患者男性 ,３７岁 ,患肝硬化并发食道静脉曲胀破裂出血住院治疗。既往无药物过敏史 ,入院后给予输液、止血、护肝等多种药物治疗 ,并用西米替丁针剂０．４克加入１０ %葡萄糖溶液２５０毫升静滴 ,一日两次。第一天先予常规速度静滴西米替丁针 ,十五分钟后患者诉轻度头昏 ,全身 Male, 37 years old, hospitalized with cirrhosis and esophageal variceal bleeding. Previously no history of drug allergies, after admission to give infusion, hemostasis, liver and other drug treatment, and cimetidine injection 0.4 g 10% glucose solution 250 ml intravenously, twice a day. The first day of the routine intravenous infusion of cimetidine Ding Ding, fifteen minutes after the patient complained mild dizziness, the whole body