Carvedilol and Hydralazine interaction

Carvedilol and Hydralazine: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Carvedilol (Coreg) label · effective 2026-07-31

Moderate

COREG may be used with caution, however, in patients who do not respond to, or cannot tolerate, other antihypertensive agents.

Warnings and precautionsby drug classView label on DailyMed

From the Hydralazine (hydrALAZINE Hydrochloride) label · effective 2026-08-14

Minor

When other potent parenteral antihypertensive drugs, such as diazoxide, are used in combination with hydralazine, patients should be continuously observed for several hours for any excessive fall in blood pressure.

Drug interactionsby 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.