庆大霉素是目前较为常用的氨基甙类抗生素 ,抗菌谱广泛 ,水溶液性质相对稳定 ,但用药不当也会造成严重后果。1　疾病的合理选择1 1　Ｇ( - )菌引起的严重感染庆大对多数Ｇ( - )菌显示较强的抗菌作用 ,此菌感染时 ,庆大与青霉素合用呈现协同作用 ,而有大肠杆菌引起肠道、胆道感 Gentamicin is currently more commonly used aminoglycoside antibiotics, antibacterial spectrum is broad, the nature of aqueous solution is relatively stable, but improper use of drugs can also have serious consequences. 1 a reasonable choice of disease 1 1 G (-) bacteria caused by serious infections Qing large majority of G (-) bacteria showed strong antibacterial effect, the bacterial infection, the combination of penicillin and Kyrgyzstan showed a synergistic effect, and E. coli Cause intestinal, biliary sensation