应用随机对照的方法评价了注射用乳糖酸阿奇霉治疗下呼吸道感染 30例的疗效和安全性。结果表明 ,其有效率为 76.0 % ,痊愈率为 68.0 % ,细菌清除为 93.1% ,细菌的 MIC90 为 0 .5～ 4.0 mg/ L,不良反应发生率为 3.3% ,显著低于对照药红霉素的不良反应发生率 ( 33.3% ) ,P<0 .0 5。 A randomized controlled trial was conducted to evaluate the efficacy and safety of azithromycin lactobionate injection in the treatment of 30 lower respiratory tract infections. The results showed that the effective rate was 76.0%, the cure rate was 68.0%, the bacterial clearance was 93.1%, the MIC90 of bacteria was 0.5-5.0 mg / L, the incidence of adverse reactions was 3.3%, which was significantly lower than that of the control drug erythromycin The incidence of adverse reactions (33.3%), P <0.