Ambrisentan and Tadalafil interaction

Ambrisentan and Tadalafil: the Ambrisentan prescribing label mentions 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 Ambrisentan (Letairis) label · effective 2026-06-22

Minor

Peripheral edema/fluid retention is more common with Letairis plus tadalafil than with Letairis or tadalafil alone.

Warnings and precautionsnames TadalafilView 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.