Timolol Eye Drops (Timoptic) and Ketamine Therapy | Tovani Health
Timoptic (Timolol (Ophthalmic)) (also: Combigan, Cosopt, Istalol) — Topical ophthalmic beta-blocker (glaucoma)
Verdict at Tovani Health
Fully compatible; local eye delivery with minimal systemic absorption.
Topical timolol eye drops and ketamine have no clinically significant interaction at standard glaucoma doses. Small amounts of systemic absorption can occur, but at intraocular treatment doses the effect is much smaller than oral beta blockers we already treat as SAFE.
If you take Timoptic 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 Timoptic interacts with ketamine
Timolol non-selectively blocks beta-1 and beta-2 receptors in the eye to reduce aqueous humor production. Systemic absorption through nasolacrimal drainage is small but not zero — patients with severe asthma or bradyarrhythmia should be aware.
What we do at intake
Continue as prescribed. Use of the punctal-occlusion technique (closing the tear duct for a minute after drops) further reduces systemic absorption.
Bottom line
Topical timolol eye drops and ketamine have no clinically significant interaction at standard glaucoma doses. Small amounts of systemic absorption can occur, but at intraocular treatment doses the effect is much smaller than oral beta blockers we already treat as SAFE.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Timoptic (Timolol (Ophthalmic)) 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 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.