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机构地区:[1]广西南宁市第七人民医院,南宁市530012 [2]广西医科大学第一附属医院国家药品临床研究基地,南宁市530021
出 处:《中国药房》2008年第26期2033-2035,共3页China Pharmacy
摘 要:目的:研究2种盐酸左氧氟沙星片在人体内的药动学及生物等效性。方法:采用随机自身交叉对照试验设计,20名健康男性志愿者分别单剂量口服受试制剂与参比制剂后.采用高效液相色谱法测定血浆左氧氟沙星的浓度,并计算二者药动学参数及生物利用度。结果:受试制剂与参比制剂Cmax分别为(6.54±1.39)、(6.31±1.21)mg·L^-1,tmax,分别为(1.04±0.39)、(1.04±0.40)h,t1/2分别为(7.77±0.84)、(7.98±1、30)h,AUC0-24分别为(50.66±5.84)、(50.94±4.82)mg·h·L^-1,AUC0-∞分别为(57.55±6、75)、(58.42±6.40)mg·h·L^-1。以AUC0-24估算,受试制剂的相对生物利用度为(100.20±14.23)%。结论:二者生物等效。OBJECTIVE: To study the pharmacokinetics and bioequiavailability of 2 kinds of levofloxacin tablets in healthy volunteers. METHODS: A single dose of test and reference tablets of levofloxacin were given to 20 healthy male volunteers in a randomized crossover study. Plasma level of levofloxacin were detected by HPLC and the pharmacokinetic parameters and bioequiavailability of 2 kinds of levofloxacin tablets were computed. RESULTS: The main pharmacokinetic parameters of the test and the reference preparations were as follows: Cmax were (6.54± 1.39) mg ·L^-1 and (6.31± 1.21) mg ·L^-1 t were (1.04±0.39)h and (1.04±0.40)h; t1/2 were (7.77±0.84)h and (7.98± 1.30)h; AUC0-24 were (50.66±5.84) mg · h·L^-1 and (50.94±4.82) mg· h·L^-1 AUC0-∞were (57.55±6.75) mg· h·L^-1and (58.42±6.40) mg· h·L^-1, respectively. Estimated by AUC0-24, the relative bioavailability of the test preparation was (100.20 ± 14.23)%. CONCLUSION: The result of statistical analysis showed that test and the reference tablets of levofloxacin were bioequivalent.
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