Esketamine is a relatively new and innovative treatment for people struggling with treatment-resistant depression (TRD). Approved by the FDA in 2019 under the brand name Spravato, esketamine represents a significant advancement in psychiatric care. Administered as a nasal spray in a medical setting, it provides an alternative for those who haven’t found relief through traditional antidepressants or therapy alone. While not a cure, esketamine can offer real, rapid symptom relief for many individuals facing persistent and severe depression.
What Is Esketamine?
The time you’ll spend in the clinic for each TMS session has evolved significantly with advancements in technology and treatment protocols.
Esketamine is a form of ketamine, a medication historically used for anesthesia and pain relief. Ketamine contains two mirror-image molecules, known as enantiomers: esketamine and arketamine. Esketamine is the “S” enantiomer and is believed to be more potent in its antidepressant effects. Unlike traditional antidepressants that typically target serotonin or norepinephrine, esketamine works on a different brain pathway—glutamate—which is involved in neural communication and synaptic plasticity. This difference in mechanism may explain its rapid impact on mood symptoms.
How Is Esketamine Used?
Esketamine is delivered via a nasal spray, but it’s not something you pick up at a pharmacy and take at home. Because of its potential side effects and need for monitoring, it must be administered in a certified clinic or treatment center under the supervision of a trained healthcare professional. After administering the nasal spray, patients remain in the clinic for at least two hours for observation.
Typically, esketamine treatment starts with two sessions per week for the first four weeks. After that, the frequency may decrease to once a week or every two weeks, depending on the individual’s response and their doctor’s recommendation. It is always used in conjunction with an oral antidepressant to maximize its effectiveness and maintain mood stability.
Who Might Benefit from Esketamine?
Esketamine is specifically approved for adults with treatment-resistant depression—meaning people who haven’t experienced sufficient improvement after trying at least two other antidepressants. It’s also approved for use in adults with major depressive disorder (MDD) who are experiencing acute suicidal thoughts or behaviors, though the goal here is to provide rapid symptom relief while longer-term care plans are put in place.
This treatment can be a hopeful option for those who feel like they’ve exhausted all other avenues. Depression can be incredibly isolating, and when medications and therapy seem to fall short, options like esketamine offer a much-needed alternative.
What Are the Effects of Esketamine?
Many people report feeling a noticeable change within hours to days of their first esketamine treatment. Improvements may include reduced suicidal ideation, increased motivation, better sleep, and a more stable mood. However, responses vary, and not everyone experiences immediate benefits. It’s important to remember that esketamine is not a one-size-fits-all solution.
Some common side effects can occur, including dizziness, nausea, increased blood pressure, dissociation (a sense of detachment from self or surroundings), and sedation. These effects typically wear off shortly after the treatment session, which is why post-treatment monitoring is required. The majority of these symptoms are mild to moderate and transient.
Combining Esketamine with Other Therapies
Esketamine is most effective when it’s part of a comprehensive treatment plan. This means it’s used alongside oral antidepressants and often coupled with talk therapy or other supportive treatments. The goal is not just symptom relief but long-term recovery and emotional resilience. Many clinics emphasize the importance of ongoing psychological care even after the esketamine phase concludes.
Is Esketamine Safe?
When administered in a controlled, clinical setting, esketamine is considered safe for eligible patients. Because it has a potential for misuse (due to its connection with ketamine), it’s only available through certified healthcare providers and facilities enrolled in a special program called the Risk Evaluation and Mitigation Strategy (REMS).
A Hopeful Step Forward
For individuals dealing with persistent, treatment-resistant depression, esketamine offers a glimmer of hope. It opens a new door for people who’ve spent years trying to manage symptoms without success. While it isn’t for everyone and isn’t a standalone solution, its ability to provide fast-acting relief makes it a powerful tool in the mental health toolbox.
If you or someone you love is struggling with depression that hasn’t responded to treatment, exploring esketamine or other innovative therapies like Transcranial Magnetic Stimulation (TMS) could be a meaningful step forward. Always speak with a qualified mental health provider to determine the best treatment path for your individual needs.
Esketamine FAQs
Sources:
SPRAVATO® Official Website – Learn About Esketamine Nasal Spray https://www.spravato.com/
Mayo Clinic – Esketamine (Nasal Route): Uses and Side Effects https://www.mayoclinic.org/drugs-supplements/esketamine-nasal-route/description/drg-20458442
MedlinePlus – Esketamine Nasal Spray: Drug Information https://www.medlineplus.gov/druginfo/meds/a619017.html
Johns Hopkins Medicine – Esketamine for Treatment-Resistant Depression https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/esketamine-for-treatment-resistant-depression
Drugs.com – Spravato (Esketamine) Dosage Guide https://www.drugs.com/dosage/spravato.html