Iloperidone (Fanapt) and Ketamine Therapy | Tovani Health
Fanapt (Iloperidone) — Atypical antipsychotic (D2 / 5-HT2A / alpha-1)
Verdict at Tovani Health
Compatible; orthostatic hypotension is the practical thing to plan around.
Iloperidone and ketamine are compatible. Iloperidone has more pronounced alpha-1 blockade than most atypicals, which causes meaningful orthostatic hypotension — usually requiring a slow titration when starting. The post-session recovery period (when patients stand up) is the highest-risk window. Standard D2-attenuation considerations also apply.
If you take Fanapt regularly and are considering at-home ketamine therapy, the combination is safe with monitoring or dose adjustment. This page covers the brief pharmacologic context and what we do at intake.
How Fanapt interacts with ketamine
Iloperidone antagonizes D2, 5-HT2A, and alpha-1 receptors. Alpha-1 blockade is the dominant tolerability issue. Metabolized by CYP3A4 and CYP2D6.
What we do at intake
Disclose dose and how long you have been on it. Stand up slowly after sessions, especially in the first few weeks of therapy.
Bottom line
Iloperidone and ketamine are compatible. Iloperidone has more pronounced alpha-1 blockade than most atypicals, which causes meaningful orthostatic hypotension — usually requiring a slow titration when starting. The post-session recovery period (when patients stand up) is the highest-risk window. Standard D2-attenuation considerations also apply.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Fanapt (Iloperidone) at intake. The eligibility check takes 5 minutes and gives you an honest answer about whether at-home ketamine fits your specific situation.
FL and NJ residents only. Benjamin Soffer, DO — Tovani Health.
Sources
The verdict and clinical guidance on this page are based on the following peer-reviewed literature and FDA prescribing information.
- Pharmacodynamic Interactions Between Ketamine and Psychiatric Medications Used in the Treatment of Depression. Veraart JKE, Smith-Apeldoorn SY, et al.. International Journal of Neuropsychopharmacology. 2021. PMID: 34170315
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 19, 2026. Dr. Soffer is a board-certified physician (American Board of Internal Medicine) licensed in Florida and New Jersey, prescribing at-home ketamine therapy through Tovani Health.
This page is general information about how this medication interacts with at-home ketamine therapy at Tovani Health. It is not a substitute for medical advice from your prescribing physician about your specific situation. Always discuss medication changes with the doctor who prescribed them.