How Medical Ketamine & Esketamine Treatment Actually Works

Two related medications, two different regulatory stories

"Ketamine therapy" as a phrase covers two things. Esketamine — brand name SPRAVATO® — is an FDA-approved nasal spray for adults with treatment-resistant depression and for depressive symptoms in adults with major depressive disorder with acute suicidal thoughts or actions; it's administered in certified treatment centers under a federally required safety program, and being FDA-approved for those uses, it's the form insurance commonly covers when criteria are met. Generic ketamine used for depression is prescribed off-label — a legal, common medical practice in which physicians use an approved medication beyond its original approval — typically as supervised in-clinic treatment, usually paid out of pocket.

What a course looks like

Rather than a single dose, treatment is structured as a course: an evaluation first, then a series of sessions over the initial weeks, then reassessment — with any continuing treatment decided by response. Every session in supervised programs includes an in-clinic monitoring period before you leave with your ride.

Why supervision is the whole model

The clinical structure isn't ceremony. It exists because the medication temporarily alters perception and blood pressure, because screening determines who's an appropriate candidate in the first place, and because the difference between medical treatment and misuse is precisely the presence of evaluation, protocol, monitoring, and follow-up. When you see "medically supervised" in treatment descriptions, that's the substance behind the phrase.

Where it fits in depression care

These treatments are generally considered when standard approaches — typically including antidepressant medication — haven't provided adequate relief. That's written into esketamine's approval itself, which is defined around treatment-resistant depression. The evaluation conversation with a psychiatric clinician is where "is this appropriate for me" actually gets answered.

Frequently asked questions

What's the difference between ketamine therapy and SPRAVATO®?
SPRAVATO® (esketamine) is FDA-approved for specific depression indications and administered in certified centers under a federal safety program, with insurance commonly covering it when criteria are met; generic ketamine for depression is prescribed off-label and typically self-pay.
Is ketamine treatment a one-time thing?
No — it's structured as an evaluated course of sessions with reassessment, not a single dose.
Who is ketamine or esketamine treatment for?
Generally adults whose depression hasn't responded adequately to standard treatment — which is exactly what the evaluation with a psychiatric clinician determines.

Nothing on this site is medical advice.