单词 | beta-blocker |
释义 | be·ta-block·er ![]() n. A drug that blocks beta-receptors, thus counteracting the excitatory effects of norepinephrine and other beta-agonists released from sympathetic nerve endings. Beta-blockers are used primarily to treat angina, hypertension, arrhythmia, and migraine. Also called beta-adrenergic antagonist, beta-adrenergic blocker. |
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