A group of drugs that lower blood pressure by blocking the effects of adrenaline or adrenaline-like substances on cells' alpha receptors. Also used to treat some prostate gland problems. Alpha bl [..]

Synonyms: alpha-adrenergic antagonist, alpha-adrenergic blocking agent, alpha-adrenergic blocker Definition: (AL-fah) Any drugs or other substances that block chemical activity (antagonist) at the alp [..]

Drugs that bind to but do not activate alpha-Adrenergic Receptors thereby blocking the actions of endogenous or exogenous Adrenergic Agonists. Adrenergic alpha-antagonists are used in the treatment of [..]