But in recent years, it has gained attention as a powerful treatment option for depression and anxiety.
This rapid effect has given hope to people dealing with mental health challenges, especially those who haven’t found relief with other treatments. But how does ketamine improve mood and anxiety so quickly? Here’s what science says so far.
What Is Ketamine and How Did It Become a Treatment for Mental Health?
Today, ketamine is the still used in the hospitals or for veterinary purposes. One major benefit is that it doesn’t slow down breathing as much as other anesthetics.
Back in the early 2000s, doctors noticed something interesting: Patients given ketamine for surgery or pain often felt emotionally better afterward. Researchers began exploring this effect, and by 2006, studies showed that even a single low dose of ketamine could rapidly reduce symptoms of depression, even in people who hadn’t responded to other medications.
Since then, many studies have confirmed these findings, and ketamine is now used in specialized clinics to help treat:
- Depression
- Anxiety
- PTSD
- Other mental health conditions
Ketamine and the Glutamate System
Glutamate plays a key role in sending signals between brain cells, especially in areas that control memory, mood, and thinking. Ketamine blocks NMDA receptors in the brain that usually respond to glutamate. But instead of lowering glutamate levels, this action causes a sudden increase in glutamate in parts of the brain such as the prefrontal cortex, which is linked to mood regulation and decision-making.
This spike in glutamate activity helps “wake up” parts of the brain that may be less active in people struggling with depression.
How Ketamine Helps the Brain Rebuild Itself
When glutamate levels rise after taking ketamine, another receptor called AMPA is activated. This sets off a series of reactions that boost the production of a protein called BDNF (brain-derived neurotrophic factor).
At the same time, ketamine activates mTOR, a protein that controls how cells create the proteins needed for building these new connections. In short, ketamine helps the brain repair and rebuild itself, especially in areas affected by stress and depression.
Fast Relief for Depression and Anxiety
For someone dealing with suicidal thoughts or severe anxiety, that wait can feel impossible.
Ketamine, however, can provide relief within hours. Studies have found that a single infusion can reduce symptoms in people with treatment-resistant depression, anxiety, PTSD, or bipolar depression.
Typically, the effects last about a week, though some individuals feel better for longer. To keep up the results, patients often need repeated doses under medical supervision.
Types of Ketamine Treatments
Two main types of the ketamine are used for the mental health treatments:
Racemic ketamine
This original form includes equal amounts of two mirror-image molecules, known as R-ketamine and S-ketamine, and is typically given as an IV infusion.
Esketamine
This nasal spray uses only the S-ketamine molecule. Known under the brand name Spravato, it’s FDA-approved and often used alongside other medications in clinics.
Both forms are effective, but some studies suggest that R-ketamine might have longer-lasting effects with fewer side effects. Research continues to determine which type works best for each person.
What Does Ketamine Feel Like?
Many people describe feeling dissociated after taking ketamine, as if they’re floating, dreaming, or observing themselves from outside their body. This sensation usually lasts 30 to 60 minutes and fades afterward.
While some find the experience strange or unsettling, others describe it as deeply meaningful or enlightening. Researchers are still debating whether this dissociative state is necessary for ketamine’s antidepressant effects or if it’s simply a side effect.
Regardless, clinics closely monitor patients during treatment to ensure they remain safe and comfortable. Make sure to consult experts to learn more about ketamine assisted therapy.
Are There Any Risks?
Ketamine isn’t a cure-all and isn’t suitable for everyone. Some short-term side effects include:
- Dizziness
- Nausea
- High blood pressure
- Sensory changes or confusion
With frequent or high doses—especially when used outside medical supervision—ketamine can lead to:
- Addiction
- Bladder issues
- Memory or cognitive problems
That’s why ketamine treatments for mental health are always provided in controlled environments, with trained professionals overseeing each session. Patients are also screened to check for any history of substance abuse or medical conditions that may increase risks.
The Future of Ketamine and Mental Health
Ketamine has introduced a new way of thinking about treating mental health conditions. Rather than only focusing on chemical imbalances like serotonin or dopamine, researchers are looking at how depression and other conditions relate to brain plasticity and connection issues.
New drugs are being developed to mimic ketamine’s effects while reducing side effects. There is also growing interest in combining ketamine with therapy to make its benefits deeper and longer-lasting.
At the same time, research on psychedelics such as psilocybin (found in magic mushrooms) and MDMA is expanding.
Consider Using Ketamine Today
Ketamine is becoming one of the most promising treatments for mood and anxiety disorders. It works quickly, encourages the brain to build new connections, and offers hope to people who haven’t found relief with traditional medications.
While there are risks involved, supervised medical use has proven to be safe and effective for many. Ketamine shows that healing isn’t only about changing brain chemicals—it’s also about helping the brain reconnect and rebuild.
