硝苯啶是一种钙通过细胞膜慢通道内流的拮抗剂,它对稳定型、变异型及不稳定型心绞痛、轻至重度高血压以及雷诺氏现象均有效,并具良好的耐受性。本品对冠状与外周动脉具强大的扩张性质,同时促进供氧量与需氧量的比值,减少全身血管阻力。药物动力学口服一次硝苯啶后约 Nifedipine is an antagonist of calcium influx through the slow pathway of cell membranes and is effective and stable against stable, variant and unstable angina, mild to severe hypertension, and Raynaud’s phenomenon. This product of coronary and peripheral artery with a strong expansion of nature, while promoting the ratio of oxygen supply and oxygen demand, reduce systemic vascular resistance. Pharmacokinetics Orally administered once after nifedipine