alpha blocker, alpha-adrenergic blocker, alpha-adrenergic blocking agent, alpha-blocker - any of various drugs that block alpha-adrenergic receptors; used in treating benign prostatic hyperplasia; relaxes the muscles of the prostate and bladder

antihypertensive, antihypertensive drug - a drug that reduces high blood pressure

brand, brand name, marque, trade name - a name given to a product or service