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出 处:《实用药物与临床》2009年第3期189-191,共3页Practical Pharmacy and Clinical Remedies
摘 要:目的考察注射用哌拉西林钠舒巴坦钠[8∶1,PPCL-SBT(8∶1)]、注射用哌拉西林钠舒巴坦钠[4∶1,PPCL-SBT(4∶1)]、注射用哌拉西林钠他唑巴坦钠[8∶1,PPCL-TZBT(8∶1)]的体内抗菌试验,比较3种受试物的ED50值。方法分别以金黄色葡萄球菌(S.aureus)、肺炎克雷伯菌(K.pneumoniae)、大肠杆菌(E.coli)作为感染菌对小鼠进行腹腔注射,对已感染的小鼠按不同组别分别静脉注射PPCL-SBT(8∶1)、PPCL-SBT(4∶1)和PPCL-TZBT(8∶1)各剂量,计算半数有效量(ED50)。结果PPCL-SBT(8∶1)、PPCL-SBT(4∶1)和PPCL-TZBT(8∶1)对S.aureus感染小鼠的ED50分别为803.8、947.8和785.7mg/kg,对K.pneumoniae感染小鼠的ED50分别为685.4、670.1和544.5mg/kg,对E.coli感染小鼠的ED50分别为1108.7、1133.9g和1076.4mg/kg。其ED50值经t检验比较,差别均无统计学意义(P>0.05)。结论PPCL-SBT(8∶1)、PPCL-SBT(4∶1)和PPCL-TZBT(8∶1)对S.aureus、K.pneumoniae、E.coli感染的小鼠均有较好的保护作用,且体内的抗菌作用相当。Objective To investigate the antibacterial in vivo test of piperacillin sodium and sulbactam sodium for injection(8:1、4:1 )and piperacillin sodium and tazobactam sodium for injection(8:1), and compared their ED50 separately. Methods PPCL-SBT(8:1) ,PPCL-SBT(4:1) and PPCL-TZBT(8:1) were given intravenously respectively to the mice, which systemically infected by S. aureus, K. pneumoniae and E. coli, then the ED50 were calculated. Results The ED50 of PPCL-SBT (8:1) , PPCL-SBT (4:1) and PPCL-TZBT ( 8: 1 ) against S. aureus were 803. 8,947. 8 and 785.7 mg/kg respectively;the ED50 of them against K. pneumoniae were 685.4,670.1 and 544.5 mg/kg respec- tively ; the EDs0 of PPCL-SBT ( 8: 1 ), PPCL-SBT ( 4: 1 ) and PPCL-TZBT ( 8 : 1 ) against E. coli were 1 108. 7,1 133.9 and 1 076.4 mg/kg respectively. There was no significant difference in their EDs0 ( P 〉 0.05 ). Conclusion PPCL- SBT( 8:1 ) ,PPCL-SBT(4:1 ) and PPCL-TZBT( 8:1 ) have relatively good protection to the mice provoked by S. aureus, K. pneumoniae and E. coli, and the antibacterial activity in vivo of them are the same.
关 键 词:注射用哌拉西林钠舒巴坦钠(8∶1) 体内的抗菌作用 半数有效量
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