β-受体阻断药(β-肾上腺素能受体阻断药)在治疗高血压病中的应用日益广泛,不仅疗效肯定和副作用较少,而且尚有其他重要用途。在抗高血压药物中,迄今常用的肾上腺素能神经元阻断药如利血平、胍乙啶等,由于阻断神经递质(去甲肾上腺素)的合成、貯存或释放等过程而产生降压作用,相当于化学性交感神经切除术,选择性较低,故副作用较多。β-受体阻断药作用β-受体,选择性较高,故副作用较少,且无直立 β-adrenergic blockers (β-adrenergic receptor blockers) are increasingly used in the treatment of hypertension, not only for efficacy and fewer side effects, but also for other important uses. Among the antihypertensives, adrenergic neuron blockers such as reserpine and guanethidine, which have hitherto been used, have been produced by blocking the synthesis, storage or release of neurotransmitters (norepinephrine) Antihypertensive effect, equivalent to chemical sympathectomy, less selective, so more side effects. β-receptor blocker β-receptor, high selectivity, so fewer side effects, and no erection