Triamcinolone and Verapamil interaction
Triamcinolone and Verapamil: the Triamcinolone prescribing label describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Triamcinolone (KENALOG-40) label · effective 2026-01-05
Co-administration of other strong CYP3A4 inhibitors (e.g., ritonavir, atazanavir, clarithromycin, indinavir, itraconazole, nefazodone, nelfinavir, saquinavir, telithromycin, cobicistat-containing products) with KENALOG-40 Injection may cause increased plasma concentration of triamcinolone leading to adverse reactions.
CYP3A4 inhibitors: Triamcinolone acetonide is a substrate of CYP3A4.
(See ADVERSE REACTIONS . ) During postmarketing use, there have been reports of clinically significant drug interactions in patients receiving triamcinolone acetonide and strong CYP3A4 inhibitors (e.g., ritonavir).
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.