胺碘酮（amiodarone）系苯呋酮的衍生物，是一种广谱抗心律失常药，近年来，随着其应用的增多，不良反应的报道也逐渐增加，某些不良反应甚至可导致不良后果。1心血管系统胺碘酮的主要药理作用为延长心房、心室动作电位的时限与不应期，延长心肌复极，同时对窦房结、房室结及束 Amiodarone, a derivative of benzofuranone, is a broad-spectrum anti-arrhythmic drug. As its use has increased in recent years, reports of adverse effects have also been gradually increasing. Some adverse reactions can even cause adverse effects as a result of. Cardiovascular system The main pharmacological effects of amiodarone to extend the atrial and ventricular action potential of the time and refractory period, prolong myocardial repolarization, at the same time on the sinus node, atrioventricular node and bundle