Diclofenac (Voltaren) and Ketamine Therapy | Tovani Health
Voltaren (Diclofenac) (also: Cataflam, Cambia) — NSAID (oral and topical)
Verdict at Tovani Health
Fully compatible with KAP.
Diclofenac and ketamine have no clinically significant interaction. Voltaren gel is OTC for joint pain with essentially zero systemic absorption. Oral diclofenac is a standard NSAID with the usual GI and cardiovascular cautions intrinsic to the class.
If you take Voltaren 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 Voltaren interacts with ketamine
Diclofenac is a non-selective COX inhibitor with slight COX-2 preference. CYP2C9 substrate; minimal effect on ketamine.
What we do at intake
Continue as prescribed.
Bottom line
Diclofenac and ketamine have no clinically significant interaction. Voltaren gel is OTC for joint pain with essentially zero systemic absorption. Oral diclofenac is a standard NSAID with the usual GI and cardiovascular cautions intrinsic to the class.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Voltaren (Diclofenac) 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.