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中国临床药理学与治疗学 ›› 2000, Vol. 5 ›› Issue (3): 245-247.

• 论著 • 上一篇    下一篇

国产尼莫地平胶囊和片剂生物等效性评价

张红, 傅军, 戴群, 李艳艳, 熊玉卿   

  1. 江西医学院临床药理研究所,南昌330006
  • 收稿日期:2000-05-04 修回日期:2000-05-26 出版日期:2000-09-26 发布日期:2020-11-25
  • 作者简介:张红,女,25岁,助教,主要从事药物动力学研究。能玉卿,女,43岁,教授,硕士生导师,研究方向药物动力学。

Bioequivalence of domestic nimodipine capsules and toblets

ZHANG Hong, FU Jun, DAI Qun, LI Yan-Yan, XIONG Yu-Qing   

  1. Institute of Clinical Pharmacology,Jiangxi Medical College,Nanchang,330006
  • Received:2000-05-04 Revised:2000-05-26 Online:2000-09-26 Published:2020-11-25

摘要: 目的 评价尼莫地平胶囊和片剂的生物等效性。方法 18 名健康男性志愿者随机交叉口服单剂量100mg 国产尼莫地平胶囊或片剂,2wk 后进行第2次试验,交叉服用同剂量的对照品或供试品,用高效液相色谱法测定血浆药物浓度。结果 血药浓度-时间曲线拟合表明,该药物符合体内一级吸收的一室开放模型。其Cmax为(56.4±16.9)μg·L-1,t1/2ke为(2.08±0.42)h,tpeak为(1.27±0.52)h,AUC0~9为(197.2±46.5)μg·h·L-1,与对照品的主要药代动力学参数比较,经方差分析和双单侧t检验,无显著性差异(P>0.05)。供试品相对于对照品的生物利用度为(99.3±13.1)%。结论 两制剂体内过程相仿,具有生物等效性。

关键词: 尼莫地平, 高效液相色谱, 生物等效性

Abstract: Aim The bioequivalence of domestic nimodipine capsules and tablets in healthy volunteers was compared.Methods A single oral dose of capsule or tablet of 100 mg nimodipine was given to 18 healthy volunteers in a randomized crossover study.Plasma levels of the drue were determined with HPLC method.Results The plasma concentration-time curve fitted to the first order absorption,1-compartment open model.Their main pharmacoknietic parameters were Cmax (56.4±16.9)μg·L-1,t1/2(ke) (2.08±0.42)h,tpeak (1.27±0.52) h ,AUC0~9 (197.2±46.5)μg ·h-1·L-1.These was no statistically significant difference between the two products (P>0.05).The relative bioavailability of tested capsules to reference tablets was (99.3±13.1)%.Conclusion Both formulations are of bioequivalence.

Key words: nimodipine, HPLC, bioequivalence

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