Key takeaway
A plain-language look at common side effects, monitoring and who may not be a good candidate.
Common, short-lived effects Across clinical trials, the most common effects during or shortly after a session include: - Feeling detached or "floaty" (dissociation) - Dizziness or nausea - Temporary rise in blood pressure - Drowsiness
These typically fade within an hour or two. This is why clinics monitor patients during and after treatment and require a ride home.
Longer-term questions Medically supervised doses are far lower and less frequent than recreational use. Bladder problems and memory issues have mainly been linked to heavy, frequent misuse. Researchers continue to study long-term safety of repeated treatment.
Who should talk carefully with a provider People with uncontrolled high blood pressure, certain heart conditions, a history of psychosis, active substance use problems, or who are pregnant should discuss risks carefully. A full medical screening happens before treatment.
Sources include Short B, et al. Lancet Psychiatry 2018 systematic review of ketamine side effects. Educational only, not medical advice.
This page is informational and is not medical advice.