Meclizine (Antivert, Bonine) and Ketamine Therapy | Tovani Health
Antivert (Meclizine) (also: Bonine) — First-generation antihistamine (vertigo/motion sickness)
Verdict at Tovani Health
Compatible; the sedation overlap is the only meaningful consideration.
Meclizine and ketamine are compatible. Meclizine is sedating, so as with other first-generation antihistamines, we plan sessions to avoid the peak sedation window.
If you take Antivert 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 Antivert interacts with ketamine
Meclizine is an H1 antagonist used for motion sickness and vertigo. It has fewer anticholinergic effects than diphenhydramine but enough sedation to matter on session day.
What we do at intake
Tell us the dose and whether it is daily or as-needed for vertigo. We typically ask you to hold a dose the morning of a session if it is taken as-needed.
Bottom line
Meclizine and ketamine are compatible. Meclizine is sedating, so as with other first-generation antihistamines, we plan sessions to avoid the peak sedation window.
Frequently Asked Questions
Can I take Bonine for nausea during my session?
Ondansetron is a cleaner choice. If you specifically tolerate meclizine and not ondansetron, we can plan around it.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Antivert (Meclizine) 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.
- Ketamine: A Review of Clinical Pharmacokinetics and Pharmacodynamics in Anesthesia and Pain Therapy. Peltoniemi MA, Hagelberg NM, Olkkola KT, Saari TI.. Clinical Pharmacokinetics. 2016. PMID: 27028535
Comprehensive clinical pharmacokinetics/pharmacodynamics review of ketamine including CYP-mediated drug interactions (CYP3A4, CYP2B6).
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 16, 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.