尼卡地平是一种新的钙离子拮抗剂,其结构类似于硝苯啶。它能直接作用于血管平滑肌,对治疗高血压有效。本文就尼卡地平和心得安的安全性和疗效,进行了双盲随机交叉临床试验。方法:研究对象为25名45～73岁的慢性稳定型心绞痛患者,心绞痛时间为5～240月(平均56月)。试验期间,除舌下食服硝酸甘油外,其他影响心血管功能的药物一律停用。先单盲给予安慰剂治疗2围,以后随机 Nicardipine is a new calcium antagonist with a structure similar to nifedipine. It can act directly on vascular smooth muscle, effective for the treatment of hypertension. In this paper, nicardipine and propranolol safety and efficacy, a double-blind randomized clinical trials cross. Methods: Twenty-five patients with chronic stable angina who were 45-73 years old and whose angina pectoris time was from 5 to 240 months (mean 56 months) were included. During the test, except for the sublingual nitroglycerin, other drugs that affect cardiovascular function should be discontinued. The first blind to give placebo treatment 2 Wai, after random