Cyclobenzaprine and Cyclophosphamide interaction
Cyclobenzaprine and Cyclophosphamide: the Cyclophosphamide 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 Cyclophosphamide (Frindovyx) label · effective 2026-08-26
Prolonged apnea may occur with concurrent depolarizing muscle relaxants (e.g., succinylcholine).
Depolarizing Muscle Relaxants If a patient has been treated with cyclophosphamide within 10 days of general anesthesia, alert the anesthesiologist.
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.