Bendamustine and Ritonavir interaction
Bendamustine and Ritonavir: the Bendamustine prescribing label describes 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 Bendamustine (BENDAMUSTINE HYDROCHLORIDE) label · effective 2026-05-14
Consider alternative therapies that are not CYP1A2 inducers or inhibitors during treatment with Bendamustine Hydrochloride Injection.
CYP1A2 Inducers The coadministration of Bendamustine Hydrochloride Injection with CYP1A2 inducers may decrease bendamustine plasma concentrations and may result in decreased efficacy of Bendamustine Hydrochloride Injection [see Clinical Pharmacology (12.3) ] .
Consider alternative therapies that are not CYP1A2 inducers during treatment with Bendamustine Hydrochloride Injection.
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.