据最近外电报道美国波士顿消息:据此地医生称,一种新批准使用的药物可单独用来治疗危险的不稳定型心绞痛,这种药物叫做硝苯吡啶(Nifedipine),是钙阻滞剂中的一种。这类药物通过解除冠状动脉痉挛,增加对心脏的血液供应。今年年初美国食品和药物管理局已批准使用与硝苯吡啶相似的药物异搏定。不稳定型心绞痛并非是在病人用力时发作的;远期预后很差。研究表明,30％的不稳定型 According to a recent foreign news report, Boston, USA: According to a doctor there, a newly approved drug can be used alone to treat dangerous unstable angina, a drug called Nifedipine, A. These drugs increase the blood supply to the heart by relieving coronary artery spasms. Earlier this year, the U.S. Food and Drug Administration has approved the use of verapamil, a drug similar to nifedipine. Unstable angina does not attack when the patient exerts force; long-term prognosis is poor. Research shows that 30% of the unstable type