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1.青霉素和氯霉素同时使用,能使青霉素疗效降低,如一定要使用两药时,可先注射青霉素,2～3天后再用氯霉素。 2.氨苄青霉素与维生素C混合,由于pH降低而使氨苄青霉素失活,因此不能将二者混合使用,如需补充维生素C时,可在用氨苄青霉素后,以维生素C加入50％葡萄糖注射液40ml静注。 3.卡那霉素使用其硫酸盐,水溶后呈酸性,磺胺嘧啶钠水溶液呈碱性,两者混合将出现浑浊,产生沉淀,降低药效。故两种药物不能同时应用。
1. Penicillin and chloramphenicol at the same time, can reduce the efficacy of penicillin, such as must use two drugs, the first injection of penicillin, chloramphenicol 2 to 3 days later. 2. Ampicillin and vitamin C mixture, due to lower pH and ampicillin inactivation, it can not be a mixture of both, such as the need for vitamin C, can be used with ampicillin, vitamin C by adding 50% glucose injection 40ml intravenous injection. 3. Kanamycin sulfate, water-soluble, acidic, sulfadiazine sodium aqueous solution was alkaline, the two will appear mixed turbidity, precipitation, reduce efficacy. Therefore, the two drugs can not be applied at the same time.