Metolazone and Zonisamide interaction

Metolazone and Zonisamide: the Metolazone prescribing label mention this combination without an instruction to avoid it or change the dose.

Minor

Mentioned, no instruction to avoid. Worth knowing; rarely a reason to change anything on its own.

What the FDA labels say

From the Metolazone label · effective 2026-01-15

Minor

Cross-Allergy Cross-allergy may occur when metolazone tablets, USP, are given to patients known to be allergic to sulfonamide-derived drugs, thiazides, or quinethazone.

Warningsby drug classView label on DailyMed

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Not 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.