Nicorandil as a line of mitochondrial ATP-sensitive potassium channel opener,has a significant effect on improving micro-circulation,anti-myocardial ischemia and myocardial protection.It is also widely applied in the treatment of acute coronary syndrome,espe-cially for injection of nicorandil.In this article,the progress of injection nicorandil in acute coronary syndrome was reviewed.%尼可地尔作为钾离子通道开放剂，具有改善微循环、抗心肌缺血、保护心肌等作用，在急性冠状动脉综合征的治疗上得到越来越广泛的应用，尤其是注射用尼可地尔，在临床应用中得到青睐，现就注射用尼可地尔在急性冠状动脉综合征中的应用进展进行综述。
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