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What is ketamine therapy?

Carli Simmonds, Author

Carli Simmonds

what is ketamine therapy?

One of the most discussed breakthroughs in recent years, ketamine treatment is gaining traction for its ability to support people experiencing treatment-resistant depression, bipolar disorder, chronic pain, and other psychiatric disorders, especially when other interventions haven’t worked.

Originally used as a general anesthetic, ketamine is now being studied for its rapid effects in reducing depressive symptoms, especially for individuals at risk of suicide or in acute emotional crisis.

As public interest grows, understanding the science behind ketamine-assisted psychotherapy, its risks, benefits, and accessibility, is a vital step toward informed mental health decisions.

At Red Ribbon Recovery Indiana, we believe in equipping individuals and families with accurate, research-backed information about emerging treatments for mental disorders, including promising innovations like ketamine therapy.

How ketamine treatment for depression works

Unlike traditional antidepressants that target serotonin or dopamine pathways and may take weeks to build effect, ketamine interacts with the brain’s glutamate system, specifically the NMDA receptor.

This helps “reset” neural pathways damaged by long-term stress, trauma, or major depressive disorder. The result is often a fast-acting improvement in depressive symptoms—sometimes within hours or days.

Ketamine is classified as a psychoactive drug and produces dissociative effects, which means users may experience changes in perception, time, or awareness during treatment. In medical settings, it is typically administered in low, controlled doses through:

  • Intravenous (IV) infusions
  • Intramuscular (IM) injections
  • Nasal sprays like esketamine (Spravato®), an FDA-approved treatment for certain depressive disorders
  • Oral lozenges in some off-label therapy models

It’s important to note that aside from esketamine, many forms of ketamine treatment are considered “off-label.” This means they are not officially FDA approved for depression, and as a result, insurance rarely covers the costs.

Additionally, some of the lingering stigma around ketamine stems from its reputation as a party drug or psychedelic drug—despite its very different use in clinical, therapeutic settings.

High doses of ketamine infusions can come with potential risks. Patients typically paid out of pocket for ketamine treatments for anxiety or to treat depression. Esketaminenasal spray | general anesthesia | Vietnam war | European Journal | Anxiety |Patients | Substance Use

Benefits and risks of ketamine assisted psychotherapy

Like any emerging intervention in mental health, ketamine therapy offers both remarkable potential and important clinical considerations.

For individuals facing treatment-resistant depression, chronic pain, or other psychiatric disorders, ketamine use has shown life-changing benefits—especially when traditional conventional antidepressants or talk therapy have not been effective.

When provided in a structured environment such as specialized ketamine clinics, potential benefits may include:

  • Rapid reduction in depressive symptoms, often within hours
  • Relief from suicidal ideation
  • Disruption of entrenched thought patterns through dissociative or psychoactive mechanisms
  • Enhanced neuroplasticity and brain connectivity, especially in areas affected by major depressive disorder
  • Increased responsiveness to psychotherapy during or after treatment

Ketamine’s mechanism of action is unique. As an NMDA receptor antagonist, it interacts with the brain’s glutamate system, promoting synaptic growth and repair.

Some research also suggests it may engage opioid receptors, adding a layer of complexity to its role in both pain research and psychiatric care.

However, ketamine is not a one-size-fits-all solution. There are known risks and limitations.

Side effects of ketamine therapy may include:

  • Dissociative effects or altered perception
  • Nausea, dizziness, and increased blood pressure
  • Mild to moderate hallucinations
  • Emotional disorientation following sessions

In rare cases or under unsupervised use, repeated dosing can lead to increased tolerance, dependence, or misuse. This is especially important in individuals with a history of substance abuse or mental illness.

While FDA-approved esketamine (Spravato®) has cleared regulatory hurdles for specific uses, many compound ketamine products used in clinical settings remain off-label and are not covered by insurance.

This underscores the importance of working with experienced health care providers who can carefully monitor ketamine use and integrate it into a holistic, long-term recovery plan.

When approached ethically and medically, the benefits of ketamine therapy may outweigh the risks for many individuals, but only under professional guidance.

How ketamine compares to other therapies

Ketamine therapy represents a novel and increasingly studied option within the broader landscape of depression treatment, especially for patients who have not responded to traditional forms of care such as regular antidepressants or psychotherapy.

While selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs) are typically prescribed for daily use and may take several weeks to produce noticeable effects, the effects of ketamine can emerge within hours or days, even for those experiencing severe depression.

Unlike cognitive behavioral therapy (CBT) or other talk therapies that require long-term engagement, ketamine may facilitate emotional breakthroughs more rapidly. It’s often used as a complementary therapy for individuals facing treatment-resistant depression who’ve reached a plateau with other treatments.

In clinical settings, patients may undergo a structured series of ketamine infusions, often starting with six infusions over a short period, followed by maintenance doses as needed. Due to its potential side effects and strict FDA approval protocols, esketamine nasal spray (Spravato®) must be administered in a certified doctor’s office under the supervision of trained professionals.

Though the typical risks of ketamine are manageable in a clinical setting, the decision to use it should always be made with guidance from a licensed provider, and while many clinical trials continue to explore ketamine’s role in treating other mental disorders, it remains one of the most promising tools for individuals navigating complex and persistent mood challenges.

Ketamine works for patients in low doses as esketamine nasal spray or ketamine infusions. This has been approved by the FDA. the NMDA receptor antagonist is activated and patients can find relief from anxiety and other ailments. Post traumatic stress disorder, major depressive disorder, psychiatric disorders, and more can be addressed with ketamine infusions.

What ketamine therapy may help with

Clinical studies and many ketamine clinics across the country continue to investigate how ketamine-assisted psychotherapy and low-dose infusions can help treat disorders that have resisted conventional treatment approaches. While not considered a first-line treatment, ketamine is increasingly used to support individuals facing complex or urgent mental health needs.

Research and practice suggest ketamine therapy may be effective for conditions such as:

  • Treatment-resistant depression
  • Bipolar depression
  • Major depressive disorder
  • Post-Traumatic Stress Disorder (PTSD)
  • Anxiety disorders
  • Suicidal ideation
  • Chronic pain syndromes
  • Certain substance use disorders

Who might not be a candidate for ketamine

Although ketamine therapy is promising, it’s not suitable for everyone. Individuals with certain health or psychiatric conditions may be advised to explore other forms of treatment first.

People who may not be good candidates include:

  • Individuals with a history of psychosis or schizophrenia
  • Those with uncontrolled high blood pressure
  • People actively struggling with substance misuse
  • Anyone with known sensitivities to psychoactive drugs or dissociatives

Additionally, because ketamine can affect cognition and perception, it may not be appropriate for individuals with certain neurological conditions or those currently taking contraindicated medications. That’s why screening and evaluation are critical to ensure safe, ethical care.

Ketamine infusions at sanctioned ketamine clinics can be an effective method used to treat depression, psychiatric disorders, mental disorders, and other various mental health conditions | nasal spray | Ketamine infusions | esketamine nasal spray | patients | ketamine infusions | ketamine infusions

The future of ketamine clinics in mental health care

As research into psychedelic drugs and advanced psychiatric treatments grows, ketamine is quickly becoming one of the most studied and sought-after options for individuals facing treatment-resistant depression and other mental health conditions.

New clinical trials are underway to explore how ketamine and similar agents may be used to treat a broader spectrum of psychiatric disorders, including bipolar disorder, OCD, and even chronic suicidality.

Scientists are also exploring how ketamine interacts with psychotherapy, potentially enhancing emotional breakthroughs and accelerating personal insight.

While the future of ketamine therapy is still evolving, many experts agree: this medication is changing the landscape of mental health treatment, providing rapid relief for those who have long been left behind by traditional care.

Before you decide

At Red Ribbon Recovery Indiana, we do not currently offer ketamine therapy, but we are committed to supporting individuals and families in making informed choices about all available treatment paths.

Our focus is on comprehensive care, education, and guidance—whether you’re pursuing traditional therapy, considering advanced interventions, or navigating recovery options for complex mental health conditions.

If you or a loved one is curious about treatment-resistant depression or seeking support in exploring other mental health treatment options, our team is here to help.

We can connect you with resources, talk through your questions, and support your journey toward clarity, stability, and healing.

Works Cited

Drug Enforcement Administration (DEA). Ketamine. U.S. Department of Justice, June 2020, https://www.dea.gov/sites/default/files/2020-06/Ketamine-2020.pdf.

Substance Abuse and Mental Health Services Administration (SAMHSA). Mental Health Facilities Offering Ketamine Infusion Therapy in the United States, 2020: Co-location and Dual Services. Center for Behavioral Health Statistics and Quality, 2020, https://www.samhsa.gov/data/publication/mental-health-facilities-ketamine-infusion-therapy-united-states-2020-co-location-dual.

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About the content

Last updated on: Jun 11, 2025
Jodi Tarantino (LICSW)

Written by: Carli Simmonds. Carli Simmonds holds a Master of Arts in Community Health Psychology from Northeastern University. From a young age, she witnessed the challenges her community faced with substance abuse, addiction, and mental health challenges, inspiring her dedication to the field.

Jodi Tarantino (LICSW)

Medical reviewed by: Jodi Tarantino, LICSW. Jodi Tarantino is an experienced, licensed Independent Clinical Social Worker (LICSW) and Program Director with over 20 years of experience in Behavioral Healthcare. Also reviewed by the RRR Editorial team.

Red Ribbon Recovery is committed to delivering transparent, up-to-date, and medically accurate information. All content is carefully written and reviewed by experienced professionals to ensure clarity and reliability. During the editorial and medical review process, our team fact-checks information using reputable sources. Our goal is to create content that is informative, easy to understand and helpful to our visitors.

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