以往用支气管舒张剂治疗轻到中度气流阻塞病人的长期疗效缺乏对照研究。本研究观察了长期应用支气管舒张剂舒喘灵、异丙阿托品对轻度支气管哮喘和 COPD 患者肺功能、生活质量以及两者相互关系的影响。病人和方法 223例患者中144例完成了全部试验。COPD 和支气管哮喘符合美国胸科协会制订诊断标准。患者被随机分成症状治疗 Long-term efficacy of bronchodilator in the treatment of mild-to-moderate airflow obstruction has not been well controlled in the past. This study looked at the long-term use of bronchodilator Shucu Ling, isopropylazocine on mild bronchial asthma and COPD patients with pulmonary function, quality of life and the relationship between the two. Patients and Methods Totally 144 out of 223 patients completed all the trials. COPD and bronchial asthma meet diagnostic criteria set by the American Thoracic Society. Patients were randomized into symptomatic treatment