Thiothixene (Navane) and Ketamine Therapy | Tovani Health
Navane (Thiothixene) — Typical (first-generation) antipsychotic
Verdict at Tovani Health
Compatible; older D2 antagonist with sedation and EPS considerations.
Thiothixene and ketamine are compatible. As a first-generation antipsychotic, thiothixene has stronger D2 antagonism than atypicals, which means somewhat more pronounced antidepressant-attenuation theoretical concern, more sedation, and more EPS (extrapyramidal symptoms). Less commonly prescribed today, but still seen for chronic stable patients.
If you take Navane 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 Navane interacts with ketamine
Thiothixene is a thioxanthene typical antipsychotic with potent D2 antagonism. Sedation, EPS, and anticholinergic effects are dose-dependent. No meaningful CYP interaction with ketamine.
What we do at intake
Disclose dose, indication, and any history of EPS or tardive dyskinesia. Continue as prescribed.
Bottom line
Thiothixene and ketamine are compatible. As a first-generation antipsychotic, thiothixene has stronger D2 antagonism than atypicals, which means somewhat more pronounced antidepressant-attenuation theoretical concern, more sedation, and more EPS (extrapyramidal symptoms). Less commonly prescribed today, but still seen for chronic stable patients.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Navane (Thiothixene) 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.