青霉素Ｇ是临床上常用的抗生素 ,因其杀菌活性强 ,全身分布好 ,毒性低 ,对敏感细菌感染的疗效满意等特点 ,受到临床上的青睐。其主要副作用为过敏反应 ,其发生率为 1%～ 10 % ,过敏性休克发生率0 0 0 4 %～ 0 4 % ,尽管青霉素皮试阴性 ,仍然会有少数病人发生迟缓性过敏反应甚 Penicillin G is clinically used antibiotics, because of its strong bactericidal activity, good body distribution, low toxicity, the efficacy of sensitive bacterial infections and other characteristics of the clinically favored. The main side effects of allergic reactions, the incidence of 1% to 10%, the incidence of anaphylactic shock 0 0 0 4% ~ 0 4%, although the penicillin skin test negative, there will still be a small number of patients with delayed allergic reactions