Ketamine is an anesthetic medication that has gained attention in recent years for its potential to treat anxiety, especially in people who haven’t responded well to traditional therapies. While it was originally used in surgical and emergency settings (and still is), lower doses of ketamine are now used off-label in mental health clinics to help with conditions like treatment-resistant anxiety, depression, and PTSD [1].
Ketamine is typically administered via intravenous (IV) infusion, nasal spray (such as esketamine), or oral lozenges, all under medical supervision. The dose is carefully controlled and much lower than that used for anesthesia.
During treatment, patients are monitored for side effects, and ketamine is usually given as a series of sessions rather than a single dose. It’s often combined with psychotherapy to help patients process thoughts and emotions that come up during or after treatment.
Ketamine therapy is not FDA-approved for the treatment of anxiety disorders, but many clinics use it off-label to do so, and patients report several benefits and a quick reduction in symptoms. Continue reading to learn more about what ketamine is and its growing use as a potential therapy for chronic anxiety when other treatments have failed.
Can Ketamine Treat Anxiety?
Unlike common anti-anxiety medications such as SSRIs or benzodiazepines, ketamine is thought to work on the brain’s glutamate system rather than serotonin or GABA, which allows it to act much more quickly, sometimes within hours instead of weeks.
Ketamine is thought to relieve anxiety by promoting neuroplasticity, the brain’s ability to form new neural connections. One of the most accepted theories is that it increases glutamate activity in certain brain regions, which can help “reset” rigid thought patterns linked to chronic anxiety and fear responses. Many patients report feeling less overwhelmed, more emotionally flexible, and better able to cope with stress after treatment [2].
While ketamine is not a cure and doesn’t work for everyone, research suggests it can be a promising option for individuals with severe or persistent anxiety when other treatments have failed.
How Quickly Does Ketamine Reduce Symptoms of Anxiety?
Ketamine can work surprisingly fast for anxiety compared to traditional medications. While SSRIs or SNRIs often take weeks to build up in the system, many people report noticeable relief within hours to a few days after a ketamine session. For some, the anxiety reduction is immediate but subtle. For others, it unfolds over the next day or two as a sense of mental space or emotional lightness [3].
After a session, it’s common to feel calm, tired, or emotionally open for the rest of the day. Anxiety symptoms may feel quieter, less urgent, or easier to manage, though the effects can fade over time without follow-up treatments.
Possible Side Effects of Ketamine Treatment
Ketamine therapy is typically considered safe and well-tolerated, and most individuals report few side effects. Those who do experience side effects typically report that they go away within the day following treatment. These can include:
- Dizziness/nausea
- Headache
- Blurry vision
- Dissociation (feeling disconnected from the body or surroundings)
- Increase in blood pressure
Interactions and Who Should Avoid Ketamine
Ketamine is not safe for everyone, and before starting your session, you typically are assessed to ensure you meet certain criteria. Ketamine therapy may be ideal for you if you have not found relief from traditional anxiety treatment or medications (often at least two for a 6-8 week course) [1].
If you have any of the following conditions, you may be disqualified from ketamine therapy due to safety interactions or concerns:
- Women who are pregnant, trying to conceive, or breastfeeding
- Those with medical conditions such as heart disease or high blood pressure, or who are prone to neurological disorders such as seizures
- History of psychosis, schizophrenia, or substance use disorders (evaluated on a case-by-case basis)
- Those with a history of bipolar disorder and who show manic symptoms may be disqualified from treatment
Ketamine As A Complement to Traditional Anxiety Treatment
Ketamine therapy is often used as an integrative therapy rather than a standalone treatment. By rapidly reducing symptom intensity and increasing neural flexibility, ketamine can create a therapeutic “window” in which patients are more receptive to insight, behavioral change, and emotional processing. This can be especially valuable for individuals whose anxiety has been resistant to conventional approaches alone.
When combined with traditional treatments such as psychotherapy or medication, ketamine may help patients engage more deeply and consistently in standard care. Reduced anxiety symptoms can make it easier to tolerate exposure-based therapies, reflect during talk therapy, and rebuild daily routines that anxiety impacted.
Lifestyle changes also play an important role in sustaining gains made during ketamine therapy. A stable foundation of sleep, movement, and stress regulation also encourages neuroplastic changes and reduces the likelihood of symptoms returning [4].
Ketamine Therapy for Anxiety in Utah
If you’ve already tried conventional methods of mental health treatment with no relief, ketamine may be an ideal option for you. At Maple Mountain Mental Health and Wellness, we provide personalized treatment planning and licensed ketamine therapy to address chronic anxiety, treatment-resistant depression, and emotional blocks from trauma.
We require clients receiving ketamine therapy to also be in traditional therapy, either with one of our therapists or an outside provider. Contact our admissions team to learn if you are a good candidate for ketamine assisted therapy today.
Sources
[1] Gupta, V. et al. 2024. Ketamine. Stats Pearl.
[2] Krystal, J. et al. 2023. Ketamine and the neurobiology of depression: Toward next-generation rapid-acting antidepressant treatments. PNAS.
[3] Healthline. 2025. Ketamine Therapy for Anxiety.
[4] Huang, ZL. Neural Plasticity Is Involved in Physiological Sleep, Depressive Sleep Disturbances, and Antidepressant Treatments. Neural Plast. 2017;2017:5870735.
