Anxiety disorders are among the most common mental health conditions in the United States, affecting millions of people across every walk of life. For many, standard treatments (therapy, medication, or both) provide meaningful relief. But for a significant number of patients, conventional approaches fall short, leaving them searching for something more effective.
Ketamine, a dissociative anesthetic with a decades-long history in clinical medicine, has emerged as a compelling option for people who haven’t found adequate relief from traditional anxiety treatments. Research into ketamine’s effects on anxiety disorders is growing, and many patients are asking whether it might be right for them.
Here’s what the clinical evidence tells us.
How ketamine may work for anxiety
Ketamine’s potential effects on anxiety are rooted in its unique mechanism of action. Unlike most psychiatric medications, ketamine works primarily by blocking N-methyl-D-aspartate (NMDA) receptors in the brain and modulating glutamate signaling, a neurotransmitter system central to mood regulation, memory, and learning. Researchers believe this dual effect may help restore synaptic plasticity: the brain’s ability to form new, healthier neural
connections and break free from entrenched anxiety-driven thought patterns.
Chronic stress and persistent anxiety can dysregulate glutamate balance, impairing the brain’s natural adaptability over time. Clinical evidence suggests ketamine may help counteract this process, promoting neuroplasticity and potentially offering relief where other medications have not. As with all emerging treatments, the full picture of how ketamine works is still being studied, but the early findings are encouraging.
Ketamine vs. conventional anti-anxiety medications
Most first-line anti-anxiety medications, including SSRIs and SNRIs, work by modulating serotonin and related neurotransmitters, and they can take two to six weeks to produce meaningful symptom relief. Ketamine takes a different path, acting directly on the glutamate system and producing effects that may be felt within hours of a single infusion.
This rapid onset is clinically significant for people living with severe or treatment-resistant anxiety. That said, ketamine is not intended to replace first-line treatments: it is usually considered when conventional approaches have been tried and have not provided sufficient relief or when side effects from other medications have been intolerable.
What the research says about ketamine for anxiety
The evidence base for ketamine’s use in depression is substantial. Research into anxiety disorders is newer but growing steadily, with several studies and systematic reviews now supporting ketamine’s potential as a treatment for multiple anxiety disorders.
Generalized anxiety disorder and social anxiety disorder
In a study examining weekly ketamine treatments in people with generalized anxiety disorder (GAD) and social anxiety disorder, patients reported rapid reductions in anxiety following treatment, with effects lasting up to seven days after a single dose. This study found that single-dose ketamine infusions reduced panic, irritability, and anxiety symptoms in people with GAD and social anxiety disorder, with effects persisting for up to two weeks.
Notably, higher doses were associated with stronger effects, and repeated treatments appeared capable of sustaining relief for months. As with all research in this area, most studies involved relatively small patient populations, and these findings reflect off-label use: factors worth acknowledging alongside the promising results.
Phobias
Research into ketamine for specific phobias has produced early, encouraging results. A 2021 study found that subcutaneous ketamine injections reduced patient-reported ratings of agoraphobia and social phobia, suggesting that ketamine may have a role to play across a broader spectrum of anxiety-related conditions.
Obsessive-compulsive disorder
A 2021 systematic review found that ketamine can rapidly reduce symptoms of obsessive-compulsive disorder (OCD), though these benefits have generally been temporary in duration. Researchers are actively investigating whether combining ketamine with psychotherapy, sometimes called ketamine-assisted psychotherapy (KAP), may produce more durable results for people with treatment-resistant OCD.
“My patient was struggling with severe OCD and treatment-resistant depression, and we had reached a point where various medications hadn’t really brought any relief. After exhausting conventional treatment options, we discussed ketamine as a potential next step, and decided to move forward. The results astounded me – he saw almost immediate, very significant improvement. The patient called me the day after his first appointment, excited to share that his nightly passive ideation was gone. The team at Keta is collaborative – they keep me informed, and the results have been meaningful.”
Treatment-resistant anxiety
Perhaps the most clinically relevant finding for many patients considering ketamine: studies suggest that approximately 50% of people with GAD meet criteria for treatment-resistant anxiety, meaning they do not experience meaningful improvement after an adequate course of anti-anxiety medication.
For this population, a 2021 review concluded that ketamine may be a safe and effective alternative, particularly when administered as a series of infusions under medical supervision. Ketamine is not a first-line option, but for patients who have already tried conventional treatments without sufficient relief, it represents a clinically meaningful next step worth discussing with a qualified provider.
Research into ketamine for anxiety disorders is still evolving. All of the uses described above are off-label, meaning ketamine is being used in ways not yet formally approved by the FDA for anxiety specifically. Off-label prescribing is a well-established and legally sanctioned practice in medicine, and our clinical team will discuss the evidence, potential benefits, and limitations with you during your consultation.
Who may be a good candidate for ketamine therapy for anxiety?
Ketamine therapy is not appropriate for everyone, and we don’t treat it as a universal solution. At Keta Medical Center, we evaluate each patient individually, taking a thorough history to understand their diagnosis, prior treatments, and overall health before making any recommendations.
The patients who struggle with anxiety and are good candidates for ketamine therapy are those who:
- have not achieved adequate relief from one or more standard anti-anxiety treatments (medication, therapy or both)
- are experiencing anxiety symptoms that significantly impair daily functioning, relationships or quality of life
- are currently under the care of a mental health provider and are looking for adjunctive or alternative clinical support
- are medically eligible after a thorough screening by our clinical team
If you recognize yourself in that description, a conversation with our team is a reasonable next step. An evaluation, not a commitment, is how we begin.
Who should not pursue ketamine therapy?
Ketamine therapy is not for everyone. Our clinical team screens for certain disqualifying factors before any treatment begins, but as a general guide, ketamine therapy may not be appropriate for people with:
- a history of psychosis or a diagnosis of schizophrenia
- an active substance use disorder
- pregnant or trying to conceive
This list is not exhaustive. If you have questions about your eligibility, the best thing to do is schedule a consultation with our team. We’ll review your full medical history and help you understand whether ketamine therapy is a safe and appropriate option for you.
What to expect during a ketamine therapy session at Keta Medical Center
We know that the idea of starting a new treatment can feel daunting, especially for people who have already been through the frustrating cycle of trying approaches that haven’t worked. Our goal is to make the experience as clear, comfortable, and supportive as possible from the first conversation forward.
Ketamine therapy at Keta Medical Center is administered in a private, calm clinical environment, with a physician or qualified clinician present throughout your session. We offer two delivery methods:
- Ketamine infusion (IV ketamine): Delivered intravenously in a controlled clinical setting. A typical session lasts approximately 90 minutes, with effects beginning within minutes of administration. You will rest in a private room while our team monitors you throughout.
- Spravato® (esketamine nasal spray): Spravato is an esketamine-based nasal spray that is FDA-approved for treatment-resistant depression. A typical session lasts approximately two hours, including required monitoring time after administration. It may be considered when anxiety occurs alongside depression, which is common: research shows comorbid anxiety disorder and major depressive disorder occurs in as many as 60% of cases, and among people with either clinically significant depression or anxiety, nearly 50% have comorbid disorders. Spravato® sessions typically last approximately two hours, including monitoring time after administration.
Regardless of which treatment method is right for you, effects begin within minutes and resolve fully within a few hours. You will be monitored after your session before you are cleared to leave, and you will need to arrange a driver for the day of treatment. Please do not drive or operate machinery on the day of your appointment.
Many patients tell us that knowing exactly what to expect before their first session makes a meaningful difference, and we always encourage you to come with questions.
Common experiences and safety considerations
Ketamine therapy involves low, carefully controlled doses administered under direct medical supervision. Most patients tolerate it well. That said, we believe in full transparency about what you may experience.
It’s common to experience some of the following during or after treatment:
- Dissociation: a temporary sense of detachment from your surroundings, which typically resolves as the medication clears. This is normal and is part of what helps patients heal.
- Nausea or mild lightheadedness
- Elevated blood pressure or heart rate
- Temporary visual changes or mild drowsiness
These effects are generally short-lived and resolve within a few hours. Our clinical team monitors patients throughout every session and is trained to respond promptly to any discomfort.
Every patient at Keta Medical Center undergoes a thorough safety screening before treatment begins. We do not administer ketamine therapy without first understanding your full medical history, current medications, and any factors that might affect how you respond to treatment.
Your safety is the foundation of everything we do.
How to get started with ketamine therapy for anxiety
Taking the first step is often the hardest part. At Keta Medical Center, we’ve designed our intake process to be straightforward and supportive.
Here’s how it works:
- Initial consultation: We review your medical history, current medications, prior treatments, and anxiety symptoms in detail. This is a two-way conversation: you’ll have the opportunity to ask questions and discuss your goals.
- Safety screening: One of our doctors personally evaluates your eligibility for ketamine therapy and speaks with your providers, reviewing any factors that could affect safety or treatment outcomes.
- Personalized treatment plan: If ketamine therapy is appropriate for you, we’ll develop a plan tailored to your specific situation, including the recommended delivery method, frequency, and supporting care.
Keta Medical Center has locations throughout New York and New Jersey. To learn whether ketamine therapy may be appropriate for your anxiety, we invite you to contact us to schedule a consultation.
