硝苯啶又称心痛定,心利平,是二氢吡啶的衍生物,为新型的钙拮抗剂,特点是作用快而强,疗效好,不良反应小,硝苯啶是一种强的血管扩张药,对冠状动脉扩张明显,对外周阴力血管特别的皮肤和骨骼肌的小动脉也有较强的扩张作用,但不扩张容量血管,因硝苯啶能选择性地阻滞细胞膜的慢通道,抑制C_a~(2+)内流,而广泛应用于治疗冠心病、心绞痛、高血压、心律失常 Nifedipine, also known as nifedipine, nifedipine, is a derivative of dihydropyridine, a new type of calcium antagonist, is characterized by fast and strong effect, good efficacy, adverse reactions, nifedipine is a strong vasodilation Drugs, the expansion of the coronary artery obvious, especially on the peripheral blood vessels and skeletal muscle of the small arteries also have a strong expansion, but does not expand the capacity of blood vessels, because nifedipine can selectively block the slow pathway of cell membranes, inhibition of C_a ~ (2+) influx, which is widely used in the treatment of coronary heart disease, angina, hypertension, arrhythmia