Itraconazole (Sporanox) and Ketamine Therapy | Tovani Health
Sporanox (Itraconazole) (also: Tolsura) — Triazole antifungal (strong CYP3A4 inhibitor)
Verdict at Tovani Health
Strong CYP3A4 inhibition meaningfully raises ketamine levels; we plan around the course.
Itraconazole alongside ketamine requires individual evaluation. Itraconazole is a strong CYP3A4 inhibitor — much more potent than fluconazole — and can substantially raise ketamine plasma levels and prolong the half-life. Courses are typically weeks to months for systemic fungal infections (histoplasmosis, blastomycosis, onychomycosis). We do not run sessions during the course, and require a washout period after completing therapy before starting or resuming KAP.
If you take Sporanox regularly and are considering at-home ketamine therapy, the combination is depends on your specific situation. This page covers the brief pharmacologic context and what we do at intake.
How Sporanox interacts with ketamine
Itraconazole strongly inhibits CYP3A4 by binding to the heme iron in the enzyme. Ketamine clearance via CYP3A4 slows substantially; a standard ketamine dose can produce levels equivalent to a much higher dose. Effect persists for 1-2 weeks after the last itraconazole dose.
What we do at intake
Disclose any current or recent itraconazole therapy. We typically wait until at least 2 weeks after the course finishes before running sessions.
Bottom line
Itraconazole alongside ketamine requires individual evaluation. Itraconazole is a strong CYP3A4 inhibitor — much more potent than fluconazole — and can substantially raise ketamine plasma levels and prolong the half-life. Courses are typically weeks to months for systemic fungal infections (histoplasmosis, blastomycosis, onychomycosis). We do not run sessions during the course, and require a washout period after completing therapy before starting or resuming KAP.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Sporanox (Itraconazole) 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 Anesthetic and Pain Therapy. Peltoniemi MA, Hagelberg NM, Olkkola KT, Saari TI. Clinical Pharmacokinetics. 2016. PMID: 27028535
Reviews CYP3A4 inhibitors affecting ketamine clearance; strong inhibitors like itraconazole substantially raise exposure.
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.