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中国临床药理学与治疗学 ›› 2007, Vol. 12 ›› Issue (1): 90-92.

• 定量药理学 • 上一篇    下一篇

左氧氟沙星在大鼠体内的时辰药动学

李晓天1, 王红娟1, 王天奎2, 王素军3   

  1. 1浙郑州大学药学院, 郑州 450000, 河南;
    2河南电力医院, 郑州 450000, 河南;
    3军事医学科学院, 北京 100000
  • 收稿日期:2006-09-13 修回日期:2006-09-13 出版日期:2007-01-26 发布日期:2020-10-26
  • 作者简介:李晓天, 男, 博士, 副教授, 硕士生导师, 主要研究方向:药物动力学。Tel:0371-67781889  E-mail:lixt258@sina.com

Chronopharmacokinetics study of levofloxacin in rats

LI Xiao-tian1, WANG Hong-juan1, WANG Tian-kui2, WANG Su-jun3   

  1. 1Colleage of Pharmacy, Zhengzhou University, Zhengzhou 450000, Henan, China;
    2Henan Electric Power Hospital,Zhengzhou 450000, Henan, China;
    3Academy of Military Medical Sciences, Beijing 10000, China
  • Received:2006-09-13 Revised:2006-09-13 Online:2007-01-26 Published:2020-10-26

摘要: 目的: 研究左氧氟沙星在大鼠体内的时辰药动学。方法: 大鼠不同时间口服给予左氧氟沙星20 mg/kg后, 采用反相高效液相色谱法测定其血浆药物浓度, 并求算其药动学参数。结果: 大鼠分别于8:00 、16:00 及24:00 给药后, 其主要药动学参数:Cmax 分别为2.37 、2.02 和2.85 mg/L;tmax 分别为0.56 、0.50 和0.62 h;AUC0-∞ 分别为11.23 、9.89和11.77 mg·h·L-1;t1/2 分别为4.23 、3.51 和4.46 h;CLs 分别为0.39 、0.57和0.36 L·kg-1·h-1 。其各时间点主要药动学参数无统计学差异。结论: 左氧氟沙星在大鼠体内的药动学没有明显的时间节律性变化。

关键词: 左氧氟沙星, 高效液相色谱法, 药动学, 时间节律

Abstract: AIM: To study the chronopharmacokinetics of levofloxacin in rats. METHODS: After levofloxacin was orally given to rats at different times, the concentrations of levofloxacin in plasma and urine were determined by HPLC and the pharmacokinetics parameters were calculated. RESULTS: The mean pharmacokinetic parameters of levofloxacin at 8:00, 16:00 and 24:00 were Cmax 2.37, 2.02 and 2.85 mg/L;tmax 0.56, 0.50 and 0.62 h;AUC0-∞ 11.23, 9.89 and 11.77 mg·h·L-1;t1/2 4.23, 3.51 and 4.46 h;CLs 0.39, 0.57 and 0.36 L·kg-1·h-1, respectively.The main pharmacokinetic parameters showed no significant difference by oral administration at 8:00, 16:00 and 24:00. CONCLUSION: There was no obvious change in circadian rhythms of levofloxacin in rats.

Key words: levofloxacin, HPLC, chronopharmacokinetics, circadian rhythms

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