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作者经随机双盲对照试验表明,钙通道阻滞剂硝苯啶有扩张支气管和改善肺功能的作用。10例哮喘病史患者,每隔3天口服硝苯啶20mg、沙丁胺醇4mg或安慰剂。用药前及后的2小时内,每20分钟测定一分钟全力呼气量(FEV_1)。结果给予安慰剂后FEV_1无明
The authors of a randomized double-blind controlled trial showed that calcium channel blocker nifedipine bronchial expansion and improve pulmonary function. 10 patients with a history of asthma, oral nifedipine 20mg, salbutamol 4mg or placebo every 3 days. One minute of full expiratory volume (FEV_1) was measured every 20 minutes within 2 hours before and after treatment. Results FEV 1 was not seen after placebo