硝苯地平(Nifedipine)是一种钙拮抗剂,它对血管和其它平滑肌的钙通道有选择性阻断作用,拮抗钙离子转运到细胞内,而舒张血管,发挥其降低血压,改善心肌供血,减轻心脏前、后负荷等作用,因此被广大临 Nifedipine is a calcium antagonist that selectively blocks calcium channels in blood vessels and other smooth muscles, antagonizes the transport of calcium ions into the cells, and relaxes blood vessels to exert their effects of lowering blood pressure, improving myocardial blood supply, Reduce the heart before and after the load and so on, it is the majority of Pro