上消化道出血为消化科常见急症 ,1996年 6月～ 1998年 12月间共收住上消化道出血患者 43例 ,分别采用信法丁和西咪替丁治疗 ,现将结果对比分析如下 :1　资料与方法1.1　病例选择与分组　全部病例均经胃镜确诊为消化性溃疡及胃、十二指肠糜烂引起出血者 ,随机分为两组 :信法丁组 Upper gastrointestinal bleeding as a common emergency in the Department of Gastroenterology, June 1996 ~ December 1998 a total of 43 cases of upper gastrointestinal bleeding were admitted, respectively, the letter of law Ding and cimetidine treatment, the results are compared as follows: 1 Materials and Methods 1.1 Case Selection and Grouping All cases were diagnosed by gastroscopy as peptic ulcer and stomach, duodenal bleeding caused by bleeding, were randomly divided into two groups: Xin Fa Ding group