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    GlossaryAngiotensin II Receptor Blockers

    block hormone action to relax blood vessels

    Angiotensin II Receptor Blockers (ARBs) are medications that help relax blood vessels by blocking the action of a hormone called angiotensin II, which normally causes blood vessels to constrict. By preventing this constriction, ARBs lower blood pressure and make it easier for the heart to pump blood, which is particularly useful in treating conditions like hypertension and heart failure.

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