ketamine,” he says. “Without ketamine, it would have been a terrible, different story.”

 

The Fog Has Lifted <<<<<<<<<<<<<<<<<<<<<<<<LINK TO STORY

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Randomized Controlled Crossover Trial of Ketamine in
Obsessive-Compulsive Disorder: Proof-of-Concept

Ketamine for Obsessive-compulsive disorder  <ARTICLE

Ketamine has effectiveness on the short run when it comes to treating Obsessive-compulsive disorders:

Serotonin reuptake inhibitors (SRIs), the first-line pharmacological treatment for obsessive-compulsive disorder (OCD), have two
limitations: incomplete symptom relief and 2–3 months lag time before clinically meaningful improvement. New medications with faster
onset are needed. As converging evidence suggests a role for the glutamate system in the pathophysiology of OCD, we tested whether a
single dose of ketamine, a non-competitive N-methyl-D-aspartate (NMDA) glutamate receptor antagonist, could achieve rapid antiobsessional
effects. In a randomized, double-blind, placebo-controlled, crossover design, drug-free OCD adults (n ¼ 15) with near-constant
obsessions received two 40-min intravenous infusions, one of saline and one of ketamine (0.5 mg/kg), spaced at least 1-week
apart. The OCD visual analog scale (OCD-VAS) and the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) were used to assess OCD
symptoms. Unexpectedly, ketamine’s effects within the crossover design showed significant (po0.005) carryover effects (ie, lasting
longer than 1 week). As a result, only the first-phase data were used in additional analyses. Specifically, those receiving ketamine (n ¼ 8)
reported significant improvement in obsessions (measured by OCD-VAS) during the infusion compared with subjects receiving placebo
(n ¼ 7). One-week post-infusion, 50% of those receiving ketamine (n ¼ 8) met criteria for treatment response (X35% Y-BOCS
reduction) vs 0% of those receiving placebo (n ¼ 7). Rapid anti-OCD effects from a single intravenous dose of ketamine can persist for at
least 1 week in some OCD patients with constant intrusive thoughts. This is the first randomized, controlled trial to demonstrate that a
drug affecting glutamate neurotransmission can reduce OCD symptoms without the presence of an SRI and is consistent with a
glutamatergic hypothesis of OCD.

 

Ketamine is a noncompetitive antagonist of the NMDA
receptor (a type of glutamate receptor). Studies in patients
with unipolar and bipolar depression have found that a
single intravenous infusion of ketamine can have antidepressant
effects within 40 min of starting the infusion.
These effects persist for 3–18 days, long after the drug has
cleared the patient’s system (Berman et al, 2000;
Diazgranados et al, 2010a, b; Murrough et al, 2012; Valentine
et al, 2011; Zarate et al, 2006, 2012a). We treated an
unmedicated individual with OCD with ketamine (0.5 mg/kg
IV over 40 min) and found rapid anti-obsessional effects that
returned to baseline by 1-week post-infusion (Rodriguez
et al, 2011). Bloch et al (2012) conducted an open ketamine
trial in 10 subjects with OCD and found modest but
statistically significant improvement in OCD symptoms
over days 1–3 following ketamine infusion compared with
baseline; however, most subjects in this study were taking
multiple other medications at the time of infusion.

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_______________________________________________________________________________________________


Ketamine and Psychedelic Drugs Change Structure of Neurons

ummary: A new study reveals psychedelics increase dendrites, dendritic spines and synapses, while ketamine may promote neuroplasticity. The findings could help develop new treatments for anxiety, depression and other related disorders.

Source: UC Davis.

A team of scientists at the University of California, Davis is exploring how hallucinogenic drugs impact the structure and function of neurons — research that could lead to new treatments for depression, anxiety, and related disorders. In a paper published on June 12 in the journal Cell Reports, they demonstrate that a wide range of psychedelic drugs, including well-known compounds such as LSD and MDMA, increase the number of neuronal branches (dendrites), the density of small protrusions on these branches (dendritic spines), and the number of connections between neurons (synapses). These structural changes suggest that psychedelics are capable of repairing the circuits that are malfunctioning in mood and anxiety disorders.

“People have long assumed that psychedelics are capable of altering neuronal structure, but this is the first study that clearly and unambiguously supports that hypothesis. What is really exciting is that psychedelics seem to mirror the effects produced by ketamine,” said David Olson, assistant professor in the Departments of Chemistry and of Biochemistry and Molecular Medicine, who leads the research team.

Ketamine, an anesthetic, has been receiving a lot of attention lately because it produces rapid antidepressant effects in treatment-resistant populations, leading the U.S. Food and Drug Administration to fast-track clinical trials of two antidepressant drugs based on ketamine. The antidepressant properties of ketamine may stem from its tendency to promote neural plasticity — the ability of neurons to rewire their connections.

“The rapid effects of ketamine on mood and plasticity are truly astounding. The big question we were trying to answer was whether or not other compounds are capable of doing what ketamine does,” Olson said.

Psychedelics show similar effects to ketamine

Olson’s group has demonstrated that psychedelics mimic the effects of ketamine on neurons grown in a dish, and that these results extend to structural and electrical properties of neurons in animals. Rats treated with a single dose of DMT — a psychedelic compound found in the Amazonian herbal tea known as ayahuasca — showed an increase in the number of dendritic spines, similar to that seen with ketamine treatment. DMT itself is very short-lived in the rat: Most of the drug is eliminated within an hour. But the “rewiring” effects on the brain could be seen 24 hours later, demonstrating that these effects last for some time.

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Ketamine and Psychedelic Drugs Change Structure of Neurons

Summary: A new study reveals psychedelics increase dendrites, dendritic spines and synapses, while ketamine may promote neuroplasticity. The findings could help develop new treatments for anxiety, depression and other related disorders.

Source: UC Davis.

A team of scientists at the University of California, Davis is exploring how hallucinogenic drugs impact the structure and function of neurons — research that could lead to new treatments for depression, anxiety, and related disorders. In a paper published on June 12 in the journal Cell Reports, they demonstrate that a wide range of psychedelic drugs, including well-known compounds such as LSD and MDMA, increase the number of neuronal branches (dendrites), the density of small protrusions on these branches (dendritic spines), and the number of connections between neurons (synapses). These structural changes suggest that psychedelics are capable of repairing the circuits that are malfunctioning in mood and anxiety disorders.

“People have long assumed that psychedelics are capable of altering neuronal structure, but this is the first study that clearly and unambiguously supports that hypothesis. What is really exciting is that psychedelics seem to mirror the effects produced by ketamine,” said David Olson, assistant professor in the Departments of Chemistry and of Biochemistry and Molecular Medicine, who leads the research team.

Ketamine, an anesthetic, has been receiving a lot of attention lately because it produces rapid antidepressant effects in treatment-resistant populations, leading the U.S. Food and Drug Administration to fast-track clinical trials of two antidepressant drugs based on ketamine. The antidepressant properties of ketamine may stem from its tendency to promote neural plasticity — the ability of neurons to rewire their connections.

“The rapid effects of ketamine on mood and plasticity are truly astounding. The big question we were trying to answer was whether or not other compounds are capable of doing what ketamine does,” Olson said.

Psychedelics show similar effects to ketamine

Olson’s group has demonstrated that psychedelics mimic the effects of ketamine on neurons grown in a dish, and that these results extend to structural and electrical properties of neurons in animals. Rats treated with a single dose of DMT — a psychedelic compound found in the Amazonian herbal tea known as ayahuasca — showed an increase in the number of dendritic spines, similar to that seen with ketamine treatment. DMT itself is very short-lived in the rat: Most of the drug is eliminated within an hour. But the “rewiring” effects on the brain could be seen 24 hours later, demonstrating that these effects last for some time.

image shows neurons under psychedelics and ketamine

Psychedelic drugs such as LSD and ayahuasca change the structure of nerve cells, causing them to sprout more branches and spines, UC Davis researchers have found. This could help in “rewiring” the brain to treat depression and other disorders. In this false-colored image, the rainbow-colored cell was treated with LSD compared to a control cell in blue. NeuroscienceNews.com image is credited to Calvin and Joanne Ly.

Behavioral studies also hint at the similarities between psychedelics and ketamine. In another recent paper published in ACS Chemical Neuroscience, Olson’s group showed that DMT treatment enabled rats to overcome a “fear response” to the memory of a mild electric shock. This test is considered to be a model of post-traumatic stress disorder (PTSD), and interestingly, ketamine produces the same effect. Recent clinical trials have shown that like ketamine, DMT-containing ayahuasca might have fast-acting effects in people with recurrent depression, Olson said.

These discoveries potentially open doors for the development of novel drugs to treat mood and anxiety disorders, Olson said. His team has proposed the term “psychoplastogen” to describe this new class of “plasticity-promoting” compounds.

“Ketamine is no longer our only option. Our work demonstrates that there are a number of distinct chemical scaffolds capable of promoting plasticity like ketamine, providing additional opportunities for medicinal chemists to develop safer and more effective alternatives,” Olson said.

 

Psychedelic drugs, ketamine change structure of neurons

Psychedelic drugs, ketamine change structure of neurons

Psychedelics as Possible Treatments for Depression and PTSD

A team of scientists at the University of California, Davis, is exploring how hallucinogenic drugs impact the structure and function of neurons — research that could lead to new treatments for depression, anxiety and related disorders.

In a paper published on June 12 in the journal Cell Reports, they demonstrate that a wide range of psychedelic drugs, including well-known compounds such as LSD and MDMA, increase the number of neuronal branches (dendrites), the density of small protrusions on these branches (dendritic spines) and the number of connections between neurons (synapses). These structural changes could suggest that psychedelics are capable of repairing the circuits that are malfunctioning in mood and anxiety disorders.

“People have long assumed that psychedelics are capable of altering neuronal structure, but this is the first study that clearly and unambiguously supports that hypothesis. What is really exciting is that psychedelics seem to mirror the effects produced by ketamine,” said David Olson, assistant professor in the departments of Chemistry and of Biochemistry and Molecular Medicine, who leads the research team.

Ketamine, an anesthetic, has been receiving a lot of attention lately because it produces rapid antidepressant effects in treatment-resistant populations, leading the U.S. Food and Drug Administration to fast-track clinical trials of two antidepressant drugs based on ketamine. The antidepressant properties of ketamine may stem from its tendency to promote neural plasticity — the ability of neurons to rewire their connections.

“The rapid effects of ketamine on mood and plasticity are truly astounding. The big question we were trying to answer was whether or not other compounds are capable of doing what ketamine does,” Olson said.

Psychedelics show similar effects to ketamine

Olson’s group has demonstrated that psychedelics mimic the effects of ketamine on neurons grown in a dish, and that these results extend to structural and electrical properties of neurons in animals. Rats treated with a single dose of DMT — a psychedelic compound found in the Amazonian herbal tea known as ayahuasca — showed an increase in the number of dendritic spines, similar to that seen with ketamine treatment. DMT itself is very short-lived in the rat: Most of the drug is eliminated within an hour. But the “rewiring” effects on the brain could be seen 24 hours later, demonstrating that these effects last for some time.

Behavioral studies also hint at the similarities between psychedelics and ketamine. In another recent paper published in ACS Chemical Neuroscience, Olson’s group showed that DMT treatment enabled rats to overcome a “fear response” to the memory of a mild electric shock. This test is considered to be a model of post-traumatic stress disorder, or PTSD, and interestingly, ketamine produces the same effect. Recent clinical trials have shown that like ketamine, DMT-containing ayahuasca might have fast-acting effects in people with recurrent depression, Olson said.

These discoveries potentially open doors for the development of novel drugs to treat mood and anxiety disorders, Olson said. His team has proposed the term “psychoplastogen” to describe this new class of “plasticity-promoting” compounds.

“Ketamine is no longer our only option. Our work demonstrates that there are a number of distinct chemical scaffolds capable of promoting plasticity like ketamine, providing additional opportunities for medicinal chemists to develop safer and more effective alternatives,” Olson said.

Additional co-authors on the Cell Reports “Psychedelics Promote Structural and Functional Neural Plasticity.” study are Calvin Ly, Alexandra Greb, Sina Soltanzadeh Zarandi, Lindsay Cameron, Jonathon Wong, Eden Barragan, Paige Wilson, Michael Paddy, Kassandra Ori-McKinney, Kyle Burbach, Megan Dennis, Alexander Sood, Whitney Duim, Kimberley McAllister and John Gray.

Olson and Cameron were co-authors on the ACS Chemical Neuroscience paper along with Charlie Benson and Lee Dunlap.

The work was partly supported by grants from the National Institutes of Health.

Psychedelics Promote Structural and Functional
Neural Plasticity

Below is the Intro and Discussion for the article:

Psychedelics Promote Structural and Functional neural Plasticity

Authors:

Calvin Ly, Alexandra C. Greb,
Lindsay P. Cameron, …,
Kassandra M. Ori-McKenney,
John A. Gray, David E. Olson
Correspondence
deolson@ucdavis.edu

In Brief
Ly et al. demonstrate that psychedelic
compounds such as LSD, DMT, and DOI
increase dendritic arbor complexity,
promote dendritic spine growth, and
stimulate synapse formation. These
cellular effects are similar to those
produced by the fast-acting
antidepressant ketamine and highlight
the potential of psychedelics for treating
depression and related disorders.

  • Highlights
     Serotonergic psychedelics increase neuritogenesis,
    spinogenesis, and synaptogenesis
  •  Psychedelics promote plasticity via an evolutionarily
    conserved mechanism
  •  TrkB, mTOR, and 5-HT2A signaling underlie psychedelicinduced
    plasticity
  •  Noribogaine, but not ibogaine, is capable of promoting
    structural neural plasticity

SUMMARY
Atrophy of neurons in the prefrontal cortex (PFC)
plays a key role in the pathophysiology of depression
and related disorders. The ability to promote
both structural and functional plasticity in the PFC
has been hypothesized to underlie the fast-acting
antidepressant properties of the dissociative anesthetic
ketamine. Here, we report that, like ketamine,
serotonergic psychedelics are capable of robustly
increasing neuritogenesis and/or spinogenesis both
in vitro and in vivo. These changes in neuronal structure
are accompanied by increased synapse number
and function, as measured by fluorescence microscopy
and electrophysiology. The structural changes
induced by psychedelics appear to result from stimulation
of the TrkB, mTOR, and 5-HT2A signaling
pathways and could possibly explain the clinical
effectiveness of these compounds. Our results underscore
the therapeutic potential of psychedelics
and, importantly, identify several lead scaffolds for
medicinal chemistry efforts focused on developing
plasticity-promoting compounds as safe, effective,
and fast-acting treatments for depression and
related disorders.

INTRODUCTION
Neuropsychiatric diseases, including mood and anxiety disorders,
are some of the leading causes of disability worldwide
and place an enormous economic burden on society (Gustavsson
et al., 2011; Whiteford et al., 2013). Approximately
one-third of patients will not respond to current antidepressant
drugs, and those who do will usually require at least 2–4 weeks
of treatment before they experience any beneficial effects
(Rush et al., 2006). Depression, post-traumatic stress disorder
(PTSD), and addiction share common neural circuitry (Arnsten,
2009; Russo et al., 2009; Peters et al., 2010; Russo and
Nestler, 2013) and have high comorbidity (Kelly and Daley,
2013). A preponderance of evidence from a combination of
human imaging, postmortem studies, and animal models suggests
that atrophy of neurons in the prefrontal cortex (PFC)
plays a key role in the pathophysiology of depression and
related disorders and is precipitated and/or exacerbated by
stress (Arnsten, 2009; Autry and Monteggia, 2012; Christoffel
et al., 2011; Duman and Aghajanian, 2012; Duman et al.,
2016; Izquierdo et al., 2006; Pittenger and Duman, 2008;
Qiao et al., 2016; Russo and Nestler, 2013). These structural
changes, such as the retraction of neurites, loss of dendritic
spines, and elimination of synapses, can potentially be counteracted
by compounds capable of promoting structural and
functional neural plasticity in the PFC (Castre´ n and Antila,
2017; Cramer et al., 2011; Duman, 2002; Hayley and Litteljohn,
2013; Kolb and Muhammad, 2014; Krystal et al., 2009;
Mathew et al., 2008), providing a general solution to treating
all of these related diseases. However, only a relatively small
number of compounds capable of promoting plasticity in the
PFC have been identified so far, each with significant drawbacks
(Castre´ n and Antila, 2017). Of these, the dissociative
anesthetic ketamine has shown the most promise, revitalizing
the field of molecular psychiatry in recent years.
Ketamine has demonstrated remarkable clinical potential as a
fast-acting antidepressant (Berman et al., 2000; Ionescu et al.,
2016; Zarate et al., 2012), even exhibiting efficacy in treatmentresistant
populations (DiazGranados et al., 2010; Murrough
et al., 2013; Zarate et al., 2006). Additionally, it has shown promise
for treating PTSD (Feder et al., 2014) and heroin addiction
(Krupitsky et al., 2002). Animal models suggest that its therapeutic
effects stem from its ability to promote the growth of dendritic
spines, increase the synthesis of synaptic proteins, and
strengthen synaptic responses (Autry et al., 2011; Browne and
Lucki, 2013; Li et al., 2010).

Like ketamine, serotonergic psychedelics and entactogens
have demonstrated rapid and long-lasting antidepressant and
anxiolytic effects in the clinic after a single dose (Bouso et al.,
2008; Carhart-Harris and Goodwin, 2017; Grob et al., 2011;
Mithoefer et al., 2013, 2016; Nichols et al., 2017; Sanches
et al., 2016; Oso´ rio et al., 2015), including in treatment-resistant
populations (Carhart-Harris et al., 2016, 2017; Mithoefer et al.,
2011; Oehen et al., 2013; Rucker et al., 2016). In fact, there
have been numerous clinical trials in the past 30 years examining
the therapeutic effects of these drugs (Dos Santos et al., 2016),
with 3,4-methylenedioxymethamphetamine (MDMA) recently
receiving the ‘‘breakthrough therapy’’ designation by the Food
and Drug Administration for treating PTSD. Furthermore, classical
psychedelics and entactogens produce antidepressant
and anxiolytic responses in rodent behavioral tests, such as
the forced swim test (Cameron et al., 2018) and fear extinction
learning (Cameron et al., 2018; Catlow et al., 2013; Young
et al., 2015), paradigms for which ketamine has also been shown
to be effective (Autry et al., 2011; Girgenti et al., 2017; Li et al.,
2010). Despite the promising antidepressant, anxiolytic, and
anti-addictive properties of serotonergic psychedelics, their
therapeutic mechanism of action remains poorly understood,
and concerns about safety have severely limited their clinical
usefulness.
Because of the similarities between classical serotonergic
psychedelics and ketamine in both preclinical models and clinical
studies, we reasoned that their therapeutic effects might
result from a shared ability to promote structural and functional
neural plasticity in cortical neurons. Here, we report that serotonergic
psychedelics and entactogens from a variety of chemical
classes (e.g., amphetamine, tryptamine, and ergoline) display
plasticity-promoting properties comparable to or greater than
ketamine. Like ketamine, these compounds stimulate structural
plasticity by activating the mammalian target of rapamycin
(mTOR). To classify the growing number of compounds capable
of rapidly promoting induced plasticity (Castre´ n and Antila,
2017), we introduce the term ‘‘psychoplastogen,’’ from the
Greek roots psych- (mind), -plast (molded), and -gen (producing).
Our work strengthens the growing body of literature indicating
that psychoplastogens capable of promoting plasticity
in the PFC might have value as fast-acting antidepressants
and anxiolytics with efficacy in treatment-resistant populations
and suggests that it may be possible to use classical psychedelics
as lead structures for identifying safer alternatives.

DISCUSSION
Classical serotonergic psychedelics are known to cause
changes in mood (Griffiths et al., 2006, 2008, 2011) and brain
function (Carhart-Harris et al., 2017) that persist long after the
acute effects of the drugs have subsided. Moreover, several
psychedelics elevate glutamate levels in the cortex (Nichols,
2004, 2016) and increase gene expression in vivo of the neurotrophin
BDNF as well as immediate-early genes associated with
plasticity (Martin et al., 2014; Nichols and Sanders-Bush, 2002;
Vaidya et al., 1997). This indirect evidence has led to the
reasonable hypothesis that psychedelics promote structural
and functional neural plasticity, although this assumption had
never been rigorously tested (Bogenschutz and Pommy,
2012; Vollenweider and Kometer, 2010). The data presented
here provide direct evidence for this hypothesis, demonstrating
that psychedelics cause both structural and functional changes
in cortical neurons.

Prior to this study, two reports suggested
that psychedelics might be able
to produce changes in neuronal structure.
Jones et al. (2009) demonstrated that DOI
was capable of transiently increasing the
size of dendritic spines on cortical neurons,
but no change in spine density was
observed. The second study showed
that DOI promoted neurite extension in a
cell line of neuronal lineage (Marinova
et al., 2017). Both of these reports utilized
DOI, a psychedelic of the amphetamine
class. Here we demonstrate that the ability
to change neuronal structure is not a
unique property of amphetamines like
DOI because psychedelics from the ergoline,
tryptamine, and iboga classes of compounds also promote
structural plasticity. Additionally, D-amphetamine does not increase
the complexity of cortical dendritic arbors in culture,
and therefore, these morphological changes cannot be simply
attributed to an increase in monoamine neurotransmission.
The identification of psychoplastogens belonging to distinct
chemical families is an important aspect of this work because
it suggests that ketamine is not unique in its ability to promote
structural and functional plasticity. In addition to ketamine, the
prototypical psychoplastogen, only a relatively small number of
plasticity-promoting small molecules have been identified previously.
Such compounds include the N-methyl-D-aspartate
(NMDA) receptor ligand GLYX-13 (i.e., rapastinel), the mGlu2/3
antagonist LY341495, the TrkB agonist 7,8-DHF, and the muscarinic
receptor antagonist scopolamine (Lepack et al., 2016; Castello
et al., 2014; Zeng et al., 2012; Voleti et al., 2013). We
observe that hallucinogens from four distinct structural classes
(i.e., tryptamine, amphetamine, ergoline, and iboga) are also
potent psychoplastogens, providing additional lead scaffolds
for medicinal chemistry efforts aimed at identifying neurotherapeutics.
Furthermore, our cellular assays revealed that several
of these compounds were more efficacious (e.g., MDMA) or more potent (e.g., LSD) than ketamine. In fact, the plasticity-promoting
properties of psychedelics and entactogens rivaled that
of BDNF (Figures 3A–3C and S3). The extreme potency of LSD
in particular might be due to slow off kinetics, as recently proposed
following the disclosure of the LSD-bound 5-HT2B crystal
structure (Wacker et al., 2017).
Importantly, the psychoplastogenic effects of psychedelics in
cortical cultures were also observed in vivo using both vertebrate
and invertebrate models, demonstrating that they act through an
evolutionarily conserved mechanism. Furthermore, the concentrations
of psychedelics utilized in our in vitro cell culture assays
were consistent with those reached in the brain following systemic
administration of therapeutic doses in rodents (Yang
et al., 2018; Cohen and Vogel, 1972). This suggests that neuritogenesis,
spinogenesis, and/or synaptogenesis assays performed
using cortical cultures might have value for identifying
psychoplastogens and fast-acting antidepressants. It should
be noted that our structural plasticity studies performed in vitro
utilized neurons exposed to psychedelics for extended periods
of time. Because brain exposure to these compounds is often
of short duration due to rapid metabolism, it will be interesting
to assess the kinetics of psychedelic-induced plasticity.
A key question in the field of psychedelic medicine has been
whether or not psychedelics promote changes in the density of
dendritic spines (Kyzar et al., 2017). Using super-resolution
SIM, we clearly demonstrate that psychedelics do, in fact, increase
the density of dendritic spines on cortical neurons, an effect
that is not restricted to a particular structural class of compounds.
Using DMT, we verified that cortical neuron spine
density increases in vivo and that these changes in structural
plasticity are accompanied by functional effects such as
increased amplitude and frequency of spontaneous EPSCs.

We specifically designed these experiments
to mimic previous studies of ketamine
(Li et al., 2010) so that we might
directly compare these two compounds,
and, to a first approximation, they appear
to be remarkably similar. Not only do they
both increase spine density and neuronal
excitability in the cortex, they seem to
have similar behavioral effects. We have
shown previously that, like ketamine,
DMT promotes fear extinction learning
and has antidepressant effects in the
forced swim test (Cameron et al., 2018). These results, coupled
with the fact that ayahuasca, a DMT-containing concoction, has
potent antidepressant effects in humans (Oso´ rio et al., 2015;
Sanches et al., 2016; Santos et al., 2007), suggests that classical
psychedelics and ketamine might share a related therapeutic
mechanism.
Although the molecular targets of ketamine and psychedelics
are different (NMDA and 5-HT2A receptors, respectively), they
appear to cause similar downstream effects on structural plasticity
by activating mTOR. This finding is significant because ketamine is
known to be addictive whereas many classical psychedelics are
not (Nutt et al., 2007, 2010). The exact mechanisms by which these
compounds stimulate mTOR is still not entirely understood, but
our data suggest that, at least for classical psychedelics, TrkB
and 5-HT2A receptors are involved. Although most classical psychedelics
are not considered to be addictive, there are still significant
safety concerns with their use in medicine because they
cause profound perceptual disturbances and still have the potential
to be abused. Therefore, the identification of non-hallucinogenic
analogs capable of promoting plasticity in the PFC could
facilitate a paradigm shift in our approach to treating neuropsychiatric
diseases. Moreover, such compounds could be critical to
resolving the long-standing debate in the field concerning whether
the subjective effects of psychedelics are necessary for their therapeutic
effects (Majic et al., 2015  ). Although our group is actively
investigating the psychoplastogenic properties of non-hallucinogenic
analogs of psychedelics, others have reported the therapeutic
potential of safer structural and functional analogs of ketamine
(Moskal et al., 2017; Yang et al., 2015; Zanos et al., 2016).
Our data demonstrate that classical psychedelics from several
distinct chemical classes are capable of robustly promoting the
growth of both neurites and dendritic spines in vitro, in vivo, and across species. Importantly, our studies highlight the similarities
between the effects of ketamine and those of classical serotonergic
psychedelics, supporting the hypothesis that the clinical
antidepressant and anxiolytic effects of these molecules might
result from their ability to promote structural and functional plasticity
in prefrontal cortical neurons. We have demonstrated that
the plasticity-promoting properties of psychedelics require
TrkB, mTOR, and 5-HT2A signaling, suggesting that these key
signaling hubs may serve as potential targets for the development
of psychoplastogens, fast-acting antidepressants, and anxiolytics.
Taken together, our results suggest that psychedelics
may be used as lead structures to identify next-generation neurotherapeutics
with improved efficacy and safety profiles.

Also below is a great article on DMT and neuroplasticity:

 

Dark Classics in Chemical Neuroscience N,N-Dimethyltryptamine DMT

Ketamine IV reduces depression in Adolescents |703-844-0184 | Ketamine therapy for Anxiety and Depression| IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |

NOVA Health Recovery  <<< Ketamine Treatment Center Fairfax, Virginia

CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

Ketaminealexandria.com    703-844-0184 Call for an infusion to treat your depression. PTSD, Anxiety, CRPS, or other pain disorder today.

email@novahealthrecovery.com  << Email for questions to the doctor

Ketamine center in Fairfax, Virginia    << Ketamine infusions

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Ketamine doctors in Fairfax, Va | 703-844-0184

Below is a recent study regarding the treatment of adolescents with Ketamine for refractory depression. There seems to be good success and longer lasting results:

Intravenous Ketamine for Adolescents with Treatment-Resistant Depression: An Open-Label Study

The average response rate in published studies testing ketamine for adult TRD is 67% (Wan et al. 2015), which is considerably higher than TRD interventions (e.g., the average response rate for transcranial magnetic stimulation is 45%
(Conelea et al. 2017).

Background: Novel interventions for treatment-resistant depression (TRD) in adolescents are urgently needed. Ketamine has been studied in adults with TRD, but little information is available for adolescents. This study investigated efficacy and tolerability of intravenous ketamine in adolescents with TRD, and explored clinical response predictors.

Methods: Adolescents, 12–18 years of age, with TRD (failure to respond to two previous antidepressant trials) were administered six ketamine (0.5 mg/kg) infusions over 2 weeks. Clinical response was defined as a 50% decrease in Children’s Depression Rating Scale-Revised (CDRS-R); remission was CDRS-R score ≤28. Tolerability assessment included monitoring vital signs and dissociative symptoms using the Clinician-Administered Dissociative States Scale (CADSS).

Results: Thirteen participants (mean age 16.9 years, range 14.5–18.8 years, eight biologically male) completed the protocol. Average decrease in CDRS-R was 42.5% (p = 0.0004). Five (38%) adolescents met criteria for clinical response. Three responders showed sustained remission at 6-week follow-up; relapse occurred within 2 weeks for the other two responders. Ketamine infusions were generally well tolerated; dissociative symptoms and hemodynamic symptoms were transient. Higher dose was a significant predictor of treatment response.

Conclusions: These results demonstrate the potential role for ketamine in treating adolescents with TRD. Limitations include the open-label design and small sample; future research addressing these issues are needed to confirm these results. Additionally, evidence suggested a dose–response relationship; future studies are needed to optimize dose. Finally, questions remain regarding the long-term safety of ketamine as a depression treatment; more information is needed before broader clinical use.

Intravenous Ketamine for Adolescents – PDF

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Ketamine IV reduces suicidal thinking in depressed patients |703-844-0184 | Ketamine therapy for Anxiety and Depression| IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |

NOVA Health Recovery  <<< Ketamine Treatment Center Fairfax, Virginia

CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

Ketaminealexandria.com    703-844-0184 Call for an infusion to treat your depression. PTSD, Anxiety, CRPS, or other pain disorder today.

email@novahealthrecovery.com  << Email for questions to the doctor

Ketamine center in Fairfax, Virginia    << Ketamine infusions

Ketamine – NOVA Ketamine facebook page – ketamine treatment for depression

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Ketamine has much support in the use of hard-to-treat depression and suicidal behaviors. Below are studies and their links, including a meta-analysis, which demonstrate the effect of Ketamine. Also a recent trial by Carlos Zarate shows the heterogenous nature of response to Ketamine . It is difficult to say who is going to be lifted from their depression completely or partially respond, but in the study, Dr. Zarate showed that patients with a long history of suicidal thinking and self-harm will have less of a response in some cases.

NOVA Health Recovery | 703-844-0184 | Fairfax, Virginia 22304
NOVA Health Recovery | 703-844-0184 | Fairfax, Virginia 22304

Intravenous ketamine may rapidly reduce suicidal thinking in depressed patients << Article link 

Intravenous ketamine may rapidly reduce suicidal thinking in depressed patients

Repeat intravenous treatment with low doses of the anesthetic drug ketamine quickly reduced suicidal thoughts in a small group of patients with treatment-resistant depression. In their report receiving Online First publication in the Journal of Clinical Psychiatry, a team of Massachusetts General Hospital (MGH) investigators report the results of their study in depressed outpatients who had been experiencing suicidal thought for three months or longer.

“Our finding that low doses of ketamine, when added on to current antidepressant medications, quickly decreased suicidal thinking in depressed patients is critically important because we don’t have many safe, effective, and easily available treatments for these patients,” says Dawn Ionescu, MD, of the Depression Clinical and Research Program in the MGH Department of Psychiatry, lead and corresponding author of the paper. “While several previous studies have shown that ketamine quickly decreases symptoms of depression in patients with treatment-resistant depression, many of them excluded patients with current suicidal thinking.”

It is well known that having suicidal thoughts increases the risk that patients will attempt suicide, and the risk for suicide attempts is 20 times higher in patients with depression than the general population. The medications currently used to treat patients with suicidal thinking — including lithium and clozapine — can have serious side effects, requiring careful monitoring of blood levels; and while electroconvulsive therapy also can reduce suicidal thinking, its availability is limited and it can have significant side effects, including memory loss.

Primarily used as a general anesthetic, ketamine has been shown in several studies to provide rapid relief of symptoms of depression. In addition to excluding patients who reported current suicidal thinking, many of those studies involved only a single ketamine dose. The current study was designed not only to examine the antidepressant and antisuicidal effects of repeat, low-dose ketamine infusions in depressed outpatients with suicidal thinking that persisted in spite of antidepressant treatment, but also to examine the safety of increased ketamine dosage.

The study enrolled 14 patients with moderate to severe treatment-resistant depression who had suicidal thoughts for three months or longer. After meeting with the research team three times to insure that they met study criteria and were receiving stable antidepressant treatment, participants received two weekly ketamine infusions over a three-week period. The initial dosage administered was 0.5 mg/kg over a 45 minute period — about five times less than a typical anesthetic dose — and after the first three doses, it was increased to 0.75 mg/kg. During the three-month follow-up phase after the ketamine infusions, participants were assessed every other week.

The same assessment tools were used at each visit before, during and after the active treatment phase. At the treatment visits they were administered about 4 hours after the infusions were completed. The assessments included validated measures of suicidal thinking, in which patients were directly asked to rank whether they had specific suicide-related thoughts, their frequency and intensity.

While only 12 of the 14 enrolled participants completed all treatment visits — one dropped out because of ketamine side effects and one had a scheduling conflict — most of them experienced a decrease in suicidal thinking, and seven achieved complete remission of suicidal thoughts at the end of the treatment period. Of those seven participants, two maintained remission from both suicidal thinking and depression symptoms throughout the follow-up period. While there were no serious adverse events at either dose and no major differences in side effects between the two dosage levels, additional studies in larger groups of patients are required before any conclusions can be drawn.

“In order to qualify for this study, patients had to have suicidal thinking for at least three months, along with persistent depression, so the fact that they experienced any reduction in suicidal thinking, let alone remission, is very exciting,” says Ionescu, who is an instructor in Psychiatry at Harvard Medical School. “We only studied intravenous ketamine, but this result opens the possibility for studying oral and intranasal doses, which may ease administration for patients in suicidal crises.”

She adds, “One main limitation of our study was that all participants knew they were receiving ketamine. We are now finishing up a placebo-controlled study that we hope to have results for soon. Looking towards the future, studies that aim to understand the mechanism by which ketamine and its metabolites work for people with suicidal thinking and depression may help us discover areas of the brain to target with new, even better therapeutic drugs.”

 

Rapid and Sustained Reductions in Current Suicidal Ideation Following Repeated Doses of Intravenous Ketamine: Secondary Analysis of an Open-Label Study  << Article in Clinical Psychiatry

Ketamine for Rapid Reduction of Suicidal Thoughts in Major Depression: A Midazolam-Controlled Randomized Clinical Trial Article link for below:

Ketamine was significantly more effective than a commonly used sedative in reducing suicidal thoughts in depressed patients, according to researchers at Columbia University Medical Center (CUMC). They also found that ketamine’s anti-suicidal effects occurred within hours after its administration.

The findings were published online last week in the American Journal of Psychiatry.

According to the Centers for Disease Control and Prevention, suicide rates in the U.S. increased by 26.5 percent between 1999 and 2015.

“There is a critical window in which depressed patients who are suicidal need rapid relief to prevent self-harm,” said Michael Grunebaum, MD, a research psychiatrist at CUMC, who led the study. “Currently available antidepressants can be effective in reducing suicidal thoughts in patients with depression, but they can take weeks to have an effect. Suicidal, depressed patients need treatments that are rapidly effective in reducing suicidal thoughts when they are at highest risk. Currently, there is no such treatment for rapid relief of suicidal thoughts in depressed patients.”

Most antidepressant trials have excluded patients with suicidal thoughts and behavior, limiting data on the effectiveness of antidepressants in this population. However, previous studies have shown that low doses of ketamine, an anesthetic drug, causes a rapid reduction in depression symptoms and may be accompanied by a decrease in suicidal thoughts.

The 80 depressed adults with clinically significant suicidal thoughts who enrolled in this study were randomly assigned to receive an infusion of low-dose ketamine or midazolam, a sedative. Within 24 hours, the ketamine group had a clinically significant reduction in suicidal thoughts that was greater than with the midazolam group. The improvement in suicidal thoughts and depression in the ketamine group appeared to persist for up to six weeks.

Those in the ketamine group also had greater improvement in overall mood, depression, and fatigue compared with the midazolam group. Ketamine’s effect on depression accounted for approximately one-third of its effect on suicidal thoughts, suggesting the treatment has a specific anti-suicidal effect.

Side effects, mainly dissociation (feeling spacey) and an increase in blood pressure during the infusion, were mild to moderate and typically resolved within minutes to hours after receiving ketamine.

“This study shows that ketamine offers promise as a rapidly acting treatment for reducing suicidal thoughts in patients with depression,” said Dr. Grunebaum. “Additional research to evaluate ketamine’s antidepressant and anti-suicidal effects may pave the way for the development of new antidepressant medications that are faster acting and have the potential to help individuals who do not respond to currently available treatments.”

Ketamine for Rapid Reduction of Suicidal Thoughts in major depression – A midazolam controlled trial PDF article

Ketamine for depression | PTSD | 703-844-0184 | NOVA Health Recovery | Fairfax, Virginia 22304
Ketamine for depression | PTSD | 703-844-0184 | NOVA Health Recovery | Fairfax, Virginia 22304

______________________________________________________________________

Ketamine as a Potential Treatment for Suicidal Ideation A Systematic Review of the Literature 2015

Abstract
Objective To review the published literature on the efficacy
of ketamine for the treatment of suicidal ideation (SI).
Methods The PubMed and Cochrane databases were
searched up to January 2015 for clinical trials and case
reports describing therapeutic ketamine administration to
patients presenting with SI/suicidality. Searches were also
conducted for relevant background material regarding the
pharmacological function of ketamine.
Results Nine publications (six studies and three case
reports) met the search criteria for assessing SI after
administration of subanesthetic ketamine. There were no
studies examining the effect on suicide attempts or death
by suicide. Each study demonstrated a rapid and clinically
significant reduction in SI, with results similar to previously
described data on ketamine and treatment-resistant
depression. A total of 137 patients with SI have been
reported in the literature as receiving therapeutic ketamine.
Seven studies delivered a dose of 0.5 mg/kg intravenously
over 40 min, while one study administered a 0.2 mg/kg
intravenous bolus and another study administered a liquid
suspension. The earliest significant results were seen after
40 min, and the longest results were observed up to
10 days postinfusion.
Conclusion Consistent with clinical research on ketamine
as a rapid and effective treatment for depression, ketamine
has shown early preliminary evidence of a reduction in
depressive symptoms, as well as reducing SI, with minimal
short-term side effects. Additional studies are needed to
further investigate its mechanism of action, long-term
outcomes, and long-term adverse effects (including abuse)
and benefits. In addition, ketamine could potentially be
used as a prototype for further development of rapid-acting
antisuicidal medication with a practical route of administration
and the most favorable risk/benefit ratio.
Key Points
Preliminary data from randomized controlled trials
have demonstrated that ketamine may rapidly and
effectively control treatment-resistant depression,
though the effects are transient.
A small subset of studies has demonstrated similar
results in the effects of ketamine on suicidal ideation.
Ketamine has potential as a rapid treatment for
suicidal ideation and/or a possible model compound
for future drug development.

4 Discussion
With an estimated prevalence of mood disorders ranging
from 3.3 to 21.4 % and the substantially increased risk of
suicide among patients with mood disorders, treatment is
certainly warranted [19]. Current treatment options for
suicidality are limited. They include brain stimulation
therapeutics, such as ECT, and pharmacological intervention
(lithium, clozapine). The efficacy of lithium in treating
suicidality has been documented [20, 21] and has recently been reviewed and pooled in a recent meta-analysis of 48
studies [22]. Clozapine has also been shown to reduce
suicide risk in patients with schizophrenia [23, 24]. The
limitations of both lithium and clozapine include a longer
time to efficacy in this psychiatric emergency/urgency,
compared with the early response to ketamine [25]. Ketamine
seems to be gaining substantial evidence as a pharmacological
option for depression with a fast onset of
action, but its long-term effects need further investigation.
In addition, ketamine probably offers a faster onset of
action in terms of SI, but further work is certainly needed
in this area. Given the risk of suicide and even the
increasing rates of suicide in certain subgroups, such as
soldiers and veterans [26, 27], there is an urgent need for
faster therapeutics for SI and TRD. Importantly, suicidality
and suicide pose a high global burden of patient suffering
to families and society. Although several small-to-moderate
sized studies, in addition to several reviews, have been
published that have examined the efficacy of ketamine in
TRD, there are considerably fewer published data
specifically examining ketamine in patients presenting with
SI. Notably, only three studies have directly examined SI
as the primary outcome [11, 16, 17], while the rest
examined SI as the secondary outcome [4, 15, 18], not
including case reports. This review summarizes the current
published literature regarding ketamine as a treatment for
SI. The data so far show promising trends of ketamine
being an effective and rapid treatment with minimal side
effects.
Pharmacologically, ketamine is an N-methyl-D-aspartate
(NMDA) receptor antagonist. It has been used for anesthesia
in the USA since the 1970s. At subanesthetic doses,
ketamine has been shown to increase glutamate levels [3].
This mechanism is relevant, as glutamate regulation and
expression are altered in patients with major depressive
disorder (MDD). Studies have also demonstrated an
abnormal glutamate–glutamine–gamma-aminobutyric acid
cycle in patients with suicidality [28]. Furthermore, ketamine
has also been shown to work on nicotinic and opioid
receptors [29]. No other class of antidepressant medication
works to modulate the glutamatergic system, and research
continues into this, with the goal of characterizing the full
mechanism of action of ketamine and perhaps developing
other compounds that would have similar effects. Thus,
even if the approval and marketing of ketamine as a rapidacting
antisuicidal and antidepressant medication is not
realized, it could well be a prototype for development of
other medication(s) that retain the mechanism of action
with more favorable qualities and a lesser adverse effect
profile (such as a longer duration of action or less or no
addictive potential). Although the mechanisms explaining
the antisuicidal effect and the NMDA receptor antagonism
of ketamine are still unclear, some of the initial evidence
points to an anti-inflammatory action via the kynurenic
acid pathway. Strong suggestions as to the causal relationship
between inflammation and depression/suicidality
has come from studies demonstrating that cytokines [30,
31] and interferon-b [32] induce depression and suicidality.
Other recent studies have added to the notion of implicating
brain immune activation in the pathogenesis of suicidality.
For instance, one study showed microglial
activation of postmortem brain tissue in suicide victims
[33]. Another study found increased levels of the cytokine
interleukin-6 in cerebrospinal fluid from patients who had
attempted suicide [34]. Higher levels of inflammatory
markers have been shown in suicidal patients than in nonsuicidal
depressed patients [33, 35]. Inflammation leads to
production of both quinolinic acid (an NMDA agonist) and
kynurenic acid (a NMDA antagonist). An increased
quinolinic acid to kynurenic acid ratio leads to NMDA
receptor stimulation. The correlation between quinolinic
acid and Suicide Intent Scale scores indicates that changes
in glutamatergic neurotransmission could be specifically
linked to suicidality [36].
Small randomized controlled trials have demonstrated
the efficacy of ketamine in rapidly treating patients with
both TRD and/or bipolar depression [4, 8, 9, 11, 16–18].
Some studies have also examined suicide items as a secondary
measure in their depression rating scales [4, 7]. In
total, the studies examining ketamine and TRD have nearly
consistently demonstrated that ketamine provides relief
from depressive and suicidal symptoms, starting at 40 min
and lasting for as long as 5 days. Questions still remain as
to the long-term effects of this treatment, how much should
be administered and how often, any serious adverse effects,
and the mechanism of action.
Pharmacologically, ketamine has poor bioavailability
and is best administered via injection [37]. In their landmark
study, Berman et al. [4] found that a subanesthetic
dose (0.5 mg/kg) rapidly improved depressive symptoms.
Most of the subsequent studies have delivered ketamine as
a constant infusion for 40 min at a rate of 0.5 mg/kg.
Others have examined its efficacy after multiple infusions
and observed similar results [8, 13, 16, 38]. Currently, it is
recommended that ketamine be administered in a hospital
setting [39].

______________________________________

Characterizing the course of suicidal ideation response to ketamine

Characterizing the course of suicidal ideation response to ketamine PDF

2018 article from Carlos Zarate discussing the variable course outcomes with Ketamine for suicidality and correlations to serum markers and behavior and longevity of self-harm prior to treatment:

 

Background: : No pharmacological treatments exist for active suicidal ideation (SI), but the glutamatergic
modulator ketamine elicits rapid changes in SI. We developed data-driven subgroups of SI trajectories after
ketamine administration, then evaluated clinical, demographic, and neurobiological factors that might predict SI
response to ketamine.
Methods: : Data were pooled from five clinical ketamine trials. Treatment-resistant inpatients (n = 128) with
DSM-IV-TR-diagnosed major depressive disorder (MDD) or bipolar depression received one subanesthetic
(0.5 mg/kg) ketamine infusion over 40 min. Composite SI variable scores were analyzed using growth mixture
modeling to generate SI response classes, and class membership predictors were evaluated using multinomial
logistic regressions. Putative predictors included demographic variables and various peripheral plasma markers.
Results: : The best-fitting growth mixture model comprised three classes: Non-Responders (29%), Responders
(44%), and Remitters (27%). For Responders and Remitters, maximal improvements were achieved by Day 1.
Improvements in SI occurred independently of improvements in a composite Depressed Mood variable for
Responders, and partially independently for Remitters. Indicators of chronic SI and self-injury were associated
with belonging to the Non-Responder group. Higher levels of baseline plasma interleukin-5 (IL-5) were linked to
Remitters rather than Responders.
Limitations: : Subjects were not selected for active suicidal thoughts; findings only extend to Day 3; and plasma,
rather than CSF, markers were used.
Conclusion: : The results underscore the heterogeneity of SI response to ketamine and its potential independence
from changes in Depressed Mood. Individuals reporting symptoms suggesting a longstanding history of chronic
SI were less likely to respond or remit post-ketamine.

1. Introduction
Suicide poses a serious threat to public health. Worldwide, suicide
accounts for approximately 1 million deaths, and 10 million suicide
attempts are reported annually (World Health Organization, 2014). In
the United States, the national suicide rate has increased by approximately
28% over the last 15 years (Curtin et al., 2016). At the same
time, relatively few interventions for suicide risk exist. While treatments
such as clozapine and lithium have demonstrated effects on
suicidal behavior over weeks to months, these effects may be limited to
specific diagnoses (Cipriani et al., 2005; Griffiths et al., 2014). Currently,
no FDA-approved medications exist to treat suicidal ideation
(SI), leaving those who experience a suicidal crisis with limited options
for a reprieve of symptoms. Consequently, a critical need exists for
rapid-acting treatments that can be used in emergency settings.
A promising off-label agent for this purpose is the rapid-acting antidepressant
ketamine, which past studies have suggested reduces suicidal
thoughts (Diazgranados et al., 2010a; Murrough et al., 2015; Price
et al., 2009). A recent meta-analysis of 167 patients with a range of
mood disorder diagnoses found that ketamine reduced suicidal
thoughts compared to placebo as rapidly as within a few hours, with
effects lasting as long as seven days (Wilkinson et al., 2017). These
results are reinforced by newer findings of reduced active suicidal
ideation post-ketamine compared to a midazolam control(Grunebaum et al., 2018). As the efficacy literature develops in the era
of personalized medicine, two important issues must be addressed.
First, little is known about the acute course of SI following ketamine.
The speed with which antidepressant response occurs, and how much
improvement can be expected on average, has been documented for
single administrations of ketamine (Mathew et al., 2012; Sanacora
et al., 2017); in the limited available literature, researchers have
emulated previous studies examining antidepressant effect, where a
cutoff of 50% improvement demarcated response (Nierenberg and
DeCecco, 2001). Nevertheless, it remains unknown whether this categorization
accurately reflects the phenomenon of suicidal thoughts.
Empirically-derived approaches to the description of SI trajectory after
ketamine may be useful in operationalizing “response” in future clinical
trials.
Second, identifying demographic, clinical, or biological predictors
of SI response to ketamine would allow researchers and clinicians to
determine who is most likely to exhibit an SI response to ketamine. A
broad literature describes clinical and demographic predictors for suicide
risk (Franklin et al., 2017), and a smaller literature connects suicidal
thoughts and behaviors to plasma markers such as brain-derived
neurotrophic factor (BDNF) and cytokines (Bay-Richter et al., 2015;
Falcone et al., 2010; Isung et al., 2012; Serafini et al., 2017; Serafini
et al., 2013). However, no biomarkers have been shown to predict SI/
behavior response to intervention, a finding reinforced by the National
Action Alliance for Suicide Prevention’s Research Prioritization Task
Force’s Portfolio Analysis (National Action Alliance for Suicide
Prevention: Research Prioritization Task Force, 2015). Notably, predictor
analyses have the potential to reveal insights into personalized
treatments for suicidal individuals, as well as the neurobiology of SI
response. With respect to antidepressant response, for example, this
approach yielded the observation that individuals with a family history
of alcohol dependence may be more likely to exhibit an antidepressant
response to ketamine (Krystal et al., 2003; Niciu et al., 2014; PermodaOsip
et al., 2014).
The goals of this study were to elucidate trajectories of SI response
and identify predictors of that response, with the ultimate goal of
adding to the growing literature surrounding ketamine’s specific effects
on SI. In particular, we sought to determine whether the heterogeneous
patterns of change in SI after ketamine administration were better explained
by a model with two or more latent groups of trajectories rather
than a single average trajectory, using secondary analyses from previously
published clinical trials. These classes were then used to evaluate
potential clinical, demographic, and plasma biomarker predictors
of SI response to ketamine in order to generate hypotheses.. Discussion
This analysis used a data-driven approach to characterize SI response
to ketamine. The data were best explained by three trajectory
classes: one with severe average baseline SI and little to no response to
ketamine (Non-Responders), one with moderate average baseline levels
of SI and significant response to ketamine (Responders), and a third
with moderate average baseline levels of SI and complete remission of
SI by two days post-ketamine (Remitters). These findings suggest a
diversity of post-ketamine changes in SI that may not be captured under
traditional methods of categorizing response to treatment.
Furthermore, we found evidence that SI response and antidepressant
response could be distinguished from each other; one subset of participants
experienced improvement in SI that was partially explained by
improvements in Depressed Mood, while the other group’s improvements
in SI occurred independently of antidepressant response. With
regard to predictors of SI response trajectory, preliminary results suggest
the individuals least likely to experience improvement in SI postketamine
were those with the most severe SI and a history of self-injury.
Few plasma markers emerged as predictors of SI response in this study,
highlighting the limitations of connecting SI ratings of response with
biological markers.
The growth mixture modeling approach used here underscored the
heterogeneity of SI response to ketamine, which would not have been
captured by simply calculating the average trajectory. The class assignment
from this approach also differed from the definition of response
(50% reduction in symptoms) traditionally used in the antidepressant
literature, which often focuses on a specific timepoint rather
than the entire symptom trajectory. In comparing classification using a
50% response at Day 1 and Day 3 with the latent trajectory classes, we
found representation of almost every SI class across each responder
group, highlighting the potential limitations of the 50% response approach.
Further study is needed to determine which of these approaches
will prove more fruitful. Complete remission of SI has previously been
used as an outcome measure in clinical trials and in a meta-analysis of
ketamine’s efficacy (Grunebaum et al., 2017; Grunebaum et al., 2018;
Wilkinson et al., 2017), as well as in a study examining the relationship
between SI response to ketamine and changes in nocturnal wakefulness
(Vande Voort et al., 2017). One strength of the present study is that this
data-driven approach provides classifications that directly reflect the
phenomena under study as they are, as opposed to what they should be.
Especially when used in larger samples than the current study, this
approach is particularly promising in its ability to provide a more
nuanced understanding of the nature of SI response to ketamine.
Our results also support the idea that SI response in particular can target. First, it should be noted here that SI classes were not distinguishable
by baseline Depressed Mood scores; patients with the most
severe SI did not differ meaningfully in Depressed Mood scores from
those with the mildest SI. Second, while previous analyses of these data
documented that BMI and family history of alcohol dependence predicted
antidepressant response (Niciu et al., 2014), SI response was not
associated with these variables in the current analysis. Third, the antidepressant
response profiles of the SI classes suggest that SI response
and antidepressant response are not wholly redundant. This aligns with
previous clinical trials and meta-analytic reviews of the literature suggesting
that SI response to ketamine occurs partially independently of
antidepressant response (Grunebaum et al., 2018; Wilkinson et al.,
2017). Nevertheless, this independence did not hold true across both SI
response groups. Specifically, antidepressant and SI response were
clearly linked in Remitters, with depression accounting for half of the
changes in SI; however, in Responders, improvements in SI occurred
independently from improvements in Depressed Mood. These discrepancies
could be related to ketamine’s complex neurobiological
mechanisms or to the potentially low levels of clinical severity observed
in the Remitters.
Interestingly, the current analyses found no baseline demographic
variables that reliably distinguished Responders from Remitters. Some
phenotypic characteristics were uniquely associated with belonging to
the Non-Responder group, suggesting that a long-standing history of
self-injury or SI may indicate resistance to rapid changes in SI.
Relatedly, a recent, randomized clinical trial of repeat-dose ketamine
compared to placebo found that ketamine had no effect on SI in a
sample of patients selected for their longstanding, chronic history of SI
(Ionescu, 2017). These results highlight the importance of patient selection,
particularly for suicide risk. It should be stressed, however, that
SI does not necessarily translate to suicidal attempts or deaths; to our
knowledge, no study has yet linked ketamine with reduced risk of
suicidal behavior. Indeed, in the present study the SI Non-Responders
experienced limited antidepressant effects in response to ketamine, but
may nevertheless have improved on other, unmeasured symptoms that
could provide important benefit and relief. As the ketamine literature
develops, it will be important to identify which clinical symptom profiles
are most likely to have a robust anti-SI and anti-suicidal behavior
response to ketamine and which ones may benefit from other interventions.
While we evaluated a range of potential plasma markers previously
linked to suicidal ideation and behavior, in the present analysis only IL5
was associated with the SI Responder subgroup. Ketamine is known to
have anti-inflammatory effects (Zunszain et al., 2013), but the relationship
between antidepressant response and change in cytokine
levels remains unclear (Park et al., 2017). Cytokines have been linked
to suicidal behavior in the past; a recent meta-analysis found that lower
levels of IL-2 and IL-4, and higher levels of TGFbeta, were associated
with suicidal thoughts and behaviors (Serafini et al., 2013); however, toour knowledge IL-5 has not previously been linked to SI. Given the large
number of comparisons and lack of precedent in the literature, this
result may have been spurious and should be interpreted with caution.
A number of other results may reflect meaningful relationships, but the
high degree of variability—and the associated wide confidence intervals—suggests
that larger sample sizes are needed to better elucidate
the nature of any such relationships (e.g. baseline VEGF: χ2 = 6.13,
p = .05, but OR (95% CI) 13.33 (0.93–200.00)). Somewhat surprisingly,
plasma BDNF levels were not associated with responder class.
Previous studies of bipolar, but not MDD, samples found that plasma
BDNF levels were associated with SI response after ketamine
(Grunebaum, 2017; Grunebaum et al., 2017), suggesting that the mixed
diagnostic composition of this study may explain differences from
previous work. Studies exploring the relationship between BDNF and
antidepressant response to ketamine have also yielded mixed findings
(Haile et al., 2014; Machado-Vieira et al., 2009). Other data-driven
approaches have considered both biological and behavioral variables in
characterizing depression (Drysdale et al., 2017); a similar approach
might prove useful for predicting SI response.
The present study is associated with several strengths as well as
limitations. Strengths include the relatively large sample size of participants
who received ketamine, the use of composite SI scores from
previous exploratory factor analyses as opposed to individual items,
and the combination of clinical and biological markers as potential
predictors of class membership. Limitations include patient selection
methods, as these patients were part of an antidepressant trial and were
not selected for active suicidal thoughts, as well as the exploratory
nature of the analysis. As stated above, suicidal thoughts do not necessarily
equate to suicidal behavior, and class membership would thus
not necessarily correspond with an overall reduction in suicide risk.
Another limitation is that results were collapsed across several clinical
trials with slight variations in study design, and findings were thus only
extended to Day 3 rather than a week after ketamine administration. As
a result, only a subset of the sample could be used for predictive analyses.
In addition, plasma—rather than CSF—markers were used, and
the latter might better indicate underlying biology due to proximity to
the brain, though certain markers such as plasma BDNF may be related
to platelet storage, rather than the brain (Chacón-Fernández et al.,
2016). Comparison of results to trajectories of suicide-specific measures,
such as the Scale for Suicide Ideation (Beck et al., 1979), may also
give further insight into specific SI content. Finally, many clinical
predictors were collected upon hospital admission; future analyses
could use formal assessments, such as the Childhood Traumatic Questionnaire
(Bernstein et al., 1994), assessment of personality disorders,
or diagnoses such as post-traumatic stress disorder (PTSD) as potential
indicators of response.
Despite these limitations, the study demonstrates the utility of a
data-driven approach for characterizing the heterogeneity of SI response
to a rapid-acting intervention. This allows for a more finegrained
analysis of symptoms than would be permitted by traditionalapproaches, such as overall average response or dichotomization at
50% reduction in symptoms. This study identified several findings of
note. These included distinguishing at least three patterns of SI response
to ketamine and finding that subjects who exhibited more severe SI at
baseline were not likely to experience an SI response to ketamine.

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Ketamine Consultants Blog

What is Ketamine?

Ketamine, also known as Ketalar, Ketaset, and Ketanest, is a medication that’s currently FDA approved only as an anesthetic but it’s showing great potential as a treatment for severe depression. In fact, numerous Ketamine Clinics have begun to appear throughout the United States to solve this problem. Depressed patients with stubborn symptoms get relief within hours rather than weeks with conventional anti-depressants. Doctors can only prescribe ketamine for depression off-label because studies are relatively new, but experts are saying that ketamine is one of the biggest breakthroughs in severe depression treatment to come along in decades [1].

Ketamine is a powerful pain reliever and a relaxant, but at higher doses it can also induce unconsciousness and disturbances in how a person experiences sight and sound. In high doses, it can produce hallucinations and delusions and its ability to create strong dissociative experiences have made it popular in the club scene where it’s known as “Special K”. An overdose of ketamine can be fatal and it can be addictive if patients don’t follow their doctor’s prescription guidelines. Currently, ketamine is scheduled as a class III drug and it’s created a lot of controversy among experts who disagree about whether it’s safe for doctors to prescribe it as a treatment for chronic depression. Despite the intrigue and the need for additional research to establish its safety and efficacy, ketamine clinics are now offering infusion treatments to patients all over the United States [1][2][8][9].

Effects of Ketamine

As a street drug, ketamine creates a sense of dissociation and can change a person’s sense of hearing and sight, but for patients with severe depression, ketamine relieves mood problems within hours or sometimes moments for about 85% of those treated. While conventional anti-depressants can take several weeks to take effect, studies have shown that ketamine often improves depression symptoms almost immediately. Patients typically feel better within hours [1][2].

Doctors, dentists, and psychiatrists prescribe ketamine to help their patients achieve a variety of different health goals. Doctors often use ketamine in FDA approved situations such as procedures involving cardiac catheterization, orthopedics, skin grafting, or diagnostics involving the eye, ear, nose, and throat. Surgical dentists may also use ketamine as an anesthesia during tooth extractions. After other treatment options have been attempted and failed, doctors may use ketamine to treat certain types of seizures in patients with status epilepticus [2].

Researchers demonstrated in 2014 that ketamine reduced symptoms of post-traumatic stress disorder in 41 patients and there are other exciting possibilities on the horizon in terms of PTSD treatment. Treatment-resistant depression and substance use disorders could both be treated with this drug, though many medical professionals view ketamine treatment for these mental health issues as controversial [2].

Ketamine for Pain Management (CRPS)

Central Sensitization is a process the central nervous system goes through which causes Complex Regional Pain Syndrome (CRPS/RSD) and other types of chronic pain. In central sensitization the number of NMDA receptors increases which amplifies a patients’ experience of pain. Ketamine interferes with NMDA receptors which puts a damper on pain signaling, providing pain relief and a desensitization to pain for patients affected by CRPS [8].

At low doses, ketamine can relieve chronic pain and potentiate the effects of sedatives. Researchers believe that ketamine could provide an alternative to more addictive painkillers like morphine if the FDA approves it for this use [1][8].

Ketamine for Anesthesia

In the 1960’s doctors used ketamine as an anesthetic on the battlefields in Vietnam because administration lends itself well to use in disaster zones; doctors don’t need electricity, an oxygen supply, or even highly trained staff to give patients ketamine. Since that time, the FDA has only approved ketamine for use as an anesthetic in hospitals and medical settings. As an anesthetic, ketamine doesn’t lower the patient’s breathing rate or blood pressure, which makes it safer than other anesthesia options. It’s for this reason that veterinarians use ketamine more than any other type of anesthetic for surgery on animals [1][2].

Ketamine for Depression

Depression is a major issue in the United States and though there are many anti-depressants on the market, about one-third of patients don’t experience any relief from their symptoms using the drugs that are currently available. Ketamine acts on depression by rebalancing a different set of neurotransmitters and receptors (the NMDA/glutamate receptors and GABA receptors) than the old-school Selective Serotonin Reuptake Inhibitors (which function by blocking reabsorption of serotonin). By blocking glutamate receptors in the brain, the majority of patients with ‘Treatment Resistant Depression’ are able to experience relief from their symptoms using ketamine [1].

Even though ketamine has yet to be approved by the FDA for use in treating depression, patients are flocking to ketamine clinics to receive the treatment off-label. It provides fast relief, which is vitally important in cases where patients feel suicidal and for depressed patients who have tried all of the other anti-depressants available with no luck, ketamine offers new hope. Infusion treatments take about 1 hour at a clinic, but the results are long-lasting with most patients returning only once every one to two weeks over a specified period of time. The treatment is expensive, but the results are promising enough that patients are willing to pay out-of-pocket for it [5][8][9].

The FDA hasn’t yet approved ketamine for use as an anti-depressant, but both Esketamine and Rapastinel (developed by Johnson & Johnson and Allergan respectively) have been fast-tracked as breakthrough drugs. The demand for these two medications is projected to grow rapidly in the coming years.  Still, doctors can only prescribe ketamine for depression off-label since ketamine has been FDA approved for use as an anesthetic, not as an anti-depressant. Researchers have cautioned doctors to avoid over-prescribing this drug because the long-term health and well-being of patients could be at risk. Ketamine has a high potential for abuse, after all and experts claim that the evidence does not exist to prove that this drug is safe [1][2][6].

Ketamine as Drugs of Abuse

Ketamine is abused as a recreational drug and it has effects that are similar to Phenylcyclidine (PCP), LSD, dextromethorphan (DXM) and nitrous oxide (laughing gas). Ketamine is a dissociative anesthetic that can alter one’s sense of sight and sound and also produce profound relaxation, hallucinations, and delusions for about an hour. The effects of the drug come on almost immediately. It has been used as a rape drug that can render women unable to speak or to move [1][2].

People who abuse ketamine have developed serious bladder and kidney problems such as ulcerative cystitis, stomach issues, and memory loss. In fact, street users even risk developing depression as a result of addiction and dependence on the drug [2].

How is Ketamine used for depression?

Doctors may prescribe ketamine by itself or in tandem with other anti-depressants [3]. Many experts on depression recommend that ketamine only be used as a short-term depression treatment option while other anti-depressants are taking effect. Though there are convenient ketamine nasal sprays in research and development by Johnson & Johnson, the high-potential for abuse of this drug has made many doctors and psychiatrists wary of using this drug to treat depression long-term. Further, some medical organizations are concerned that the long-term effects of chronic ketamine use is not well-understood. According to these organizations, more research is needed to establish the safety of this drug [1][2][6].

Promising Remedy for ‘Treatment Resistant Depressions’

Thomas Insel, the director of the National Institute of Mental Health says, “Recent data suggest that ketamine, given intravenously might be the most important breakthrough anti-depressant in decades.” Conventional anti-depressants aren’t able to help about one-third of patients with major depression, but new ketamine drugs such as esketamine (in development by Johnson and Johnson) may offer new hope. Infusion therapies available through ketamine clinics across the United States report a high success rate of 60% to 70% treating Treatment Resistant Depression as well as Major Depression with risk of suicide [1][3][5][6].

Fast-Tracked by FDA

Two drugs, Johnson & Johnson’s Esketamine and Allergan’s Rapastinel, were both upgraded to ‘fast-track’ status by the FDA in 2016 due to their importance and promise in treating treatment resistant depression.

Depression is the leading cause of disability in the world and currently, 12% of Americans (about 29 million people) are taking anti-depressant medications. The suicide rate is higher now than it has been in over 30 years. And about one-third of depressed Americans don’t experience relief taking conventional anti-depressants. In the interest of capitalizing on the market value of depression, which is projected to almost double by the year 2024, the FDA will review the use of these new ketamine-based depression drugs in 2018 and 2019, allowing Johnson & Johnson and Allergan to go through an abbreviated version of the normally lengthy FDA approval process for new drug therapies [5][6].

Experimental Trials

Drug trials have shown that 60% to 70% of patients with Treatment-Resistant Depression have been responsive to ketamine. Esketamine, a nasal spray developed by Johnson & Johnson, is in Phase III clinical trials right now. They are expected to receive FDA approval later in 2018, and once that happens, it will open doors for administering ketamine outside a clinic setting.

Rapastinel, which was developed by Allergan, is out of Phase III and awaiting FDA approval. The drug can be administered within 30 seconds intravenously and Allergan is working to develop an oral version of the drug as well [2][3][5].

How Ketamine Therapy Works

Ketamine therapy is usually performed at a ketamine clinic. Patients receive an intravenous infusion of the drug with relief from depression symptoms that can last for several weeks.

Ketamine Infusion or Intravenous Therapy (Infusion Process)

Ketamine can be injected directly into muscle tissue or it can be given intravenously. Researchers for Johnson & Johnson have also recently developed new treatment protocol called Esketamine that’s awaiting FDA approval. Using Esketamine, patients will be able to self-administer the drug as a nasal mist [2][3].

Patients must receive a referral from a doctor to go to a ketamine clinic. There, patients can receive an intravenous infusion of ketamine. On the first visit, a doctor will assess the patient before hooking the patient up to a ketamine IV. Patients then experience a variety of sensations during the infusion and for up to 2 hours following the infusion. Many patients report feeling a sense of deep relaxation and the ability to reflect on past traumas and anxieties calmly [7][9].

How does it work?

Researchers have demonstrated that a deficiency in certain vital connections between certain neurons in the brain may cause depression. Ketamine works as an NMDA receptor antagonist (NMDA is a glutamate receptor also known as N-methyl-d-aspartate) and an AMPA receptor stimulator. As such, ketamine stimulates the development of new receptors and synapses in the brain which helps patients regulate their mood, sleep better, and experience better focus [2][8].

Ketamine works by interfering with and rebalancing the glutamatergic system (glutamate and GABA) to stimulate new synaptic connections, better memory, and brain plasticity [8]. During ketamine infusions, patients may feel capable of exploring traumatic memories more calmly to reframe the past or they may feel a pleasant sensation of relaxation or floating [7]. Effects from an infusion can last for up to a week or two.

Intranasal ketamine formulas work by binding to a receptor called N-methyl-d-aspartate. In the brain, ketamine blocks the neurotransmitter glutamate which causes communication between the conscious mind and other parts of the mind (such as mood centers) to be blocked. In low doses, it relieves depression, but in higher doses, it can cause patients to feel an uncomfortable sense of dissociation from the body similar to a near death experience [2][3][4].

While most anti-depressant medications must build up in the body over the course of several weeks in order to have an effect, ketamine’s mood-altering benefits happen as the drug leaves the body. Researchers don’t know why this is the case, or even exactly how the drug achieves its strong anti-depressant effects but the fact is, ketamine works quickly to relieve depression symptoms in 85% of patients who are resistant to other forms of therapy [1]. Standard anti-depressants target the neurotransmitters serotonin, norepinephrine, and dopamine, but ketamine is different. Ketamine blocks glutamate and stimulates synaptic plasticity or the ability of the brain to change and grow [5].

Doctors don’t fully understand how ketamine works or the potential effects that patients may experience from taking tiny doses of this drug over and over again. What is known is that recreational users can suffer ulcerative cystitis or cognitive issues as a result of prolonged use [5].

Ketamine Infusion Dose/Dosage

Researchers are working to find the perfect ketamine dose for depression patients. The risk of overdosing on this drug is high for the recreational user because there is only a slight difference between a dosage that leads to desirable effects and one that can cause a lethal overdose. The goal for researchers is to find an exact dosage that’s high enough to get rid of symptoms of depression but low enough to prevent patients from experiencing hearing and sight disturbances as well as the other negative effects from the drug [1][2][9]. Ketamine produces only temporary effects on severe depression. Patients must continue to return to the clinic for infusions every few weeks to keep their depression symptoms in check [5].

Ketamine therapy cost? Is ketamine therapy covered by insurance?

Ketamine therapy is rarely covered by insurance and it’s pricey. Patients typically pay between $400 and $800 per infusion. On a bi-weekly schedule for ketamine treatments, patients can expect to pay about $15,000 out-of-pocket annually [5].

Ketamine Infusion Side-Effects

Ketamine use can cause a variety of side effects including:

  • Extreme fatigue or exhaustion
  • Nervousness or restlessness
  • Sweating
  • Amnesia
  • Puffy or swollen eyelids, lips, or tongue
  • Hives, itching, or rash
  • Delusions
  • Difficulty thinking or learning
  • Loss of appetite
  • Nausea
  • Fast heartbeat, slow heartbeat, irregular heartbeat
  • Dizziness, fainting
  • Difficulty swallowing
  • Confusion
  • Convulsions
  • Difficulty breathing
  • Chest pain or discomfort
  • Blurry vision
  • Inability to control eye movement
  • Slurred speech
  • Difficulty urinating, frequent urination, cloudy or bloody urine
  • Paleness, bluish lips, skin, or fingernails
  • Increased pressure in the brain and the eyes [1][2]
  • What is Ketamine | 703-844-0184 | Ketamine therapy for PTSD | IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |
    What is Ketamine | 703-844-0184 | Ketamine therapy for PTSD | IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |

    Ketamine for Depression: Does it work?

    What is Ketamine?

    Ketamine, also known as Ketalar, Ketaset, and Ketanest, is a medication that’s currently FDA approved only as an anesthetic but it’s showing great potential as a treatment for severe depression. In fact, numerous Ketamine Clinics have begun to appear throughout the United States to solve this problem. Depressed patients with stubborn symptoms get relief within hours rather than weeks with conventional anti-depressants. Doctors can only prescribe ketamine for depression off-label because studies are relatively new, but experts are saying that ketamine is one of the biggest breakthroughs in severe depression treatment to come along in decades [1].

    Ketamine is a powerful pain reliever and a relaxant, but at higher doses it can also induce unconsciousness and disturbances in how a person experiences sight and sound. In high doses, it can produce hallucinations and delusions and its ability to create strong dissociative experiences have made it popular in the club scene where it’s known as “Special K”. An overdose of ketamine can be fatal and it can be addictive if patients don’t follow their doctor’s prescription guidelines. Currently, ketamine is scheduled as a class III drug and it’s created a lot of controversy among experts who disagree about whether it’s safe for doctors to prescribe it as a treatment for chronic depression. Despite the intrigue and the need for additional research to establish its safety and efficacy, ketamine clinics are now offering infusion treatments to patients all over the United States [1][2][8][9].

    Effects of Ketamine

    As a street drug, ketamine creates a sense of dissociation and can change a person’s sense of hearing and sight, but for patients with severe depression, ketamine relieves mood problems within hours or sometimes moments for about 85% of those treated. While conventional anti-depressants can take several weeks to take effect, studies have shown that ketamine often improves depression symptoms almost immediately. Patients typically feel better within hours [1][2].

    Doctors, dentists, and psychiatrists prescribe ketamine to help their patients achieve a variety of different health goals. Doctors often use ketamine in FDA approved situations such as procedures involving cardiac catheterization, orthopedics, skin grafting, or diagnostics involving the eye, ear, nose, and throat. Surgical dentists may also use ketamine as an anesthesia during tooth extractions. After other treatment options have been attempted and failed, doctors may use ketamine to treat certain types of seizures in patients with status epilepticus [2].

    Researchers demonstrated in 2014 that ketamine reduced symptoms of post-traumatic stress disorder in 41 patients and there are other exciting possibilities on the horizon in terms of PTSD treatment. Treatment-resistant depression and substance use disorders could both be treated with this drug, though many medical professionals view ketamine treatment for these mental health issues as controversial [2].

    Ketamine for Pain Management (CRPS)

    Central Sensitization is a process the central nervous system goes through which causes Complex Regional Pain Syndrome (CRPS/RSD) and other types of chronic pain. In central sensitization the number of NMDA receptors increases which amplifies a patients’ experience of pain. Ketamine interferes with NMDA receptors which puts a damper on pain signaling, providing pain relief and a desensitization to pain for patients affected by CRPS [8].

    At low doses, ketamine can relieve chronic pain and potentiate the effects of sedatives. Researchers believe that ketamine could provide an alternative to more addictive painkillers like morphine if the FDA approves it for this use [1][8].

    Ketamine for Anesthesia

    In the 1960’s doctors used ketamine as an anesthetic on the battlefields in Vietnam because administration lends itself well to use in disaster zones; doctors don’t need electricity, an oxygen supply, or even highly trained staff to give patients ketamine. Since that time, the FDA has only approved ketamine for use as an anesthetic in hospitals and medical settings. As an anesthetic, ketamine doesn’t lower the patient’s breathing rate or blood pressure, which makes it safer than other anesthesia options. It’s for this reason that veterinarians use ketamine more than any other type of anesthetic for surgery on animals [1][2].

    Ketamine for Depression

    Depression is a major issue in the United States and though there are many anti-depressants on the market, about one-third of patients don’t experience any relief from their symptoms using the drugs that are currently available. Ketamine acts on depression by rebalancing a different set of neurotransmitters and receptors (the NMDA/glutamate receptors and GABA receptors) than the old-school Selective Serotonin Reuptake Inhibitors (which function by blocking reabsorption of serotonin). By blocking glutamate receptors in the brain, the majority of patients with ‘Treatment Resistant Depression’ are able to experience relief from their symptoms using ketamine [1].

    Even though ketamine has yet to be approved by the FDA for use in treating depression, patients are flocking to ketamine clinics to receive the treatment off-label. It provides fast relief, which is vitally important in cases where patients feel suicidal and for depressed patients who have tried all of the other anti-depressants available with no luck, ketamine offers new hope. Infusion treatments take about 1 hour at a clinic, but the results are long-lasting with most patients returning only once every one to two weeks over a specified period of time. The treatment is expensive, but the results are promising enough that patients are willing to pay out-of-pocket for it [5][8][9].

    The FDA hasn’t yet approved ketamine for use as an anti-depressant, but both Esketamine and Rapastinel (developed by Johnson & Johnson and Allergan respectively) have been fast-tracked as breakthrough drugs. The demand for these two medications is projected to grow rapidly in the coming years.  Still, doctors can only prescribe ketamine for depression off-label since ketamine has been FDA approved for use as an anesthetic, not as an anti-depressant. Researchers have cautioned doctors to avoid over-prescribing this drug because the long-term health and well-being of patients could be at risk. Ketamine has a high potential for abuse, after all and experts claim that the evidence does not exist to prove that this drug is safe [1][2][6].

    Ketamine as Drugs of Abuse

    Ketamine is abused as a recreational drug and it has effects that are similar to Phenylcyclidine (PCP), LSD, dextromethorphan (DXM) and nitrous oxide (laughing gas). Ketamine is a dissociative anesthetic that can alter one’s sense of sight and sound and also produce profound relaxation, hallucinations, and delusions for about an hour. The effects of the drug come on almost immediately. It has been used as a rape drug that can render women unable to speak or to move [1][2].

    People who abuse ketamine have developed serious bladder and kidney problems such as ulcerative cystitis, stomach issues, and memory loss. In fact, street users even risk developing depression as a result of addiction and dependence on the drug [2].

    How is Ketamine used for depression?

    Doctors may prescribe ketamine by itself or in tandem with other anti-depressants [3]. Many experts on depression recommend that ketamine only be used as a short-term depression treatment option while other anti-depressants are taking effect. Though there are convenient ketamine nasal sprays in research and development by Johnson & Johnson, the high-potential for abuse of this drug has made many doctors and psychiatrists wary of using this drug to treat depression long-term. Further, some medical organizations are concerned that the long-term effects of chronic ketamine use is not well-understood. According to these organizations, more research is needed to establish the safety of this drug [1][2][6].

    Promising Remedy for ‘Treatment Resistant Depressions’

    Thomas Insel, the director of the National Institute of Mental Health says, “Recent data suggest that ketamine, given intravenously might be the most important breakthrough anti-depressant in decades.” Conventional anti-depressants aren’t able to help about one-third of patients with major depression, but new ketamine drugs such as esketamine (in development by Johnson and Johnson) may offer new hope. Infusion therapies available through ketamine clinics across the United States report a high success rate of 60% to 70% treating Treatment Resistant Depression as well as Major Depression with risk of suicide [1][3][5][6].

    Fast-Tracked by FDA

    Two drugs, Johnson & Johnson’s Esketamine and Allergan’s Rapastinel, were both upgraded to ‘fast-track’ status by the FDA in 2016 due to their importance and promise in treating treatment resistant depression.

    Depression is the leading cause of disability in the world and currently, 12% of Americans (about 29 million people) are taking anti-depressant medications. The suicide rate is higher now than it has been in over 30 years. And about one-third of depressed Americans don’t experience relief taking conventional anti-depressants. In the interest of capitalizing on the market value of depression, which is projected to almost double by the year 2024, the FDA will review the use of these new ketamine-based depression drugs in 2018 and 2019, allowing Johnson & Johnson and Allergan to go through an abbreviated version of the normally lengthy FDA approval process for new drug therapies [5][6].

    Experimental Trials

    Drug trials have shown that 60% to 70% of patients with Treatment-Resistant Depression have been responsive to ketamine. Esketamine, a nasal spray developed by Johnson & Johnson, is in Phase III clinical trials right now. They are expected to receive FDA approval later in 2018, and once that happens, it will open doors for administering ketamine outside a clinic setting.

    Rapastinel, which was developed by Allergan, is out of Phase III and awaiting FDA approval. The drug can be administered within 30 seconds intravenously and Allergan is working to develop an oral version of the drug as well [2][3][5].

    How Ketamine Therapy Works

    Ketamine therapy is usually performed at a ketamine clinic. Patients receive an intravenous infusion of the drug with relief from depression symptoms that can last for several weeks.

    Ketamine Infusion or Intravenous Therapy (Infusion Process)

    Ketamine can be injected directly into muscle tissue or it can be given intravenously. Researchers for Johnson & Johnson have also recently developed new treatment protocol called Esketamine that’s awaiting FDA approval. Using Esketamine, patients will be able to self-administer the drug as a nasal mist [2][3].

    Patients must receive a referral from a doctor to go to a ketamine clinic. There, patients can receive an intravenous infusion of ketamine. On the first visit, a doctor will assess the patient before hooking the patient up to a ketamine IV. Patients then experience a variety of sensations during the infusion and for up to 2 hours following the infusion. Many patients report feeling a sense of deep relaxation and the ability to reflect on past traumas and anxieties calmly [7][9].

    How does it work?

    Researchers have demonstrated that a deficiency in certain vital connections between certain neurons in the brain may cause depression. Ketamine works as an NMDA receptor antagonist (NMDA is a glutamate receptor also known as N-methyl-d-aspartate) and an AMPA receptor stimulator. As such, ketamine stimulates the development of new receptors and synapses in the brain which helps patients regulate their mood, sleep better, and experience better focus [2][8].

    Ketamine works by interfering with and rebalancing the glutamatergic system (glutamate and GABA) to stimulate new synaptic connections, better memory, and brain plasticity [8]. During ketamine infusions, patients may feel capable of exploring traumatic memories more calmly to reframe the past or they may feel a pleasant sensation of relaxation or floating [7]. Effects from an infusion can last for up to a week or two.

    Intranasal ketamine formulas work by binding to a receptor called N-methyl-d-aspartate. In the brain, ketamine blocks the neurotransmitter glutamate which causes communication between the conscious mind and other parts of the mind (such as mood centers) to be blocked. In low doses, it relieves depression, but in higher doses, it can cause patients to feel an uncomfortable sense of dissociation from the body similar to a near death experience [2][3][4].

    While most anti-depressant medications must build up in the body over the course of several weeks in order to have an effect, ketamine’s mood-altering benefits happen as the drug leaves the body. Researchers don’t know why this is the case, or even exactly how the drug achieves its strong anti-depressant effects but the fact is, ketamine works quickly to relieve depression symptoms in 85% of patients who are resistant to other forms of therapy [1]. Standard anti-depressants target the neurotransmitters serotonin, norepinephrine, and dopamine, but ketamine is different. Ketamine blocks glutamate and stimulates synaptic plasticity or the ability of the brain to change and grow [5].

    Doctors don’t fully understand how ketamine works or the potential effects that patients may experience from taking tiny doses of this drug over and over again. What is known is that recreational users can suffer ulcerative cystitis or cognitive issues as a result of prolonged use [5].

    Ketamine Infusion Dose/Dosage

    Researchers are working to find the perfect ketamine dose for depression patients. The risk of overdosing on this drug is high for the recreational user because there is only a slight difference between a dosage that leads to desirable effects and one that can cause a lethal overdose. The goal for researchers is to find an exact dosage that’s high enough to get rid of symptoms of depression but low enough to prevent patients from experiencing hearing and sight disturbances as well as the other negative effects from the drug [1][2][9]. Ketamine produces only temporary effects on severe depression. Patients must continue to return to the clinic for infusions every few weeks to keep their depression symptoms in check [5].

    Ketamine therapy cost? Is ketamine therapy covered by insurance?

    Ketamine therapy is rarely covered by insurance and it’s pricey. Patients typically pay between $400 and $800 per infusion. On a bi-weekly schedule for ketamine treatments, patients can expect to pay about $15,000 out-of-pocket annually [5].

    Ketamine Infusion Side-Effects

    Ketamine use can cause a variety of side effects including:

    • Extreme fatigue or exhaustion
    • Nervousness or restlessness
    • Sweating
    • Amnesia
    • Puffy or swollen eyelids, lips, or tongue
    • Hives, itching, or rash
    • Delusions
    • Difficulty thinking or learning
    • Loss of appetite
    • Nausea
    • Fast heartbeat, slow heartbeat, irregular heartbeat
    • Dizziness, fainting
    • Difficulty swallowing
    • Confusion
    • Convulsions
    • Difficulty breathing
    • Chest pain or discomfort
    • Blurry vision
    • Inability to control eye movement
    • Slurred speech
    • Difficulty urinating, frequent urination, cloudy or bloody urine
    • Paleness, bluish lips, skin, or fingernails
    • Increased pressure in the brain and the eyes [1][2]

    Where can you get ketamine therapy?

    Off-label ketamine infusion therapy is an unregulated business that has gotten the attention of both clinicians and medical organizations. There are currently ketamine clinics in a number of cities throughout the United States [10].

    Actify Neurotherapies

    1-888-566-8774

    With locations in 9 different states including:

    • Maryland
    • Pennsylvania
    • Colorado
    • New York
    • New Jersey
    • Florida
    • North Carolina
    • California

    Portland Ketamine Clinic

    503-207-4992

    Ketamine Clinic of West Texas

    432-704-2133

    Northwest Ketamine Clinics

    425-214-1495

    Ketamine Clinics of Alabama

    334-699-8231

    Sierra Ketamine Clinics

    775-276-5454

    Ketamine Clinics of Los Angeles

    424-343-8889

    Is ketamine therapy addictive?

    Patients who use ketamine long-term may develop a tolerance and addiction to the drug over time. In medical settings, ketamine is safe to use because the dosage is carefully calibrated and monitored, but there is a high potential for abuse when patients use ketamine recreationally as  a street drug. If patients don’t follow their doctor’s prescription for ketamine it can have extremely negative mental and physical effects particularly on the brain and bladder [2].

    Ketamine-Based Drugs in Late Stage Trials

    Both Rapastinel and Esketamine are ketamine-based drugs that have been ‘fast-tracked’ by the FDA because the FDA has identified them as “breakthrough drugs” [5].

    Rapastinel

    Allergan developed Rapastinel, a ketamine drug that can be administered in 30 seconds intravenously. It works on the same receptors as ketamine, but it doesn’t produce hallucinations. An oral version of Rapastinel is also in development. The FDA considers Rapastinel to be a “breakthrough drug” which means that Allergan can speed through the lengthy drug approval process and get the drug to market by 2019 [5].

    Esketamine

    The FDA has designated Esketamine a “breakthrough therapy”, which means that the drug developers, a subsidiary of Johnson & Johnson, can speed through the lengthy drug approval process to get the drug on the market more quickly. Esketamine can be administered like a nasal decongestant, which would make it more convenient than intravenous therapy for depression patients. Experts feel that Esketemine would be most appropriately used as an adjunct therapy in combination with other anti-depressant medications, not as a standalone treatment for depression [5][6].

    According to one recent study, when administered in combination with other oral antidepressants, Esketamine reduced patients’ depression symptoms more than oral anti-depressants alone. The anti-depressant effects of using a conventional anti-depressant in conjunction with Esketamine occurred within only about 1 week. When used alone, Esketamine effects seem to last 1 to 7 days in most patients. Esketamine is in Phase 3 testing with the FDA for use as a drug for ‘Treatment Resistant Depression’ and Major Depression with risk of suicide. Johnson & Johnson will file for FDA approval for this drug as a depression treatment in 2018 [3][6].

    Risks of Ketamine Abuse

    Ketamine abuse is a serious problem. It is possible to become addicted to ketamine. Patients may begin to need higher doses of the drug in order to experience the positive effects. An overdose of ketamine can be deadly. The effects of using ketamine chronically over a long period of time have not been established, but recreational drug users who have used ketamine long-term have developed ulcerative cystitis as well as cognitive issues [1][2].

    The Ketamine Controversy

    While ketamine can literally save lives by relieving the symptoms of major, Treatment Resistant Depression, including the risk of suicide, research still has not established the safety of ketamine for long-term use. The lethal dose of ketamine is only slightly higher than the therapeutic dose and its addictive properties mean that it could cause depressed patients more problems than it solves. Ketamine clinics have popped up all over the country to cash in on the high demand for a depression treatment that really works, but the research hasn’t demonstrated that this drug is safe for chronic use. So this is an instance where the buyer needs to beware. The FDA has fast-tracked these drugs because it’s constituents see market potential, but important research still needs to be done on this drug to demonstrate it’s safety and long-term efficacy.

    Resources:

    [1] Collins, S. (2005-2018). What you need to know about ketamine’s effects. Retrieved April 3, 2018 from https://www.webmd.com/depression/features/what-does-ketamine-do-your-brain#1

    [2] Davis, K. (2017). What are the uses of ketamine? Retrieved April 3, 2018 from https://www.medicalnewstoday.com/articles/302663.php
    [3] Pagliarulo, N. (2018). J& J builds case for ketamine-based depression drug. Retrieved April 3, 2018 from https://www.biopharmadive.com/news/jj-builds-case-for-ketamine-based-depression-drug/513866/
    [4] No Author (2007-2018). Special K and X. Retrieved April 3, 2018 from http://goaskalice.columbia.edu/answered-questions/special-k-and-x
    [5] Oaklander, M. (2017). New Hope for Depression. Retrieved April 3, 2018 from http://time.com/4876098/new-hope-for-depression/
    [6] Oberhaus, D. (2017). Ketamine Nasal Spray Will Totally Change the Market for Antidepressant Drugs. Retrieved April 3, 2018 from https://tonic.vice.com/en_us/article/wjxd9b/ketamine-nasal-spray-will-totally-change-the-market-for-antidepressant-drugs
    Source: https://www.depressionalliance.org/ketamine-for-depression/
    _________________________________________

    What is Ketamine | 703-844-0184 | Ketamine therapy for PTSD | IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |
    What is Ketamine | 703-844-0184 | Ketamine therapy for PTSD | IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |

    Learn How Ketamine Can Treat Post Traumatic Stress Disorder ICD 10

    For decades, ketamine has been used as a medicinal intervention for treating depression, anxiety, mood disorders, and post-traumatic stress disorder (PTSD). While most ketamine advocates recognize its therapeutic potential for treating depression, the many benefits available to those suffering from PTSD are less understood.

    Do you or a loved one suffer from post-traumatic stress disorder? If so, ketamine infusion therapy may be able to help alleviate your symptoms and provide the relief you need. However, public knowledge about medicinal ketamine is lacking. In this article, we go over everything there is to know about ketamine for treating PTSD.

    PTSD 101: What You Need to Know

    Post-traumatic stress disorder has a medical diagnostic code of ICD-10, which is the code used for reimbursing treatment through your insurance provider. PTSD, unlike other mental illnesses, is characterized by its triggering from a single or series of traumatic events. This explains why PTSD is common among military veterans and first responders.

    According to a summary article from Mayo Clinic, PTSD is a mental health condition triggered by a terrifying experience. The sufferer subsequently experiences flashbacks, night terrors, and anxiety attacks that they cannot control as a result of the event. It takes a significant amount of time, therapy, and self-care to overcome the trauma of PTSD.

    There is no known cure for PTSD. However, many experimental medicinal interventions are breaking ground when it comes to finding a cure. For example, the psychoactive drugs MDMA and ketamine have both been studied for their potential to alleviate the negative effects of PTSD.

    Ketamine Infusion Therapy

    Since the early 2000s, ketamine has gained popularity among medical providers for its application in infusion therapies. In recent years, clinics all around the world have embraced the healing power of ketamine by offering ketamine infusion therapy. This unique therapy involves one or more intravenous injections of ketamine under the supervision of an anesthesiologist.

    What Is Ketamine?

    Although ketamine has garnered a reputation as a party drug, its primary value is in its ability to provide fast-acting and potent relief for those with chronic pain issues. Ketamine was first synthesized in the 1960s and was later adopted as an anesthetic in veterinary medicine by the end of the decade. However, use in humans was initially sparse.

    Ketamine is both an analgesic and anesthetic drug, which means its primary quality is to reduce or prevent pain. This makes ketamine highly effective for treating major depressive disorder, chronic back pain, and PTSD.

    Ketamine and PTSD

    What is Ketamine | 703-844-0184 | Ketamine therapy for PTSD | IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |
    What is Ketamine | 703-844-0184 | Ketamine therapy for PTSD | IV Ketamine for depression, PTSD, bipolar disorder, and others | Ketamine therapy for depression | 703-844-0184 | Fairfax, Va 22304 |

    Ketamine infusion clinics across the United States are now offering specialty treatments for those suffering from PTSD. For example, the renowned Ketamine Clinics of Los Angeles has treated hundreds of PTSD patients over the years. Led by Dr. Steven Mandel, M.D., the team at Ketamine Clinics of LA has a proven track record of helping relieve the pain of PTSD.

    An increasing amount of scientific research has proven that ketamine is effective in treating PTSD. Most notably, a breakthrough 2014 study in JAMA Psychiatry discovered that a single intravenous subanesthetic dose of ketamine resulted in “significant and rapid reduction in PTSD symptom severity.”

    Over the past few years, many articles and news reports have heralded ketamine as a potential wonder drug for treating PTSD. A recent article published by Medscape discussed how a team of researchers at the Icahn School of Medicine at Mount Sinai in New York City used ketamine to fight depressive symptoms in patients with PTSD and severe depression.

    Is Ketamine Safe for PTSD?

    There is no doubt that ketamine is a novel treatment for many PTSD sufferers. Since it is a relatively new medicinal intervention, there is some skepticism within the medical community regarding whether it is safe for human use. However, many of these doubts have been quelled over the years thanks to numerous studies and experiences that have proven its safety.

    The most compelling evidence suggesting that ketamine infusion is safe in humans comes from a 2014 clinical study. This study managed to safely administer low doses of ketamine to treat neuropathic pain states in adults. Over the two-week monitoring period, the patients exhibited numerous benefits while experiencing only marginal or negligible side effects.

    It should be noted that ketamine is not safe if taken recreationally. Since its inception, ketamine has gained a reputation as a party drug for its ability to induce dissociative states and euphoria. However, ketamine is not safe to use unless administered by a licensed physician. It is possible to overdose on ketamine, and the side effects of using high doses of ketamine can be fatal.

    Ketamine: A PTSD Prevention Tool?

    Interestingly, ketamine has found success as a tool for preventing the onset of PTSD. In one case, a research team gave a family of mice a low dose of ketamine before exposing them to electric shocks. Usually, mice exhibit symptoms of PTSD after being exposed to such a severe stressor. However, the mice that were given ketamine did not exhibit these symptoms at all.

    Typically, traumatized mice freeze up when they are placed back in the cage in which they were shocked. In this case, the mice who were sedated with ketamine did not freeze when placed in the cage or froze for a significantly reduced duration. This led the research team to believe that ketamine may have value in both preventing and treating PTSD in humans.

    Is Ketamine Right for You?

    Ketamine may be an appropriate treatment option for you if you have treatment-resistant PTSD. In other words, you must first be diagnosed with PTSD and have sought the traditional frontline treatments for the condition before considering ketamine infusion therapy.

    We recommend speaking with your doctor about your PTSD symptoms and the appropriate therapies available to you. Usually, SSRIs or benzodiazepine pharmaceutical drugs, in conjunction with cognitive behavioral therapy (CBT) is the first method of treatment. However, if you do not respond well to this treatment option you should consider seeking ketamine therapy.

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