硝苯吡啶为钙通道阻滞剂,临床上广泛用于冠心病、心绞痛、高血压、心力衰竭、原发性肺动脉高压、支气管哮喘、尿道梗阻等。目前该药有多种不同剂型,且在临床上不断开发其新用途,现介绍如下,供临床参考。片剂:临床常见的多为糖衣片,有口服和舌下含服两种方式。常见剂量一般为10～20mg 每日2～3次。舌下含服较口服作用快,90%以上迅速吸收,用药后15分钟左右出现明显降压作用。而口服后虽同样90%以 Nifedipine calcium channel blockers, clinically widely used in coronary heart disease, angina, hypertension, heart failure, pulmonary hypertension, bronchial asthma, urethral obstruction. At present, the drug has a variety of different dosage forms, and in the clinical development of its new uses, are presented below for clinical reference. Tablets: Common clinical mostly sugar-coated tablets, oral and sublingual two ways. Common dose is generally 10 ~ 20mg 2 or 3 times a day. Sublingual oral faster than oral, 90% of the above rapid absorption, 15 minutes after treatment obvious antihypertensive effect. Although the same after oral administration of 90%