Azithromycin and Fidaxomicin interaction
Azithromycin and Fidaxomicin: both prescribing labels mention this combination without an instruction to avoid it or change the dose.
Mentioned, no instruction to avoid. Worth knowing; rarely a reason to change anything on its own.
What the FDA labels say
From the Azithromycin (Zithromax) label · effective 2026-07-24
However, drug interactions have been observed with other macrolide products.
From the Fidaxomicin (Dificid) label · effective 2024-10-16
Some patients with hypersensitivity reactions to DIFICID also reported a history of allergy to other macrolides.
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.