Itraconazole and Triamterene interaction

Itraconazole and Triamterene: the Itraconazole prescribing label flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Itraconazole (Tolsura) label · effective 2025-04-23

Major

Diuretics Eplerenone Contraindicated during and 2 weeks after TOLSURA treatment.

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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.