Ethambutol (Myambutol) and Ketamine Therapy | Tovani Health
Myambutol (Ethambutol) — Antimycobacterial (TB treatment)
Verdict at Tovani Health
Fully compatible; the optic-neuritis monitoring is intrinsic to ethambutol.
Ethambutol and ketamine have no clinically significant interaction. Part of the standard four-drug TB initial-phase regimen (with isoniazid, rifampin, pyrazinamide). The drug-specific monitoring concern is dose-dependent optic neuritis — patients get baseline and periodic visual acuity and color-vision testing — that's intrinsic, not KAP-related. The KAP considerations are with the rifampin and isoniazid co-treatment, not ethambutol itself.
If you take Myambutol regularly and are considering at-home ketamine therapy, the combination is generally safe at therapeutic doses. This page covers the brief pharmacologic context and what we do at intake.
How Myambutol interacts with ketamine
Ethambutol inhibits mycobacterial arabinosyl transferase, disrupting cell wall synthesis. Renally cleared. No CYP interactions with ketamine.
What we do at intake
Continue your TB regimen as prescribed. The KAP planning revolves around your isoniazid and rifampin doses (see those pages).
Bottom line
Ethambutol and ketamine have no clinically significant interaction. Part of the standard four-drug TB initial-phase regimen (with isoniazid, rifampin, pyrazinamide). The drug-specific monitoring concern is dose-dependent optic neuritis — patients get baseline and periodic visual acuity and color-vision testing — that's intrinsic, not KAP-related. The KAP considerations are with the rifampin and isoniazid co-treatment, not ethambutol itself.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Myambutol (Ethambutol) 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.
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 22, 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.