临床医护人员发现，在给患者静脉滴注磷霉素钠（5·28y500ml5％G·S）毕，接着续瓶甲磷酸培氟沙星输液（0·4g／250ml5％G．S）时，输液导管内出现白色絮状沉淀，只好更换输液导管。经查阅文献（1993～1997年《中国药学文摘》）未见关于二者配伍变化的报道。为探讨其原因，我们 Clinicians found that infusion of fosfomycin sodium (5.28y500ml5% G · S) into the patient, followed by infusion of pefloxacin phosphate methyl ester (0.4g / 250ml 5% G.S) Catheter appeared white flocculent precipitate, had to replace the infusion catheter. After the literature (1993-1997 “Chinese Pharmaceutical Digest”) did not report on the changes in the compatibility of the two. To explore the reason, we