β受体阻滞剂广泛用于高血压、冠状动脉性心脏病(冠心病)、心肌病、心律失常、心力衰竭等心血管疾病的治疗。根据对不同β受体的作用,β受体阻滞剂可分为三类:1非选择性的β受体阻滞剂,同时阻断β1和β2受体,如普萘洛尔,目前使用非常少,主要应用于甲状腺功能亢进症患者的治疗;2选择性的β受体阻滞剂,对β2受体影响小或几乎无影响,如比索洛尔、阿替洛尔、美托洛尔等;3阻断α1和β受体,能够扩张血 Beta blockers are widely used in the treatment of cardiovascular diseases such as hypertension, coronary heart disease (coronary heart disease), cardiomyopathy, arrhythmia and heart failure. Depending on their effect on different beta receptors, beta blockers fall into three categories: 1 Non-selective beta-blockers that block both beta 1 and beta 2 receptors, such as propranolol, currently used Very few, mainly for the treatment of patients with hyperthyroidism; 2 selective β-blockers have little or no effect on the β2 receptor, such as bisoprolol, atenolol, metoprolol Etc .; 3 block α1 and β receptors, can dilate the blood