左旋咪唑作为免疫刺激剂,用于预防小儿反复呼吸道感染确有疗效。该单位对每10～40天反复呼吸道感染的门诊患儿51例,投给汉江制药厂出产的左旋咪唑,按2.5毫克/公斤/日顿服,每二周连服三日,一般于10月份开始服药3～6个月。投药后1～2月,出现疗效。满意疗效约在2～4月。疗效可 Levamisole as an immunostimulant, for the prevention of recurrent respiratory tract infection in children indeed curative effect. The unit for every 10 to 40 days recurrent respiratory tract infection in children with 51 cases, to Han River Pharmaceutical Factory for the production of levamisole, according to 2.5 mg / kg / day service, every two weeks and even served three days, usually in October Start taking 3 to 6 months. 1 to 2 months after administration, the efficacy appears. Satisfactory efficacy in about 2 ~ April. Efficacy can be