心律平是目前常用的抗心律失常药物,属于Vaughan-Williams分类第1组,即其对细胞膜具有直接作用,表现为收缩期除极减收并引起传导延缓。其常见副作用是口干,舌头和口唇麻木感,恶心,呕吐等胃肠道障碍,于心功能不良患者可能出现血压下降,房室传导阻滞等。我院收治1例心功能正常,室性心律失常患者,口服心律平后,出现血压明显下降,为引起同道注意现报导如下: Cardiac arrhythmias are commonly used antiarrhythmic drugs and belong to the first group of Vaughan-Williams classification, that is, they have a direct effect on the cell membrane, showing systolic phase depolarization and conduction delay. Its common side effects are dry mouth, numbness of the tongue and lips, nausea, vomiting and other gastrointestinal disorders, heart failure may occur in patients with decreased blood pressure, atrioventricular block and so on. In our hospital, 1 patient with normal cardiac function and ventricular arrhythmia was treated. After oral oral administration of heart rate, there was a significant drop in blood pressure, which is reported as following: