用国产阿齐霉素治疗呼吸系统感染疾病３０例与进口罗红霉素治疗呼吸系统感染疾病２０例相比较，采用随机非盲法，按随机数字表编治疗组和对照组。两组病人的年龄、性别、病种和病情程度均有可比较性。治疗组痊愈２１例，痊愈率７０％，显效７例，显效率２３．３３％，其有效率为９３．３３％。对照组痊愈１３例，痊愈率６５％，显效６例，显效率３０％，有效率为９５％。治疗组与对照组均无明显不良反应，对肝、肾功能无损害。 30 cases of domestic azithromycin treatment of respiratory infections and imported roxithromycin treatment of respiratory infections in 20 cases compared with randomized non-blind method, according to random number table compiled treatment group and control group. Two groups of patients age, gender, disease and illness are comparable. The treatment group cured 21 cases, the cure rate was 70%, markedly effective in 7 cases, markedly effective rate of 23.33%, the effective rate was 93.33%. The control group recovered in 13 cases, the cure rate was 65%, markedly effective in 6 cases, markedly effective rate of 30%, the effective rate was 95%. The treatment group and the control group were no adverse reactions, no damage to the liver and kidney function.