Ketamine treatment in 2026: routes, conditions, costs, and how to choose a clinic

Ketamine has moved from operating rooms to outpatient clinics in under a decade. This guide is the starting point for everything else on this site: what ketamine treatment actually involves, which conditions it is approved or studied for, what the different routes of administration look like, and how to tell a well-run clinic from a risky one.

The short version

One ketamine-based medicine is FDA-approved for psychiatric use: esketamine nasal spray, sold as SPRAVATO®, for adults with treatment-resistant depression or depressive symptoms with acute suicidal ideation or behavior 1. Everything else — IV ketamine infusions, intramuscular injections, and oral or sublingual ketamine used for mood, anxiety, PTSD, OCD, or pain — is off-label. Ketamine itself remains FDA-approved as an anesthetic; the psychiatric and pain uses are what are off-label.

Off-label is not automatically unsafe or experimental fringe medicine. For treatment-resistant depression in particular, the IV evidence base is substantial. But off-label means insurers usually will not pay, protocols are not standardized, and clinic quality varies widely — which is why the vetting questions in our guide to choosing a clinic matter.

The routes of administration

IV ketamine infusion. Racemic ketamine delivered slowly into a vein over 40–60 minutes in a monitored room. The most-studied route for depression and the standard for chronic pain programs. You stay awake; most people describe a floating or dissociative sensation that fades within an hour or two.

IM ketamine injection. An intramuscular shot that absorbs over roughly 15–30 minutes. Used where IV access is impractical and by some clinics for maintenance between courses.

Oral and sublingual ketamine. Tablets or lozenges, usually at much lower doses than IV, taken in a clinic or — controversially — at home. See our article on oral ketamine at home and what the evidence actually says.

Esketamine nasal spray (SPRAVATO®). Self-administered under observation in a REMS-certified setting, with at least two hours of monitoring afterward. It is the only route insurance routinely covers for approved uses — see what insurance typically covers.

Ketamine-assisted psychotherapy (KAP). Ketamine sessions paired with structured psychotherapy. A growing but not standardized field; ask any clinic exactly what their protocol includes.

Which conditions the guides cover

We maintain a dedicated guide for each condition ketamine-based treatment is used for:

• Treatment-resistant depression — the strongest evidence, and the only approved population (via esketamine)
• Depression (MDD) — including the approved acute suicidal ideation indication
• Anxiety disorders — early but growing evidence
• PTSD — mixed trial results, active research
• Chronic pain — long-standing off-label use in pain medicine
• OCD — the thinnest evidence; largely experimental

Each guide separates approved use, promising evidence, and unproven claims — and each links to our clinic directory.

Safety in one paragraph

The FDA label for esketamine carries boxed warnings for sedation, dissociation, respiratory depression, abuse and misuse, and suicidal thoughts and behaviors 1. Off-label IV, IM, and oral ketamine share related risks, including elevated blood pressure. That is why reputable programs supervise dosing closely: SPRAVATO® nasal spray, although self-administered, is dosed only in a REMS-certified setting under a provider's observation, and IV and IM ketamine are given in the clinic with monitoring. Oral at-home programs offer far less supervision — see our article on oral ketamine at home. Our article on ketamine safety, side effects, and who should avoid it covers this in detail.

What it costs

Off-label IV and IM ketamine are usually self-pay, with commonly reported ranges of a few hundred to around a thousand dollars per session — our cost breakdown explains what drives the price. SPRAVATO® for approved uses is frequently covered, though prior authorization is standard.

Choosing a clinic

The single biggest quality variable in ketamine treatment is the clinic. Look for medical supervision at every dose, screening that rules out uncontrolled blood pressure, psychosis history, or active substance misuse, transparent pricing, and honest answers about what the evidence supports. Our 10-question clinic vetting checklist walks through it, and every listing in our provider directory shows location, contact, insurance, and monitoring details so you can compare before you call.

If you are in crisis, call or text 988 for the Suicide & Crisis Lifeline.

Sources

1. FDA Prescribing Information for SPRAVATO® (esketamine), revised January 2025: https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/211243s016lbl.pdf. This report is educational and is not medical advice. Where we describe practical patterns (costs, protocols, clinic practices) that are not in the label, that is editorial interpretation based on publicly reported information — verify specifics with any clinic you contact.