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中国临床药理学与治疗学 ›› 2000, Vol. 5 ›› Issue (4): 333-335.

• 论著 • 上一篇    下一篇

盐酸左旋氧氟沙星胶囊人体生物利用度

马越鸣, 曾照宏1, 陈波1, 冒国光1, 钟秋1, 严文魁1, 查晓娟1, 孙瑞元   

  1. 皖南医学院药理学教研室,1弋矶山医院临床医学研究所, 芜湖241001
  • 收稿日期:2000-05-18 修回日期:2000-07-05 出版日期:2000-12-26 发布日期:2020-11-27
  • 作者简介:马越鸣,女,教授,主要研究定量药理学。孙瑞元,男,教授,国家药品审评委员,国家药典委员会委员。

Relative bioavailability of levofloxacin hydrohloride capsule in healthy volunteers

MA Yue-Ming, ZHENG Zao-Ho ng1, CHEN Bo1, MAO Guo-Guang1, ZHONG Qiu1, YAN Wen-Kui1, ZHA Xiao-Juan1, SUN Rui-Yuan   

  1. Department of Pharmacology, Wannan Medical College, Wuhu, 241001;
    1Institute of Clinical Medicine, Yijishan Hospital ,Wannan Medical College, Wuhu 241001
  • Received:2000-05-18 Revised:2000-07-05 Online:2000-12-26 Published:2020-11-27

摘要: 目的 研究左旋氧氟沙星胶囊的人体药代动力学及相对生物利用度。方法 12 名健康志愿者随机交叉口服单剂量200mg盐酸左旋氧氟沙星胶囊和左旋氧氟沙星片剂,采用高效液相色谱法测定左旋氧氟沙星血药浓度,用一级吸收的二室模型拟合血浓-时间数据,用方差分析和双单侧t 检验进行制剂的等效性分析。结果 胶囊的药代动力学参数为Cmax=(3.18±0.57)mg·L-1,tmax=(0.83±0.33)h,AUC0~24=(20.0±2.9)mg·h·L-1,t1/2(β)=(7.8±2.0)h;片剂的药代动力学参数为Cmax=(2.96±0.43)mg·L-1,tmax=(0.96±0.33)h,AUC0~24=(21.5±1.9)mg·h·L-1,t1/2(β)=(6.82±0.84)h,胶囊的相对生物利用度为(93.0±11.8)%。结论 盐酸左旋氧氟沙星胶囊和左旋氧氟沙星片剂具有生物等效性。

关键词: 盐酸左旋氧氟沙星, 药代动力学, 生物利用度, 高效液相色谱法

Abstract: Aim To investigate the pharmacokinetics and relative bioavailability of levofloxacin hydrochloride capsule.Methods A single 200 mg oral dose of either capsule or tablet was given to 12 healthy male volunteers in randomized self-crossover way.Plasma levofloxacin concentration was determined by high performance liquid chromatography.The concentration-time data of levofloxacin was fit ted to two-compartment model with first-order absorption and the bioequivalence of the two formulations were evaluated by the analysis of variance and the two one-sidedt-test.Results The pharmacokinetic parameters were as follows: capsule:Cmax=(3.18±0.57)mg · L-1, tmax=(0.83±0.33)h, AUC0~24=(19.95±2.86)mg·h·L-1, t1/2(β)=(7.75±2.04)h ;tablet:Cmax=(2.96±0.43)mg·L-1, tmax=(0.96±0.33)h, AUC0~24=(21.49±1.88)mg ·h·L-1, t1/2(β)=(6.82±0.84)h.Relative bioavailability of capsule was (93.0±11.8)% compared with tablet.Conclusion The two formulations are of bioequivalence.

Key words: levofloxacin hydrochloride, pharmacokinetics, bio availability, HPLC

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