孙某，男，20岁，因额部、面部、头部、胸部、双耳及双手背被汽油烧伤1小时，于1986年11月1日入院。入院后第15日上午9时起用5％GS1000ml内加氯霉素1.5g静滴（重庆西南制药三厂出品，批号850813）。静滴半小时后出现心慌、发冷、全身紧缩感、胸闷气急、面色苍白、出冷汗、头晕、 Sunmou, male, 20 years old, was admitted to hospital on November 1, 1986 for 1 hour because of his forehead, face, head, chest, ears and both hands. After admission at 15:00 on the 15th with 5% GS1000ml intravenous injection of chloramphenicol 1.5g (Chongqing Southwest Pharmaceutical Factory III, batch number 850813). After half an hour intravenous dripping palpitation, chills, body tightening, chest tightness, shortness of breath, pale, a cold sweat, dizziness,