How Ketamine Treatment Is Delivered
This page describes common administration methods at a high level for educational purposes. It is not a prescription, recommendation, or endorsement of any specific provider or protocol.
Intravenous (IV) infusion
Subanesthetic IV ketamine has the most extensive research base for mental health uses. Dosing, infusion duration, monitoring, and integration vary by program. IV delivery allows precise titration but requires medical infrastructure.
Intranasal esketamine (Spravato)
Esketamine is FDA-approved for treatment-resistant depression and is administered in certified healthcare settings under a restricted program. Sessions involve a monitored observation period after dosing.
Intramuscular (IM) injection
Some clinics use IM ketamine. Onset and pharmacokinetics differ from IV. As with other routes, screening, monitoring, and integration are central to responsible programs.
Oral and sublingual lozenges
Some programs use prescribed lozenges, often in combination with virtual or in-person psychological support. Bioavailability is lower and more variable than parenteral routes, which has implications for dosing and safety.
The role of psychological support
Many clinicians emphasize integration: structured therapy and reflection around dosing sessions. Evidence on the most effective forms of integration is still developing, but thoughtful clinical support is widely considered important.
Educational use only. The content on this page is provided for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Ketamine and related therapies carry risks and are appropriate only under qualified medical supervision. Always consult a licensed healthcare professional about your individual situation. Information may change as research evolves.