作者采用单盲法对某地慢性阻塞性肺病(COPD)患者给予氨茶碱(6～8毫克/公斤/天)或安慰剂维生素B_1治疗半年,每2个月测定肺功能,并排除因药物反应拒服、患其它病或由于呼吸道感染加剧1周内未见好转、外迁等患者。治疗组共160例,对照组 The authors used a single blinded trial of aminophylline (6-8 mg / kg / day) or placebo for a six-month period in patients with chronic obstructive pulmonary disease (COPD) in a placebo for six months and lung function every two months, Refused to respond, suffering from other diseases or due to respiratory infection intensified within 1 week did not improve, relocation and other patients. A total of 160 cases of treatment group, control group