Category Archives: Depression

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

What Makes the Ketamine-Based Drug for Depression So Different?

On Tuesday (March 5), the U.S. Food and Drug Administration (FDA) approved a ketamine-like nasal spray for patients with depression who haven’t responded to other treatments.

But what makes this newly approved treatment so different?

The drug, called Spravato and made by Janssen Pharmaceuticals, contains the active ingredient esketamine. This substance has the same molecular formula as ketamine but a different chemical structure. (In other words, it contains the same type and number of elements but in a different configuration.) Ketamine is typically used as an anesthetic, but it’s also been used as an illicit party drug.

One reason experts are excited about the nasal spray is that its effects can be seen within several hours to days. Other antidepressants, meanwhile, can take weeks to start working

Antidepressants work by regrowing brain cells and the connections between them, and ketamine appears to have the same effects, said David Olson, an assistant professor of chemistry, biochemistry and molecular medicine at the University of California, Davis. But, these effects likely start much sooner than with other antidepressants, he said.

Still, it’s not entirely clear how the drug works.

Ketamine-like drugs are “dirty”, meaning they likely hit a variety of targets in the brain, Olson told Live Science. “There are a lot of very interesting hypotheses out there, [and] many of them are probably partially valid.”

One idea is that ketamine treats depression by blocking a neurotransmitter called glutamate from binding to the NMDA receptor, and stopping signals from cascading across the brain, Dr. Alan Schatzberg, a professor of psychiatry and behavioral sciences at the Stanford University School of Medicine, told Live Science.

Glutamate is a chemical that brain cells use to send signals to other brain cells. But high levels of it can cause over-excitement in the brain, which can, in turn, damage brain cells.

A more controversial idea is that ketamine binds to opioid receptors, causing a release of naturally occurring opioids in the body. Schatzberg and his team published a small study on this last summer in which they gave patients with depression ketamine twice — once after receiving an opioid-blocking drug, and once after receiving a placebo in place of the opioid blocker. The two treatments took place about a month apart, and neither the participants nor the researchers knew whether patients received the opioid blocker or the placebo. The study found that the patients responded well to the ketamine treatment if they didn’t receive the opioid-blocking drug, but ketamine had no effect on those that did, suggesting an opioid-like role.

This hypothesis has some experts concerned about ketamine-based drugs as a depression treatment.

“My concern about this compound is that it is a disguised form of opiates,” said Dr. Mark George, a distinguished professor of psychiatry, radiology and neurosciences at the Medical University of South Carolina. While George said he is “overjoyed” for the prospect of a new treatment option, “I’m alarmed that there is pretty clear evidence [that] the way ketamine works is through the opioid system.”

If this is the mechanism that ketamine acts through to treat depression, its effects won’t last and people might develop a tolerance to the drug, possibly even becoming addicted, George told Live Science. But if its antidepressant effects come from other mechanisms, such as blocking the NMDA receptor, then “that’s good,” he said.

Olson, however, said that he is less convinced by the opioid hypothesis and thinks more work needs to be done before ringing the alarm bells.

What’s more, the new drug will see limited use. The medication comes with a risk of sedation and dissociation, such as difficulty with judgment, attention and thinking. Because of that, the nasal spray was approved to be used only under a “restricted distribution system,” according to a statement from the FDA.

This means that only patients with severe depression who haven’t responded to at least two antidepressant treatments can receive the drug. In addition, the treatment is administered only in doctor’s offices, and patients must stay in the office and be monitored for several hours after receiving the treatment.

Ultimately, despite some potential problems with the newly approved drug, experts are hopeful it will come through strong.

“I think that the FDA approval of ketamine is a huge landmark in the history of treating neuropsychiatric diseases,” Olson said. “Ketamine really represents a leap forward in terms of new ideas for attacking depression and related neuropsychiatric diseases.”



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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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Listening to ketamine

The fast-acting drug offers a new way to treat depression and fathom its origins. Recent approval of a nasal spray promises to expand access, but much remains unknown about long-term use and the potential for abuse.

t 32, Raquel Bennett was looking for a reason to live. She’d struggled with severe depression for more than a decade, trying multiple antidepressants and years of talk therapy. The treatment helped, but not enough to make it seem worth living with a debilitating mental illness, she says. “I was desperate.”

In 2002, following a friend’s suggestion, Bennett received an injection of ketamine, an anesthetic and psychedelic party drug also known as Special K. During her first ketamine trip, Bennett hallucinated that God inserted a giant golden key into her ear, turning on her brain. “It was as if I was living in a dark house and suddenly the lights came on,” she says. “Suddenly everything seemed illuminated.”

The drug lifted Bennett’s depression and dispelled her thoughts of suicide within minutes. The effect lasted for several months, and, she says, the respite saved her life. She was fascinated by the drug’s rapid effects and went on to earn a doctoral degree in psychology, writing her dissertation about ketamine. Today, she works at a clinic in Berkeley, California, that specializes in using ketamine to treat depression. “This medicine works differently and better than any other medication I’ve tried,” she says.

When Bennett experimented with ketamine, the notion of using a psychedelic rave drug for depression was still decidedly fringe. Since the first clinical trials in the early 2000s, however, dozens of studies have shown that a low dose of ketamine delivered via IV can relieve the symptoms of depression, including thoughts of suicide, within hours.

Even a low dose can have intense side effects, such as the sensation of being outside one’s body, vivid hallucinations, confusion and nausea. The antidepressant effects of ketamine typically don’t last more than a week or two. But the drug appears to work where no others have — in the roughly 30 percent of people with major depression who, like Bennett, don’t respond to other treatments. It also works fast, a major advantage for suicidal patients who can’t wait weeks for traditional antidepressants to kick in.

Infographic shows the relatively small percentage of people who suffer from depression who may be helped by ketamine, according to clinical studies. Of the 17 million people in the US estimated to suffer from depression, only 10 million receive treatment. Half of those are helped by that treatment, with only about a third experiencing full recovery. Treatment-resistant patients have severe disease and don’t respond to current medications. Studies suggest that about 60 percent of this group may find relief with ketamine.

“When you prescribe Prozac, you have to convince people that it’s worth taking a medication for several weeks,” says John Krystal, a psychiatrist and neuroscientist at Yale University in New Haven, Connecticut. “With ketamine, patients may feel better that day, or by the next morning.”

The buzz around ketamine can drown out just how little is known about the drug. In the April 2017 JAMA Psychiatry, the American Psychiatric Association published an analysis of the evidence for ketamine treatment noting that there are few published data on the safety of repeated use, although studies of ketamine abusers — who typically use much higher doses — show that the drug can cause memory loss and bladder damage. Most clinical trials of the low dose used for depression have looked at only a single dose, following up on patients for just a week or two, so scientists don’t know if it’s safe to take the drug repeatedly over long periods. But that’s exactly what might be necessary to keep depression at bay.

The analysis also warned about ketamine’s well-established potential for abuse. Used recreationally, large doses of the drug are known to be addictive — there’s some evidence that ketamine can bind to opioid receptors, raising alarms that even low doses could lead to dependence.

Bennett has now been receiving regular ketamine injections for 17 years, with few negative side effects, she says. She doesn’t consider herself addicted to ketamine because she feels no desire to take it between scheduled appointments. But she does feel dependent on the drug, in the same way that a person with high blood pressure takes medication for hypertension, she says.

Still, she acknowledges what most clinicians and researchers contend: There simply aren’t enough data to know what the optimal dose for depression is, who is most likely to benefit from ketamine treatment and what long-term treatment should look like. “There’s a lot that we don’t know about how to use this tool,” Bennett says. “What’s the best dose? What’s the best route of administration? How frequently do you give ketamine treatment? What does maintenance look like? Is it OK to use this in an ongoing way?”

Despite the unknowns, pharmaceutical companies have been racing to bring the first ketamine-based antidepressant to market. In March, the US Food and Drug Administration approved a ketamine-derived nasal spray, esketamine, developed by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson. Only two of Janssen’s five phase III trials had shown a benefit greater than taking a placebo. Still, in February an independent panel recommended FDA approval. That makes ketamine the first novel depression drug to hit the market in more than 50 years, notes Carlos Zarate Jr, a psychiatrist who studies mood disorder therapies at the National Institute of Mental Health.

Photo shows the mechanized assembly line at Janssen Pharmaceutical as bottles of Spravato, the esketamine nasal spray are manufactured.
Although clinicians are hopeful that Janssen Pharmaceutical’s newly approved esketamine nasal spray, Spravato, will expand access to treatment, many also worry about the drug’s potential for abuse.CREDIT: JANSSEN PHARMACEUTICALS, INC.

Thousands of people are already flocking to private clinics like Bennett’s, which provide intravenous ketamine infusions. Because the drug was approved in the 1970s as an anesthetic, physicians can legally provide the drug as an “off-label” depression treatment. Many ketamine clinics have long waiting lists or are so swamped that they aren’t accepting new patients, and Janssen’s nasal spray could rapidly expand access to treatment.

But some researchers worry that the nasal spray won’t solve many of ketamine’s problems and could create new ones. Although the FDA is requiring that the nasal spray be administered only in a certified doctor’s office or clinic, esketamine is “every bit as habit forming as regular ketamine,” and will be difficult to keep out of the hands of abusers, says Scott Thompson, a neuroscientist at the University of Maryland and a coauthor with Zarate of a 2019 review on fast-acting antidepressants in the Annual Review of Pharmacology and Toxicology. A nasal spray can’t deliver as precise a dose as an IV infusion, Thompson notes. “If someone has got a cold, they’re not going to get the same dose.”

Scott Thompson of the University of Maryland discusses how ketamine is changing the landscape of the psychiatric treatment of severe depression.

CREDIT: VIDEO PRODUCED BY HUNNI MEDIA FOR KNOWABLE

In Thompson’s view, esketamine holds few advantages over generic ketamine, which costs less than a dollar per dose, although the IV infusions in private clinics often cost hundreds of dollars per visit. Janssen has indicated that each esketamine treatment will range from $590 to $885, not including the costs of administration and observation.

Zarate and others are still thrilled to see big pharma investing in ketamine, after decades of stalled efforts to find new psychiatric drugs. “As esketamine hits the market, venture capitalists will come up with better versions and move the field forward,” Zarate says. Several drug companies are now testing other ketamine-like compounds in hopes of developing drugs that have its potent antidepressant potential without its psychedelic and dissociative side effects.

Illustration shows a high-tech version of a neural network, with signals represented as lights. Depression, many now think, is caused by problems in the neural circuitry.

Depression, fast and slow

In 2001, writer Andrew Solomon published a haunting description of the depression that derailed his early 30s: “If one imagines a soul of iron that weathers with grief and rusts with mild depression, then major depression is the startling collapse of a whole structure,” he wrote.

When Solomon first fell ill, in the 1990s, many clinicians and researchers presumed that the pathological brain changes underlying depression were inherently slow to repair. This mind-set was rooted in the modest but controversial success of a class of slow-acting drugs that includes Prozac.

Developed in the 1950s, the drugs were first inspired by the chance observation that a hypertension drug called reserpine – an extract of the plant Rauwolfia serpentina, or devil pepper — made people intensely depressed. After discovering that reserpine depletes monoamine neurotransmitters in the brain, including serotonin and norepinephrine, scientists hypothesized that low neurotransmitter levels causedepression. They went on to develop monoaminergic antidepressants, drugs designed to increase circulating levels of these chemicals in the brain.

Today, monoaminergic antidepressants include selective serotonin reuptake inhibitors (SSRIs) such as Prozac, Lexapro and Zoloft, as well as the older and less commonly prescribed monoamine oxidase inhibitors (MAOIs) and tricyclic and tetracyclic antidepressants. Scientists have long debated whether the drugs work at all, but the most comprehensive study to date — published in The Lancet in 2018 — suggests that they do lower depression symptoms in about 60 percent of depressed people, albeit only modestly more than taking a placebo.

The benefits start to show up only after several weeks of treatment, however, and roughly a third of people with major depression disorder – called treatment-resistant patients — don’t respond to at least two types of monoaminergic antidepressant.

By the early 2000s, the monoamine hypothesis had unraveled. This was partly due to the antidepressants’ mediocre performance in patients, and partly to experiments which showed that depleting neurotransmitter levels in healthy people does not make people depressed. Scientists now believe that drugs like Prozac do not directly treat depression’s root cause. Instead, they think the drugs work via an indirect mechanism to subtly boost the growth of synapses and the birth of new neurons, and that this somehow relieves symptoms.

Solomon’s bleak metaphor of corrosion was at least partly grounded in science. Many scientists now agree that depression slowly eats away at the neural pathways underlying our sense of worth and well-being, our desire to go to the movies or get out of bed. But research into ketamine holds out new hope that — unlike rusted iron — the depressed brain can be restored, by repairing and strengthening the neural circuits that regulate mood. —Emily Underwood

Some researchers are also testing whether ketamine works for conditions beyond depression, such as obsessive-compulsive disorder, as well as in specific subsets of patients, such as severely depressed teenagers. Other scientists are using ketamine to help untangle one of the biggest mysteries in neuroscience: What causes depression? (See sidebar.)

Seeking answers in neural wiring

Thirty years ago, the prevailing thought was that low levels of certain brain chemicals, such as serotonin, caused depression. Boosting those could remove symptoms.

“I felt that depression needed months or weeks of treatment — that the plastic changes involved in the healing process would require weeks to reset themselves,” says Todd Gould, a neuropharmacologist at the University of Maryland and a coauthor of the recent review paper. But ketamine’s speed of action casts doubt on that idea.

Newer evidence suggests that depression is caused by problems in the neural circuits that regulate mood, Gould notes. Much of the evidence for this faulty-wiring hypothesis comes from rodents. Starting in the 1990s, scientists began to discover intriguing abnormalities in the brains of mice and rats that had been exposed to certain stressors, such as bullying by a big, aggressive male.

Stress and trauma are strong predictors of depression in people, but scientists can’t ask rats or mice if they are depressed. Instead, they use behavioral tests for classic depression symptoms such as anhedonia, the inability to take joy in pleasurable activities, Thompson says. Depressed animals “give up easily” in experiments that test their willingness to work for rewards like sugar water, or their interest in the intoxicating scent of a potential mate’s urine. “They can’t be bothered to cross the cage,” he says.

Thompson and others have found that there are fewer connections, or synapses, between neurons that communicate reward signals in the brain in depressed animals. Other labs have found shriveled connections in neuronal circuits key to decision-making, attention and memory. Brain imaging studies in people with depression have also revealed abnormal activity in neural circuits that regulate emotion, suggesting that the findings in rodents may also apply to humans.

If faulty neural connections are to blame for depression, the next question is, “How do we get atrophied neural pathways to regrow?” Krystal says.

Circuit training

The answer, many scientists now believe, is the brain’s most abundant neurotransmitter, glutamate.

Glutamate is the workhorse of the brain. It relays fleeting thoughts and feelings, and enables the formation of memories by strengthening synaptic connections. Glutamate is the reason you can still ride a bike years after you learned, even if you never practiced.

Not all glutamate activity is good. Too much can cause the equivalent of an electrical storm in the brain — a seizure — and chronically high levels may lead to dementia. Abnormalities in glutamate receptors — specialized proteins on the surface of brain cells where glutamate can dock and bind — are linked to a wide array of psychiatric diseases, including depression and schizophrenia.

To maintain balance, cells called inhibitory interneurons act like brakes, releasing a neurotransmitter called GABA that quiets brain activity. Most mind-altering drugs work by changing the balance between GABA and glutamate — amphetamines and PCP enhance glutamate signaling, for example, while alcohol inhibits glutamate and boosts GABA.

By the 1990s, scientists had discovered that ketamine triggers a gush of glutamate in the brain’s prefrontal cortex. This region governs attention and plays an important role in emotional regulation. The out-of-body sensations that some people experience when they take ketamine may occur because this rapid release of glutamate “excites the heck out of a whole bunch of neurons” in the prefrontal cortex, says Bita Moghaddam, a neuroscientist at Oregon Health & Science University who discovered the drug’s glutamate-revving effect on rats while studying schizophrenia.

Scientists aren’t sure yet how ketamine forms stronger neural circuits. But the hypothesis goes roughly like this: When ketamine enters the brain, it causes a short-term burst of neuronal activity that triggers a series of biochemical reactions that create stronger, more plentiful synaptic connections between brain cells.

At first, many researchers thought ketamine’s antidepressant effects relied on a structure located on the surface of neurons, called the NMDA receptor. Like a key that fits into different locks, ketamine can bind to several types of NMDA receptor, making neurons release the excitatory glutamate neurotransmitter.

This hypothesis suffered a blow, however, when several drugs designed to bind to the NMDA receptor (as ketamine does) failed in clinical trials for depression.

A space-filling ribbon model shows the 3-D structure of the NMDA receptor, which binds glutamate in the brain and is thought to play a key role in the symptoms of depression.
Central to the controversy over how ketamine works in the brain is the NMDA receptor (illustrated here), which binds to the neurotransmitter glutamate. Some scientists believe ketamine’s antidepressant effects hinge on its ability to block NMDA receptors, but others believe the drug works via other mechanisms. Resolving that mystery is key to developing similar drugs with fewer side effects, scientists say.CREDIT: FURUKAWA LAB, CSHL

Esketamine also complicates the story. Ketamine is made up of two molecules that form mirror images of each other, R- and S-ketamine. Esketamine is made up of just the S form and binds roughly four times as effectively as R-ketamine to the NMDA receptor. Despite acting much more powerfully on the NMDA receptor, studies in rodents suggest that S-ketamine is a less potent antidepressant than R-ketamine, although it’s not yet clear whether or not R-ketamine could work better in humans.

Zarate and others now believe ketamine may work through a different receptor that binds glutamate, called AMPA. By pinpointing which receptor ketamine acts on, researchers hope to develop a similar drug with fewer side effects. One hot lead is a compound called hydroxynorketamine (HNK) — a metabolic byproduct of ketamine that does not affect NMDA receptors but still produces rapid antidepressant effects in rodents. The drug appears to lack ketamine’s disorienting side effects, and Zarate and Gould plan to launch the first small clinical trials to establish HNK’s safety in humans this year, likely in around 70 people. “I think we have a very good drug candidate,” Gould says. (Zarate and Gould, among others, have disclosed that they are listed on patents for HNK, so they stand to share in any future royalties received by their employers.)

Plastic synaptic remodelers

To alter how the brain processes mood, scientists believe ketamine must ultimately change synapses. In experiments in rodents, Ron Duman of Yale University has shown that both ketamine and HNK can harness one of the brain’s most important tools for synaptic remodeling: brain-derived neurotrophic factor, or BDNF.

BDNF is a protein intimately involved in shaping synapses during brain development and throughout the lifespan. Healthy brain function depends on having just the right amount of BDNF in the right place at the right time. Many mental illnesses, including depression, are associated with low or abnormal amounts of the protein. For example, samples of brain tissue from people who have died by suicide often contain abnormally low amounts of BDNF.

Duman and colleagues have found that both ketamine and HNK cause a sharp uptick in the amount of BDNF that is released from neurons. This increase is required for the drugs’ antidepressant effects, and for the increase in dendritic spines — the stubby protrusions that form synaptic connections with other neurons. Both ketamine and HNK also seem to reduce inflammation, which has been linked repeatedly to the stress-induced loss of synapses.

A micrograph of a portion of a rat neuron, in false colors, shows how ketamine coaxes the budding of new dendritic spines from the neuron. In a control, two dendritic spines are visible. In the ketamine-treated neuron, six dendritic spines are visible
Ketamine strengthens connections between brain cells. Compared with a control, a rat neuron (red) treated with ketamine has grown more dendritic spines (shown by yellow arrows).CREDIT: R.J. LIU, G. AGHAJANIAN & R. DUMAN

Ketamine is not the only compound that can induce rapid synaptic plasticity: Other psychedelics, such as ecstasy (MDMA), acid (LSD), and DMT also trigger similar structural changes in neurons and rapid antidepressant effects in rodents, researchers at the University of California at Davis recently found. The effects don’t hinge on getting high, the team reported in March in ACS Chemical Neuroscience. Even very small doses — too low to cause perceptual distortions — can increase synapse density and lift depression.

Traditional antidepressants such as Prozac also increase BDNF levels in the brain, but not nearly as fast as ketamine does, Duman says. That is why most antidepressants take so long to remodel synapses and relieve depression symptoms, he says.

Dissecting depression

Beyond promising new treatments, Zarate and other researchers see ketamine as a powerful tool for probing depression’s tangled neurobiology. Studies in mice and rats are a good start, but scientists need to study the drug in people to truly understand how ketamine affects the brain. Unlike traditional, slower-acting antidepressants, ketamine lends itself to short-term lab experiments.

Zarate is using neuroimaging tools such as fMRI to study the human brain on ketamine. Past studies have shown that in people with depression, communication among several key brain networks is disrupted. One network, called the default-mode network (DMN), is involved in self-referential thoughts such as ruminating about one’s problems or flaws. This network tends to be hyperactive in people with depression, and less connected to more outwardly attuned brain networks such as the salience network, which helps the brain notice and respond to its surroundings.

Before and after images show averaged brain activity of people with treatment-resistant major depression while their index finger is stroked. Before an infusion of ketamine, the patients show some activity in the front of the brain. After ketamine, the activity is more widespread and the intense, as shown in false colors on the image of the brain, and representing enhanced cortical excitability.
Ketamine appears to strengthen connections between neural networks in people with severe depression. In a study comparing neural activity prior to a ketamine infusion (left) and six to nine hours after an infusion (right), a single dose made the brain more responsive to a simple sensory stimulus, the light stroking of a finger.

In one recent study, Zarate and his colleagues found that after receiving an IV dose of ketamine, people with depression had more normal activity in the default mode network, and that it was better connected to the salience network. At least temporarily, the drug seems to help people get unstuck from patterns of brain activity associated with repetitive, negative thoughts. Zarate does caution that the study results need to be replicated.

The team has also used brain imaging to study how ketamine affects suicidal thoughts. About four hours after an infusion of ketamine, a chunk of the prefrontal cortex that is hyperactive in people with depression had calmed down, researchers found, which correlated with people reporting fewer thoughts of suicide.

Ketamine also seems to tune other brain regions that are key to effective treatment. Last year, scientists published a study in mice showing that ketamine quiets abnormal activity in the lateral habenula, a small nodule wedged deep under the cortex. Some researchers have described the lateral habenula as the brain’s “disappointment center.” The region is responsible for learning from negative experiences, and is hyperactive in people with depression, as if “broadcasting negative feelings and thoughts,” Thompson says.

Such studies remain exploratory. As to why ketamine works — and just as important, why its effects are transient — scientists are still speculating. “I think ketamine is resetting neural circuits in a way that improves the symptoms of depression, but the risk factors — whether genetic, environmental or other risk factors — are still present,” Gould says. “It seems to help reset things temporarily, but the underlying cause is not necessarily resolved.”

Helen Mayberg, a neurologist at Mount Sinai Hospital in New York who specializes in using an experimental procedure called deep brain stimulation to treat depression, suggests that ketamine may be like using a defibrillator on someone experiencing cardiac arrhythmia. “I am not addressing the fact that you have underlying heart disease, but now that your arrhythmia is gone, I can concentrate on other treatments.”

It’s important to put the potential risks of ketamine into perspective, particularly for people contemplating suicide, researchers emphasize. Most people are willing to tolerate severe side effects for other life-saving treatments, such as cancer drugs, Mayberg points out. “If you can interrupt an extreme suicidal plan and ideation, I’ll take that.”

Ketamine in teens?

For Krystal, weighing ketamine’s still largely uncharted risks and potential rewards ultimately comes down to a deeply personal question: “What would we want for ourselves? For our families? Do we want them to have to go through several failed trials over several months, or even a year, before taking a medication that might make their depression better in 24 hours?”

Some of the hardest decisions are likely to involve children and adolescents. Hospitalization for youth suicide attempts and ideation nearly doubled between 2008 and 2015, leaving many clinicians — and parents — desperate for more effective and rapid treatments. Left untreated, depression is “really bad for the brain” and can cause serious, long-term cognitive and developmental problems when it starts young, Zarate says. “The question is, is that going to be better than the long-term side effects of ketamine?”

Untreated depression is really bad for the brain, especially in the young. The question is, is that going to be better than the long-term side effects of ketamine?

Scientists don’t yet know. Ketamine has been deemed safe to use as an anesthetic in children, but there aren’t yet sufficient clinical data to show how low, repeated doses of ketamine used for depression could affect the developing brain.

On a more fundamental level, scientists don’t fully understand the neurobiology of adolescent depression, notes psychiatrist Kathryn Cullen of the University of Minnesota. It may involve abnormalities in brain development, such as the way the prefrontal cortex connects to brain regions that process emotion, but “we don’t know if the brain connection abnormalities emerge because of toxic stress induced by depression, or if these abnormalities predispose people to develop depression, or if depression itself reflects abnormal development,” Cullen says. “It’s critical to figure out how to alleviate the biological changes that are associated with [teen] depression so that the brain can get back on a healthy trajectory.”

Two recent clinical trials — one at Yale and another at Minnesota run by Cullen — have found that ketamine can lower symptoms in severely depressed teenagers, but neither study was set up to follow the teenagers long-term, says Cullen. Janssen is currently running a trial of its esketamine nasal spray with 145 youths who are suicidal, but the results of that study have not been published yet. Cullen thinks ketamine has potential for use in teens, particularly to avoid suicide, but “there are still a lot of unknowns.”

Not just a quick fix

Worldwide, depression afflicts more than 300 million people, making it the leading global cause of disability. When contemplating such overwhelming misery, the vision of a world in which depression can be cured with a single injection or squirt of nasal spray holds obvious appeal.

A photo shows a woman as she receives an infusion of the drug ketamine during a 45-minute session at an outpatient clinic in Chicago on July 25, 2018. She struggled with depression and anxiety and made several suicide attempts before starting ketamine treatments earlier in the year.
Thousands of private clinics in the United States, such as this outpatient clinic in Chicago, are offering repeated ketamine treatment off-label for depression and suicidal thoughts, but the drug’s effects are temporary and scientists still don’t know whether taking the drug over long periods is safe.CREDIT: AP PHOTO / TERESA CRAWFORD

But — despite the hype — that is not what ketamine offers, Bennett says. Based on her own experience as a patient, and her clinical work, she is troubled by the framing of ketamine as a “rapid” depression treatment if that precludes the slower, more effortful process of psychotherapy. Without psychotherapy, she says, “you’re not giving patients any tools to help themselves, just making them dependent on a molecule that has temporary effects. When the effect wears off, they have to go back for more medicine. This is going to be lucrative for the pharmaceutical company but probably not in the patient’s best interest.”

In Bennett’s clinic, ketamine is administered only alongside talk therapy, which she uses to prepare patients before they take ketamine, and afterward to help them process the experience. “I think this is the only ethical way” to administer a drug that can trigger disorienting psychedelic experiences, she says. “This isn’t a ‘take two and call me in the morning’ situation.”

There’s growing scientific interest in whether ketamine can enhance the effectiveness of therapy by increasing the brain’s ability to remodel circuits through experience, Krystal notes. And in 2017 a small Yale study found that providing cognitive behavioral therapy in tandem with ketamine can extend the drug’s antidepressant effects.

Unlike some researchers and pharmaceutical companies, which consider ketamine’s and esketamine’s hallucinogenic side effects inherently negative, Bennett thinks that for some people the visions can be positive — particularly in the context of therapy. There’s scant scientific evidence to support the idea that such hallucinations are therapeutic, and they can be deeply disturbing for some people. (If people who experience hallucinations do better, it may simply be because they have received a higher dose of ketamine, Krystal points out.)

Still, Bennett thinks researchers and clinicians need to stay open-minded about why ketamine is helping people — and be more attentive to the settings in which ketamine and esketamine are administered. “People consistently report that they experience the presence of God, or their own sacredness,” she says. “When someone comes to my office wanting to kill themselves, ready to die — and then they have a transformational moment where they believe their life is sacred — it’s indescribable how exciting that is as a clinician.”

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

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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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.

Ketamine: A Promising Novel Therapy for Anxiety and PTSD

Ketamine was originally approved by the US Food and Drug Administration (FDA) as an anesthetic, but is increasingly being used to treat mood disorders, such as treatment-resistant depression, anxiety disorders, and post-traumatic stress disorder (PTSD).1,2 Several studies have also found it to be effective for treating suicidal ideation.3,4

“Ketamine can play an important role in the treatment of anxiety disorders,” according to Prakash Masand, MD, co-founder, chairman, and CEO of Centers of Psychiatric Excellence (COPE) (https://www.copepsychiatry.com) and adjunct professor at the Academic Medicine Education Institute, Duke-National University of Singapore Medical School (Duke-NUS).

“Nowadays, people with anxiety disorders are treated either with a generic antidepressant, such as an SSRI (selective serotonin reuptake inhibitor), an SNRI (selective norepinephrine reuptake inhibitor), or a benzodiazepine and if they don’t respond to one of these, they get a trial of another or several more,” Dr Masand said.

However, between 30% and 40% of these patients will not achieve remission, despite 3 or 4 different traditional agents, and even with evidence-based nonpharmacologic therapies, such as cognitive behavioral therapy (CBT) or mentalization-based therapy (MBT), he noted.

“No good current strategies are available for these non-responders, so novel agents are being studied — including ketamine, which is accumulating an evidence base as [being] rapidly effective for an array of anxiety disorders, including social anxiety disorder (SAD) and PTSD,” he said.

How Does Ketamine Work?

A growing body of evidence points to the role of glutamate, a widely distributed excitatory neurotransmitter, in mediating response to stress and the formation of traumatic memories.2 Ketamine is an ionotropic glutamatergic N-methyl-d-aspartate (NMDA) receptor antagonist. Its antidepressant and anti-anxiety effects are presumed to occur through activating synaptic plasticity by increasing brain-derived neutrophic factor translation and secretion and also by inhibiting glycogen synthase kinase-3 and activating mammalian target of rapamycin signaling.5

Brain-derived neutrophic factor plays a role in behavioral responses to classical antidepressants, but the impact on synaptic plasticity may take several weeks to manifest. In contrast, ketamine-mediated synaptic plasticity changes appear to occur within a matter of hours after ketamine administration.5

“The current thinking is that eventually, 6 to 12 weeks after initiating treatment with traditional antidepressants, dendritic growth and increased synaptic connections occur but with ketamine, these can occur within 24 hours of the infusion,” Dr Masand said.

Ketamine and Anxiety: An Increasing Evidence Base

“Ketamine has been studied and shown [to be] effective with an array of anxiety disorders, including SAD, general anxiety disorder (GAD), and PTSD, although the data on its effectiveness in obsessive compulsive disorder (OCD) are more mixed,” Dr Masand observed.

GAD/SAD

  • A small study of patients with GAD and/or SAD (n=12) compared 3 ascending ketamine doses to midazolam. Each was given at 1-week intervals, with midazolam counterbalanced in dosing position across patients. Ketamine was found to dose-dependently improve scores on the Fear Questionnaire. Moreover, it’s impact on decreasing theta frequency in the right frontal sites assessed via  electroencelphalogram (EEG) was comparable to that of conventional anxiolytics.6
  • Glue et al evaluated the efficacy and safety of ketamine in 12 patients with refractory GAD and/or SAD who were not currently depressed using an ascending single-dose at weekly intervals study design. Within 1 hour of dosing, patients reported reduced anxiety, which persisted for up to 7 days.7
  • A continuation of that study evaluated the impact of maintenance treatment ketamine in patients with GAD and/or SAD (n=20) and found that 18 of the 20 patients reported ongoing improvements in social functioning and/or work functioning during maintenance treatment. The researchers concluded that maintenance therapy ”may be a therapeutic alternative for patients with treatment-refractory GAD/SAD.”8

“What is interesting about this study is that the impact of just one infusion lasted for 14 weeks, suggesting that patient[s] with anxiety disorders might have longer maintenance of response than patients with major depression, where the response has been maintained for only one week,” Dr Masand commented.

Anxious Depression

  • A study of patients with anxious and non-anxious bipolar depression (n=21 for both groups) found that both anxious and non-anxious patients with bipolar depression had significant antidepressant responses to ketamine, although the anxious depressed group did not show a clear antidepressant response disadvantage over the non-anxious group.9 “Given that anxiety has been shown to be a predictor of poor treatment response in bipolar depression when traditional treatments are used, our findings suggest the need for further investigations into ketamine’s novel role in the treatment of anxious bipolar depression.,” the investigators concluded.9

Related Articles

OCD

  • An open-label trial of ketamine in 10 patients with treatment-refractory OCD found that ketamine’s effects on OCD symptoms, in contrast to depressive symptoms, did not seem to persist or progress after the acute effects of ketamine had dissipated.10
  • On the other hand, another randomized controlled trial (RCT) of 15 patients with OCD found that anti-OCD effects from a single intravenous dose of ketamine persisted for more than 1 week in some patients with OCD with constant intrusive thoughts, demonstrating that “a drug affecting glutamate neurotransmission can reduce OCD symptoms without the presence of an [SSRI].”11

PTSD

In PTSD, there is “mounting evidence for a role of the excitatory neurotransmitter glutamate in stress responsiveness, the formation of traumatic memories, and the pathophysiology of PTSD, raising the possibility of identifying novel glutamatergic interventions for this disorder.”12

  • One double-blind study demonstrated that infusion of ketamine rapidly and significantly reduces symptom severity in patients with  PTSD compared with midazolam.2
  • Another study found that administration of ketamine immediately after witnessing a traumatic event has been shown to prevent the enhancement of passive avoidance learning in mice.13Ketamine may thus target the mechanisms involved in the consolidation of traumatic memory and may enable the brain to reconsolidate memory and release trauma.14
  • A case study of a child with PTSD reported remission from behavioral dysregulation after receiving procedural ketamine.15

Drawbacks and Potential Adverse Effects

The main concern regarding the use of ketamine for anxiety disorders is the lack of a road map regarding maintenance, Dr Masand noted.

“At COPE, we have found that roughly 30% to 40% of our patients being treated with ketamine require maintenance infusions, and we highly personalize this approach so that patients can identify early signs of recurrence or relapse and we can devise a treatment schedule to prevent them,” he said.

Some patients continue treatment with pharmacotherapy, including standard antidepressants, benzodiazepines, or a mood stabilizer such as valproate and some patients become more receptive to psychotherapies such as CBT,” he stated.

However, “there is very little data regarding what happens long-term in this patient population.”

“Most side effects are mild and transient,” Dr Masand reported. “Patients must be monitored because of potential increases in blood pressure and pulse.”

Additional adverse events include nausea or vomiting, which are also mild and transient. Patients may be pre-treated with prophylactic anti-nausea medication, such as ondansetron, to pre-empt these symptoms, he said.

Some patients experience dissociation, or an out-of-body experience, which is also usually transient but seen by some patients as “annoying,” he noted. “Dissociative experiences are sometimes seen as a biomarker for insufficient response and suggest that the dose should be increased.”

Providers should be aware that cystitis and lower urinary tract pathologies (eg, detrusor over-activity) have been reported in long-term ketamine users, but typically only at high doses.16

Ketamine’s psychedelic effects make it a” popular recreational drug.”16 At lower doses, the predominant effects are stimulating, and users experience mild dissociation with hallucinations and a distortion of time and space. However, higher doses can induce more severe, schizophrenia-like symptoms and perceptions.16 Although these effects resolve rapidly, long-term use “can cause more pronounced and persistent neuropsychiatric symptoms. For this reason, ketamine should be “used cautiously with other drugs that alter mood and perception, including alcohol, opioids, benzodiazepines and cannabis.”16

Promising Role

“Ketamine for treatment-resistant depression has a robust evidence base and a rapidly-growing evidence base for its use in anxiety disorders,” Dr Masand said.

“Given the gaps in current treatment, this promising agent is occupying a more promising role in treatment of anxiety disorders, such as PTSD. Considering how common PTSD is, ketamine can make an important difference for a large number of people who suffer from this debilitating condition,” he concluded.

First Person Account of Ketamine Therapy: An Interview with Kimberly Palmer

To gain insight into the experience of ketamine treatment in a person with depression and anxiety, Psychiatry Advisor interviewed Kimberly Palmer of Los Angeles, California. Ms Palmer received treatment at the Ketamine Clinics of Los Angeles (https://www.ketamineclinics.com). Ms Palmer works as a program manager for a consulting company where she organizes and runs corporate events for small groups.

Psychiatry Advisor: What made you decide to pursue ketamine treatment?

Ms Palmer: I was raised in an abusive home, and as an adult I had severe major depression, as well as anxiety. I was treated with medications, such as antidepressants, but they had many adverse events and they ended up making me feel like a zombie, so I discontinued them. I managed okay for a while, but then I had another major depressive episode.

I was receiving psychotherapy at the time and it was only moderately helpful — not enough to stop the episode. Fortunately, I knew someone who works at a ketamine clinic. She told me how many patients had been helped by ketamine and I was interested, mostly because the adverse events of ketamine seemed mild and are not long-term.

Psychiatry Advisor: What were your experiences during your infusion?

Ms Palmer: I felt incredible during the infusion. The best way I can describe it is by referring to the movie Avatar, specifically the scene in which the protagonist is walking through a jungle at night for the first time and touching all the plants, which light up with pretty colors—very vivid, colorful, and not linear. There was the sensation of being on a sort of roller coaster, riding through different scenes.

At one point, it felt as though my chair was on a cloud. Then suddenly, the chair disappeared and I was floating on the cloud. It was a wonderful experience.

Psychiatry Advisor: How did the ketamine treatment affect you afterwards?

Ms Palmer: After only one treatment, it was as if a switch had flipped in my brain that allowed me to digest things and move beyond my trauma. Before the infusion, a lot of what was going on with me had to do with self-esteem issues and negative self-talk. These were behaviors learned over many years. After the infusion, the negative self-talk immediately disappeared. All of those thoughts — such as telling myself I am not good enough — that were preventing me from working through emotional issues, were resolved. I was able to start looking at things more objectively rather than taking them personally, and not take on responsibility for other people’s emotions and reactions.

I am currently working with a therapist and a life coach to help me feel more comfortable with communication because I was raised not to ask for things and to put up with anything I’m asked to do. As a result, I have developed a much more positive outlook of myself and the world.

Psychiatry Advisor: How many ketamine treatments have you had?

Ms Palmer: Over a 6-month period I had 6 treatments, which were all very helpful. Then, 6 months after the conclusion of this first series of treatments, some new issues came up, so I received 2 more — one regular 60-minute treatment and one extended 90-minute treatment.

Recently, with the holidays coming up, I decided to pre-empt the effect of some stressors and have another treatment. My most recent infusion took place the day after my father passed away. I noticed that during the infusion, I was able to steer myself away from negative thoughts about that issue. Although I cannot control what visions or experiences I might have, I do have some control over the direction of my thoughts and the after-effects have been positive and helpful.

Psychiatry Advisor: Did you have any adverse events from the treatments?

Ms Palmer: I had no negative physical effects. I had one mild bad reaction, when I came to the treatment session in an agitated state because I had gotten into a fight with someone right before. I was sad and crying  by the time I finished the infusion. But I was in a bad headspace before I even walked into the room. And my experience was not scary, only sad.

Psychiatry Advisor: What impact has your treatment had on your day-to-day life?

Ms Palmer: My depression had interrupted my schooling. I was in school for 3 and a half years and then I hit a roadblock. After the treatments, I was able to complete my studies and graduated with a BA in business administration and management.

My job is stressful. I counterbalance the stress with hobbies like surfing and photography. But there are still stressors, and I have a dog who is reaching the end of life, which is affecting me. The ketamine treatments have helped me to manage those stressors. 

References

  1. Sanacora G, Frye MA, McDonald W, et al. A consensus statement on the use of ketamine in the treatment of mood disordersJAMA Psychiatry. 2017;74(4):399-405.
  2. Feder A, Parides M, Murrough JW, et al. Efficacy of intravenous ketamine for treatment of chronic posttraumatic stress disorder: a randomized clinical trialJAMA Psychiatry. 2014;71(6):681-688.
  3. Murrough JW, Soleimani L, DeWilde KE, et al. Ketamine for rapid reduction of suicidal ideation: a randomized controlled trialPsychol Med. 2015;45(16):3571-3580.
  4. Wilkinson ST, Ballard ED, Bloch MH, et al. The effect of a single dose of intravenous ketamine on suicidal ideation: a systematic review and individual participant data meta-analysisAm J Psychiatry. 2018;175(2):150-158.
  5. Schwartz J, Murrough JW, Iosifescu DV. Ketamine for treatment-resistant depression: recent developments and clinical applicationsEvid Based Ment Health. 2016;19(2):35-38.
  6. Shadli SM, Kawe T, Martin D, McNaughton N, Neehoff S, Glue P. Ketamine effects on EEG during therapy of treatment-resistant generalized anxiety and social anxiety [published online April 24,2018]. Int J Neuropsychopharmacology. doi:10.1093/ijnp/pyy032
  7. Glue P, Medlicott NJ, Harland S, et al. Ketamine’s dose-related effects on anxiety symptoms in patients with treatment refractory anxiety disorders. J Psychopharmacol. 2017;31(10):1302-1305.
  8. Glue P, Neehoff SM, Medlicott NJ, Gray A, Kibby G, McNaughton N. Safety and efficacy of maintenance ketamine treatment in patients with treatment-refractory generalised anxiety and social anxiety disordersJ Psychopharmacol. 2018;32(6):663-667.
  9. Ionescu DF, Luckenbaugh DA, Niciu MJ, Richards EM, Zarate CA. A single infusion of ketamine improves depression scores in patients with anxious bipolar depressionBipolar Disord. 2014;17(4):438-443.
  10. Bloch MH, Wasylink S, Landeros-Weisenberger A, et al. Effects of ketamine in treatment-refractory obsessive-compulsive disorderBiol Psychiatry. 2012;72(11):964-970.
  11. Rodriguez CI, Kegeles LS, Levinson A, et al. Randomized controlled crossover trial of ketamine in obsessive-compulsive disorder: proof-of-concept. Neuropsychopharmacology. 2013;38(12):2475-2483.
  12. Girgenti MJ, Ghosal S, LoPresto D, Taylor JR, Duman RS. Ketamine accelerates fear extinction via mTORC1 signalingNeurobiol Dis. 2016;100:1-8.
  13. Ito W, Erisir A, Morozov AObservation of distressed conspecific as a model of emotional trauma generates silent synapses in the prefrontal-amygdala pathway and enhances fear learning, but ketamine abolishes those effects. Neuropsychopharmacology. 2015; 40(11):2536-2545.
  14. Fattore L, Piva A, Zanda MT, Fumagalli G, Chiamulera C. Psychedelics and reconsolidation of traumatic and appetitive maladaptive memories: focus on cannabinoids and ketaminePsychopharmacology (Berl). 2018;235(2):433-445.
  15. Donoghue AC, Roback MG, Cullen KR. Remission from behavioral dysregulation in a child with PTSD after receiving procedural ketaminePediatrics. 2015;136(3):e694-e696.
  16. Li L, Vlisides PE. Ketamine: 50 years of modulating the mindFront Hum Neurosci. 2016;10:612.

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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.

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VA to offer new ketamine-based nasal spray to help combat depression

The newest FDA-approved medication to treat severe depression, a nasal spray based on the anesthetic (and misused hallucinogenic party drug) ketamine, will soon be available to veterans treated within the Department of Veterans Affairs.

In a move that may help thousands of former service members with depression that has not improved with other treatments, VA officials announced Tuesday that the department’s doctors are now authorized to prescribe Spravato, the brand name for esketamine, a molecular variation of ketamine.

The decision to offer a drug hailed by many as a breakthrough in treatment for its speedy results — often relieving symptoms in hours and days, not weeks — shows the VA’s “commitment to seek new ways to provide the best health care available for our nation’s veterans,” Secretary Robert Wilkie said in a release.

“We’re pleased to be able to expand options for Veterans with depression who have not responded to other treatments,” Wilkie added.

The treatment will be available to veterans based on a physician’s assessment and only will be administered to patients who have tried at least two antidepressant medications and continue to have symptoms of major depressive disorder.

An estimated 16 million Americans have had at least one major episode of depression, and of those, 1 in 3 are considered treatment-resistant. In the veteran population of 20 million, the estimated diagnosis rate of depression is 14 percent — up to 2.8 million veterans. Between one-third and half of those veterans may be treatment-resistant.

The lack of effective medications for difficult-to-treat patients prompted the Food and Drug Administration to place esketamine on a fast track, expediting its review of the drug to ensure that it went to patent as soon as safely possible, according to administration officials.

“Controlled clinical trials that studied the safety and efficacy of this drug, along with careful review through the FDA’s drug approval process, including a robust discussion with our external advisory committees, were important in our decision to approve this treatment,” said Dr. Tiffany Farchione, acting director of the FDA’s Center for Drug Evaluation and Research Division of Psychiatry Products, in a release.

As with any other medication, there are risks. Spravato carries a boxed warning for side effects that include misuse, the reason it is administered under a doctor’s supervision. The list of side effects includes sedation and blood pressure spikes and disassociation, such as feelings of physical paralysis and out-of-body experiences. It also can cause suicidal thoughts and behaviors.

Acknowledging the dangers, FDA made esketamine available only through a restricted distribution system.

A veteran prescribed Spravato would inhale the nasal spray at a medical facility while under supervision of a medical provider, and would be monitored for at least two hours after receiving the dose. A typical prescription includes twice-weekly doses the first month, followed by a single dose weekly or biweekly as needed. Spravato cannot be dispensed for home use.

Spravato is made by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson. It is the first major antidepressant medication to hit the market in 30 years.



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Ketamine-like depression treatment on track for FDA approval

 

Ketamine offers lifeline for people with severe depression, suicidal thoughtsThe drug is a close relative of ketamine, a powerful medication used in hospitals primarily as an anesthetic; recent scientific studies have also shown its potential with treatment-resistant depression and suicidal ideation. Ketamine is also used recreationally — and illegally — as a club drug known as Special K. It generates an intense high and dissociative effects.Esketamine, which is not FDA-approved for any conditions, targets a different brain pathway than approved antidepressants, many of which have been around for decades. It is expected to be used in combination with antidepressants, but the latter can take a month or two to take effect. Esketamine, on the other hand, might have an effect within hours or days, according to an FDA briefing document.The drug was designated as a breakthrough therapy in 2013, intending to “expedite the development and review of drugs for serious or life-threatening conditions,” the FDA says. First-line treatments don’t work for roughly 30% to 40% of patients with major depressive disorder, according to the briefing document.The FDA does not have to follow the recommendation of advisory committees, though it often does.

ERs 'flooded' with mentally ill patients with no place else to turn

ERs ‘flooded’ with mentally ill patients with no place else to turnHowever, the research behind esketamine has come under some criticism, with two of five key studies failing to meet their primary endpoints. Only one of these studies is a positive short-term trial, whereas most FDA-approved antidepressants are backed by at least two, according to the briefing document. But Janssen has maintained that the overall picture is positive.Adverse events tended to occur in the first two hours patients received the drug, including sedation, blood pressure increases and dissociation. For this reason, patients wouldn’t be able to pick it up at a local pharmacy; it would be given under the supervision of health care professionals who can keep an eye on the person during those first two hours.Because of the drug’s close relationship to ketamine, experts have also raised concerns about its potential for misuse and abuse. The clinical trials have not seen evidence of this risk, according to presentations made during the meeting.Advisory panelists also expressed concern that not enough long-term data was available to characterize the drug’s cognitive effects and other health impacts down the line.Get CNN Health’s weekly newsletter

There were six deaths of patients taking esketamine in trials, including three suicides, but FDA materials concluded “it is difficult to consider these deaths as drug-related.”The only current FDA-approved medication for treatment-resistant depression combines two other drugs already on the market. Other non-pharmaceutical treatments exist, such as electroconvulsive therapy.Janssen spokesman Greg Panico said no information about pricing would be available at this time. An FDA decision is expected in early March, he added.

 

CNN)A ketamine-like drug for treatment-resistant depression was backed by a US Food and Drug Administration advisory committee on Tuesday. If it is then approved by the FDA, the drug — called esketamine — may provide a new option for patients with major depressive disorder who have tried at least two other antidepressants without success.A panel of experts voted to endorse the drug, which is made in nasal spray form by the pharmaceutical company Janssen, a division of Johnson & Johnson. Fourteen members voted that the benefits outweighed the risk, with two opposed and one abstaining.

Ketamine offers lifeline for people with severe depression, suicidal thoughts
703-844-0184 | NOVA Health Recovery | Alexandria, Va 22306

Ketamine offers lifeline for people with severe depression, suicidal thoughtsThe drug is a close relative of ketamine, a powerful medication used in hospitals primarily as an anesthetic; recent scientific studies have also shown its potential with treatment-resistant depression and suicidal ideation. Ketamine is also used recreationally — and illegally — as a club drug known as Special K. It generates an intense high and dissociative effects.Esketamine, which is not FDA-approved for any conditions, targets a different brain pathway than approved antidepressants, many of which have been around for decades. It is expected to be used in combination with antidepressants, but the latter can take a month or two to take effect. Esketamine, on the other hand, might have an effect within hours or days, according to an FDA briefing document.The drug was designated as a breakthrough therapy in 2013, intending to “expedite the development and review of drugs for serious or life-threatening conditions,” the FDA says. First-line treatments don’t work for roughly 30% to 40% of patients with major depressive disorder, according to the briefing document.The FDA does not have to follow the recommendation of advisory committees, though it often does.

ERs 'flooded' with mentally ill patients with no place else to turn

ERs ‘flooded’ with mentally ill patients with no place else to turnHowever, the research behind esketamine has come under some criticism, with two of five key studies failing to meet their primary endpoints. Only one of these studies is a positive short-term trial, whereas most FDA-approved antidepressants are backed by at least two, according to the briefing document. But Janssen has maintained that the overall picture is positive.Adverse events tended to occur in the first two hours patients received the drug, including sedation, blood pressure increases and dissociation. For this reason, patients wouldn’t be able to pick it up at a local pharmacy; it would be given under the supervision of health care professionals who can keep an eye on the person during those first two hours.Because of the drug’s close relationship to ketamine, experts have also raised concerns about its potential for misuse and abuse. The clinical trials have not seen evidence of this risk, according to presentations made during the meeting.Advisory panelists also expressed concern that not enough long-term data was available to characterize the drug’s cognitive effects and other health impacts down the line.Get CNN Health’s weekly newsletter

There were six deaths of patients taking esketamine in trials, including three suicides, but FDA materials concluded “it is difficult to consider these deaths as drug-related.”The only current FDA-approved medication for treatment-resistant depression combines two other drugs already on the market. Other non-pharmaceutical treatments exist, such as electroconvulsive therapy.Janssen spokesman Greg Panico said no information about pricing would be available at this time. An FDA decision is expected in early March, he added.

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Is Ketamine Safe and Effective for Depression?

The anesthetic ketamine, used in both humans and animals, is perhaps best known as an illegal party drug due to its hallucinogenic effects. However, a growing body of research indicates that the drug may have a powerful new medical use: as a fast-acting antidepressant without the side effects seen in most prescription antidepressants.

As Nature reports, in many clinical trials to date people who have not responded to standard antidepressant treatment — such as SSRIs including Prozac — seem to respond to ketamine. And while it can take weeks to feel better after starting a prescription antidepressant, the therapeutic effects of ketamine are seen in a matter of hours.

Despite the seemingly “miracle drug” nature of ketamine, there are serious concerns about its use in depression. First, it is unclear how the drug works to alleviate depression. Second, there are no long-term studies on its long-term use. Studies that have already been done indicate the antidepressant effects of ketamine can last from between a few days to a few weeks.

And due to the addictive nature of ketamine itself, there are worries that sustained use of it may lead to dependence.

On May 4, Nature published the results of the latest trial involving ketamine, bolstering its potential as an antidepressant treatment. Researchers, examining the drug in mice, found that that the mood boosting effects may not be caused by ketamine itself, but instead by one of the metabolites ((2R,6R)-hydroxynorketamine) formed when the drug is broken down into smaller pieces.

Even more promising, the ketamine given to the rats did not increase side effects, even though the dose was much stronger than what would be given to humans for depression. The researchers say they want to take the metabolite into testing in humans, though that is likely years away.

The largest trial ever of ketamine in depression was done in 2013 with 73 participants. The drug lead to a decline in depression symptoms 24 hours after treatment in 64% of patients, all of whom had tried at least 3 other drugs without any results.  Antidepressant Efficacy of Ketamine in Treatment resistant depression

Despite the lack of clear-cut evidence of its benefits and unknowns about its long-term risk, many doctors are already offering ketamine as a depression treatments to patients, though this is an off-label use.

Side effects of ketamine can include confusion, lucid daydreaming, fuzzy vision, and a “high” feeling, though they tend to go away quickly, according to these doctors. Patients, who are usually given ketamine via infusion, are carefully monitored and must have pre-arranged transport home. They can’t drive or use heavy machinery for 24 hours.

Drug companies are even trying to cash in on the ketamine craze. Janssen Pharmaceutical is testing a form of ketamine it developed, called esketamine, in 5 clinical trials. It would be given via a nasal spray. Another is rapastinel, under development by Allergan. Both drugs had “breakthrough therapy designation” from the FDA, meaning they will go through the regulatory process at a much quicker rate.

NMDAR inhibition-independent antidepressant actions of ketamine metabolites

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CBD become one of the most sought-after medicines on the market today. Not only is it able to treat a wide range of ailments ranging from cancer to arthritis, CBD is known to be effective without causing any obvious side effects. It can be used safely in the long-term without causing addiction and dependence.

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There are tons of ways to use CBD, and one of the most popular is to use CBD gummies. These products provide patients with a tasty and fun way to medicate themselves. In this article, we’re going to talk about the use of CBD gummies for helping to fight off anxiety and depression.

What is CBD?

CBD, also known as cannabidiol, is one of the main cannabinoids found in the cannabis and hemp plants. CBD is known to treat a number of illnesses, both mental and physical. Some of the things that CBD is most commonly used to treat include:

  • Arthritis and other inflammatory conditions
  • Anxiety, depression, and other mental health problems
  • Cancer
  • Various diseases of the intestinal tract like IBS and Crohn’s disease
  • Various forms of pain, both chronic and acute

These are just a few of the things that CBD can be useful for treating. CBD works by affecting the body’s endocannabinoid system, a system of neurotransmitters that affects a huge number of our bodily processes. We’ll touch on that later in the neurochemistry section.

CBD is attractive to a number of people because it presents a holistic alternative to a lot of pharmaceutical medications. Many people find that their pharmaceuticals may be effective for treating a problem on the surface, but the side effects often compete with the benefits and in the long-run the illness is rarely treated.

CBD gummies, on the other hand, can help people manage the symptoms of their illnesses without actually becoming dependent on a drug or overwhelmed by side effects. This provides a unique opportunity to actually heal the root of the problem.

CBD vs THC

Many people are hesitant to use CBD because they know that it comes from the same plant as THC. THC, or tetrahydrocannabinol, is another cannabinoid. This one is largely responsible for many of the psychoactive effects that a person can experience when smoking marijuana.

Marijuana is quite a powerful drug and it’s understandable that some people would want to ensure that they’re not going to get high when using CBD. Rest assured, CBD and THC have vastly different effects, and CBD is not psychoactive at all.

This is interesting because structurally, CBD and THC are almost identical. Their molecules have the same number and same type of atoms; they are simply arranged differently. This contributes to the vast differences in experiences when using these two compounds.

CBD Effects

The interesting thing about CBD is that it will not have many effects if you are not treating an actual problem. That is to say, CBD works by helping to restore balance and function to the endocannabinoid system (ECS), as mentioned earlier. If your endocannabinoid system is in perfect health, then taking CBD won’t do much for you.

Unfortunately, the reality is that most of us have at least some imbalance in our ECS. These imbalances can come from a number of things that we’re exposed to on a daily basis: pollution, stress, unhealthy food, etc.

For these people, CBD is known for providing a number of positive benefits:

  • Reduced inflammation, improving pain and swelling for people with problems like arthritis
  • Increased relaxation and ability to fall asleep
  • Reduced anxiety and depression
  • Improved sociability
  • Improved concentration
  • Improved digestion

All of these benefits can work together to help ward off various illnesses and diseases.

Does CBD Get You High?

CBD does not get you high. As mentioned earlier, the CBD molecule is nearly identical to the THC molecule. However, because of the arrangement of these molecules, the two compounds act entirely different inside the body.

THC directly affects the body whereas CBD indirectly affects the body. This is why THC is much more apparent when ingested than CBD.

CBD Gummies

CBD Products

There are a huge number of different products containing CBD available. The variety in products allows for patients to choose from a number of ways of consuming CBD. The different methods of taking CBD will provide differences in the effects and duration of the substance.

  • CBD oil and tinctures are among the most popular CBD products. These oils and tinctures are so popular that we have dedicated a section to them below.
  • CBD capsules. Capsules are great for oral use but they can also be broken apart and taken sublingually or under-the-tongue. Capsules tend to come on slower than the other methods of using CBD but they also last for a bit longer.
  • Smokeables and vape products are useful for people who have acute problems like pain or panic attacks. These products can be inhaled and the effects felt almost immediately, though they tend to wear off much quicker.
  • Topical products. There are a number of products made with CBD that can be applied directly to the skin. These products are great because the active ingredient can be absorbed into the skin and there won’t be any effects on a person’s mental or physical site except where they apply it.

CBD Oil

CBD oil is one of the most popular forms of using CBD. This is because the oil provides you with a concentrated form of the active extract that can be consumed in a number of ways

The most effective way to use CBD oil is to take it sublingually. This involves holding the oil under your tongue for about 5 minutes so the CBD can be absorbed into the blood vessels there. This causes it to hit you faster and you’ll end up using less of it this way, thus saving money.

CBD oil is also used in the making of a number of other CBD products, like edibles.

CBD Edibles

CBD edibles are one of the most popular ways to consume CBD. People have had great success using CBD oil to make snacks and treats filled with CBD that people can eat. Ranging from CBD gummies to CBD peanut butter, edibles are a great way to medicate yourself.

One of the best things about edibles is that they are more slowly metabolized than the other forms of CBD. This means that the active effects may come on a bit slower but they will linger for much longer.

CBD and Anxiety

One of the most popular uses for CBD gummies and other forms of CBD is for helping people manage anxiety.

Many people were baffled by the implications of this, particularly because THC is well-known for causing anxiety in many people. Folks were wondering how a cannabinoid – especially one so similar to THC – could be used for fighting anxiety.

We’ll discuss the reasoning a bit more in the neurochemistry section below. For now, the simple fact of the matter is that CBD helps to manage anxiety by relaxing the mind and body, as well as balancing out the endocannabinoid system.

CBD has been shown to be useful for fighting all sorts of anxiety, ranging from generalized anxiety to panic disorder. Many have found success using a vape pen to help them manage acute panic attacks. CBD has even been shown to help fight anxiety associated with serious conditions like post-traumatic stress disorder.

CBD and Depression

CBD has proven to be a very exciting alternative for helping people manage depression.

Many traditional antidepressants are known for causing a huge number of side effects. These drugs often take a long time to work – many people have to use them for up to three weeks before these drugs work – and they often have drastic effects on a person’s physical and mental health.

CBD might not be as potent as some of these antidepressants, but it targets the problem in a much more holistic manner. Instead of blunting your emotions or inhibiting your ability to feel depressed by overloading your brain with neurotransmitters, CBD helps you overcome acute symptoms of depression so you’re actually able to identify and heal the root of the problem.

CBD gummies and other forms of CBD are a great tool for helping some people get the treatment that they need to actually eliminate their depression. After this, they can stop using CBD. This is in stark contrast to traditional antidepressants which many people find themselves using for the rest of their lives.

Neurochemistry and CBD

We have touched on the subject of CBD and neurochemistry in this article, but only briefly. In this section we will give a bit more information about the way CBD affects our brain and nervous system.

As mentioned, CBD affects the ECS. This massive system of neurotransmitters and receptors is responsible for governing many facets of our brains and bodies. It helps to regulate our immune system, manage our digestion, regulate our mental health, and generally help to ensure that we function properly.

Unfortunately, many of us have an imbalance in the ECS. CBD works by helping to restore balance to this vast system by indirectly influencing it.

This is one of the reasons that CBD has such vastly different effects than THC. THC directly binds to what are known as cannabinoid receptors. By binding to these receptors, THC can have a direct, immediate, and profound effect on this entire system.

CBD, on the other hand, works indirectly. Not only does it not bind to the receptors, but it actually makes it more difficult for substances like THC to bind to them. Instead, CBD works ‘behind the scenes’ to have a positive and regulatory effect on certain neurotransmitters like dopamine, serotonin, and our own naturally produced cannabinoids.

CBD Dosage

The dosage that one requires when they are using CBD depends on their condition and how serious it is. Dosages vary greatly between people and since CBD hasn’t been approved by federal organizations there is no standard dosage.

However, there are certainly some standards that one could expect to use.

  • People with anxiety may need anywhere from 10 to 50 mg of CBD. 10 mg doses of capsules or oils can be useful for helping to treat mild-to-moderate social anxiety and general anxiety. Higher doses can stave off a panic attack in its tracks.
  • People with pain or inflammation often require slightly higher doses. 20 mg can be effective for mild-to-moderate inflammation, but doses of anywhere from 50-100 mg are quite common.
  • People with depression often take higher doses, beginning at around 50 mg. However, people with melancholy or mild depression caused by situations or events can find some improvement using around 20 mg.

Keep in mind the way that you consume your CBD also has an impact on how much you need. Consuming CBD gummies or tinctures orally causes some of the drug to be destroyed by the liver before it’s absorbed into the bloodstream. Taking it sublingually helps to prevent this and reduces the amount required by about 40 percent.

CBD Side Effects

The vast majority of people won’t experience any side effects from CBD. Aside from the fact that higher doses might make you sleepy and unfit to drive a motor vehicle, CBD won’t cause any serious side effects unless you are allergic to cannabinoids.

That said, some people are extremely sensitive to the compound. These people may experience symptoms like dry mouth, diarrhea, and nausea. However, this may indicate that the medicine was not prepared properly or was produced in a facility with low safety and health standards.

One thing to be noted is that people using THC for recreational purposes might find the effects diminished if they use CBD. However, people who are using THC for medicinal purposes often find that the benefits are enhanced when they are using CBD in addition to THC.

Hopefully, this article has helped you to better understand CBD and the powerful benefits that it can provide for you and those that you love. Good luck healing yourself with this fantastic medicine.

What is Depression?

Depression is a mental health disorder associated with significant morbidity and mortality, being a major risk factor for suicide, substance abuse, poor outcomes of medical conditions, and impaired functionality. It is characterized by flattening of mood, loss of emotional expression, and retardation of thought and movements. Individuals who have depression usually have a depressed mood, loss of interest in activities they were usually interested in, sleep disturbance, loss of energy, and reduced ability to thick or focus.

The American Psychiatric Association’s Diagnostic Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) categorizes depressive disorders into major depressive disorder, persistent depressive disorder, premenstrual dysphoric disorder, disruptive mood dysregulation disorder, and depressive disorder due to a medical condition. However, all these classes of depression are characterized by the presence of a sad or irritable mood with associated difficulty in thinking, concentrating, and carrying out normal physical tasks, impairing the individual’s daily functioning.

Stats about Depression

Between 2009 and 2012, approximately 7.6% of Americans aged 12 and above were diagnosed with depression and it was more common among females and persons aged 40 and 59. In 2015, about 16.1 million adults aged 18 and over had a minimum of one depressive episode in the previous year.

Depression has been found to occur in children at an incidence rate of 0.9% in preschool-aged children, 1.9% in school-aged children, and approximately 4.7% in adolescents. In prepubertal children, depression occurs in boys and girls at an equal rate. Generally, depression in men and women has the highest rates in those aged between 25 to 44 years and the incidence of severe depression increases with age.

What are the Traditional Treatments for Depression?

There is a wide range of treatments for depression which have proven effective in improving symptoms. A combination of medications and psychotherapy is effective in reducing the symptoms of depression, and therapy with either form alone is often ineffective. Combination therapy has been found to increase quality of life and improve treatment compliance in patients with depression.

Advanced treatment techniques used for the treatment of depression include electroconvulsive therapy which uses high-energy electric stimulation, and bright-light therapy involving exposure of an individual with depression to bright light at an intensity of 10,000 lux for a period of one hour in the morning.

Therapy for Depression

Psychotherapy is often combined with medications in the treatment of depression. There are different types of therapy for depression and these can be grouped based on their efficacies. A therapy is considered “efficacious and specific” if studies in at least two settings (hospital, home therapy, rehab center etc.) have proven it more effective than medications. A therapy is considered “efficacious” if it has been proven from at least two settings that it is superior to no treatment at all, and it is “possibly efficacious” if it has been proven effective in at least one study in a single setting.

Examples of efficacious and specific therapies include cognitive behavioral therapy, problem-solving therapy, and interpersonal therapy which help the individual modify their behaviors and interpersonal relationships. An example of an efficacious therapy includes mindfulness-based cognitive therapy to prevent a recurrence or relapse, and an example of possibly efficacious therapy is continuation cognitive therapy to prevent recurrence by helping the individual develop positive thinking and behavioral patterns.

Medications for Depression

Medications used for treating depression are of different classes, each with a different mechanism of action, characteristics, and side effects. Some of these drugs include Fluoxetine (Prozac), Citalopram, Amitriptyline, Imipramine, and Nortriptyline. These drugs generally increase the concentration of stimulant substances in the brain to improve the depressive symptoms.

Home Remedies for Depression

Patients with depression could benefit from a number of home remedies which could help to improve their symptoms, in addition to antidepressants and therapy:

  • St. John’s wort – This plant, although not approved for treatment of depression by the FDA, has been linked with increased amounts of serotonin in the body correlating to improvement of depressive symptoms.
  • Omega-3 fatty acids – Omega-3 fatty acids are commonly found in fish such as salmon, sardines, and trout, and this substance has been linked to improvement in depressive symptoms.
  • SAM-e – S-adenosylmethionine (SAM-e) is artificially designed to function like chemicals in the brain which elevate mood. It is considered a supplement useful in improving symptoms of depression.
  • Folate – Folic acid which is found in a number of foods such as beans, lentils, dark leafy greens, and fortified cereals have been found to improve the effectiveness of medications used in treating the disorder.

What is CBD?

Cannabidiol (CBD) is a naturally occurring chemical compound found in the hemp plant. It is one of the numerous unique compounds called cannabinoids which naturally occur in hemp. Generally, cannabinoids can be produced in the body (these are known as endocannabinoids) or found in the hemp plant as phytocannabinoids. CBD is industrially extracted from the cannabis plant and separated from the other cannabinoids, representing about 40% of cannabis extracts.

CBD is a phytocannabinoid which helps to stimulate the regulation of the central nervous system. CBD, therefore, helps supplement the effects of endocannabinoids in regulating appetite, mood, functions of the immune system, sensation, and keeping our bodies working normally. CBD oil is made from hemp plants and can be purchased legally in the United States. CBD is available in different forms such as tinctures, concentrates, capsules, sprays, tapes, and topicals.

CBD vs. THC

Most times, people interchange CBD for tetrahydrocannabinol (THC), another cannabinoid found in the hemp plant. Both of them represent the commonest compounds found in the plant. However, they have numerous differences.

THC, unlike CBD, is intoxicating causing a high and euphoria. It is responsible for the “high” felt by marijuana users. CBD, on the other hand, is not a psychoactive substance as it does not act via the same biological pathways in the body as THC.

CBD Oil Effects

Although, CBD oil has not been approved by the FDA for the treatment of any condition, there have been several studies demonstrating some of its health benefits:

  • CBD has been shown to have anti-oxidant properties which means that it is capable of mopping up toxic substances obtained from food or generated in the body. These substances are often at the center of inflammatory conditions such as myocardial infarction, inflammatory bowel disease, and stroke.
  • Oxidative stress caused by the release of these toxic substances causes age-related diseases such as Alzheimer’s disease and Parkinson’s disease and CBD has been found to protect against these degenerative diseases of the brain and reduce their clinical progression in patients suffering from them. CBD may also help in the clinical improvement of some autoimmune disease such as lupus and rheumatoid arthritis.
  • Clinical trials have shown that CBD oils are effective in the treatment of epilepsy and other seizure disorders.
  • Studies have shown that CBD may have therapeutic benefits for brain disorders such as psychosis, depression, and multiple sclerosis.
  • Other benefits of CBD are currently being investigated, including its effects on anxiety and depression, as well as on social anxiety disorder and post-traumatic stress disorder.

Does CBD Get You High?

CBD is a non-psychoactive form of cannabinoid which has been found not to interfere with the cognitive functions of the brain. It does not get you “high,” in contrast to THC, which alters the cognitive functions of the brain.

Is CBD Addictive?

According to a recent report by the World Health Organization (WHO), CBD is not addictive and it has no potential for abuse or dependence. This is mainly because CBD does not contain any addictive substances, in contrast to THC and some cannabinoids which contain such and are, therefore, capable of being addictive.

Is CBD Safe?

There have been extensive reviews on the toxic potentials of CBD and reports have revealed that CBD has a relatively low toxicity. It has been found to be safe with little potential for adverse effects. CBD was found to have no effect on fetal development and other bodily functions. Generally, CBD does not produce the adverse effects seen with THC and other psychoactive cannabinoids. However, reports demonstrate that some reactions may occur as a result of its interactions with other drugs co-administered with it.

How Could CBD Help with Depression?

CBD has been found to be effective in the treatment of depression. While CBD does not cure the condition, it has been linked to improvement of the symptoms.

The cannabinoids produced in our bodies (endocannabinoids) help to regulate several functions of the body such as mood, pain sensation, sleep, and appetite. These substances exert their actions by binding to specific points of brain cells called the receptors through which they potentiate the actions of a substance called serotonin which acts to improve mood and reduce stress levels. Serotonin also acts by binding to its receptors in brain cells. When these chemical substances bind to their respective receptors, they trigger a series of events within each brain cell stimulating processes that improve mood and stress control.

CBD has been found to help improve depressive symptoms by modulating the actions of the endocannabinoids and also potentiating the effects of serotonin by enhancing the activity of the receptors unto which serotonin binds.

CBD oil helps to significantly improve depressive symptoms and the individual’s quality of life.

CBD Oil Dosage

CBD oil is available in several forms including tinctures, capsules, concentrates, and topical forms. However, it is most commonly administered orally. It is important to note that CBD is most effective when used regularly in maintenance doses, though it may be used for treating acute flare-ups.

In the management of depression, CBD oil may be taken in the tincture and capsule forms. Individuals with depression can begin with a dose of 5 to 10mg daily until the desired results are achieved. Gel capsules of CBD are available as 25mg per pill and it is safe to begin at this dosage as CBD has a good safety profile. The effects of CBD lasts several hours after a dose is ingested and most persons report feeling better for up to 24 hours. However, you will only begin to notice these improvements after 90 minutes of ingestion of CBD oil.

For managing acute flare-ups, it is best to vaporize CBD isolate for fast relief of symptoms. However, the maintenance dose should not be discontinued. Although you may also use the ingestible forms of CBD in treating acute flare-ups, these, generally, have a relatively longer onset of action.

Generally, it is recommended that you consult with your physician before starting CBD oils to prevent drug interactions and exacerbations of any medical conditions you may have. Do not, also, discontinue or start any drug while using CBD without consulting your physician.

For information on where to obtain CBD Oil, go here.

CBD Oil Side Effects

CBD oil is generally safe to use with minimal risk of adverse effects. Side effects may be seen when high doses are taken. Some studies have revealed that if taken at high doses, it may cause a weakening of your immune system. However, the main concern with the use of CBD is the risk of drug interactions, therefore, it is recommended that you consult your physician before using CBD oil.

Bottom Line: Can CBD Help You?

CBD is one of the naturally occurring chemical substances found in the cannabis plant and though the stigma associated with the psychoactive counterpart, THC, has rubbed off on it, it has been shown to have immense health benefits in treating conditions such as anxiety, depression, mood disorders, and inflammatory diseases. CBD oil helps to significantly improve depressive symptoms and the individual’s quality of life. However, it should be noted that CBD does not provide a cure for the disorder, but leads to a better quality of life for the patient.

Resources

https://emedicine.medscape.com/article/286759-overview#a4

https://www.webmd.com/depression/features/natural-treatments#1

https://www.healthline.com/health/depression/herbs-supplements

https://ministryofhemp.com/wp-content/uploads/2016/10/The-Complete-CBD-Resource.pdf

https://www.royalqueenseeds.com/blog-new-who-report-shows-cbd-is-not-addictive-nor-dangerous-n771

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3648779/

https://keytocannabis.com/blogs/cannabis/cbd-for-depression

https://www.ncbi.nlm.nih.gov/pubmed/24923339

https://www.ncbi.nlm.nih.gov/pubmed/22729452

https://www.ncbi.nlm.nih.gov/pubmed/20002102

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Learn How Ketamine Can Treat Post Traumatic Stress Disorder ICD 10

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Learn How Ketamine Can Treat Post Traumatic Stress Disorder

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

Ketamine-infusion-clinics-across-mi

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.