http://jcps.bjmu.edu.cn

• 研究论文 • 上一篇    下一篇

硫酸沙丁胺醇缓释胶囊药代动力学和生物利用度研究

王建新, 陈得光, 蔡传真, 李铜铃, 秦永平, 李芚   

  1. 1. 上海市中药研究所, 上海 200127;
    2. 华西医科大学药学院, 成都 610041;
    3. 北京制药二厂, 北京 100002;
    4. 华西医科大学附一院临床药理研究所, 成都 610041
  • 收稿日期:1998-10-05 修回日期:1999-06-02 出版日期:2000-03-15 发布日期:2000-03-15

Study on Pharmacokinetics and Relative Bioavailability of A Sustained-release Preparation of Albuterol

Wang Jianxin, Chen Deguang, Cai Chuanzhen, Li Tongling, Qin Yongping, Li Tun   

  1. 1. Shanghai Institute of Chinese Materia Midica, Shanghai 200127;
    2. School of Pharmacy, West China University of Medical Sciences, Chengdu 610041;
    3. Beijing 2nd Pharmaceutical Factory, Beijing 100002;
    4. The First Hospital of West China University of Medical Sciences,Chengdu 610041
  • Received:1998-10-05 Revised:1999-06-02 Online:2000-03-15 Published:2000-03-15

摘要: 以英国Glaxo Pharmaceuticals生产的沙丁胺醇控释片(Volmax, 8 mg)为参比制剂, 采用随机分组交叉试验设计方法, 考察20名健康男性志愿受试者单剂量和多剂量口服成都地奥公司生产的硫酸沙丁胺醇缓释胶囊(Salbuta, 8 mg)后的药代动力学和相对生物利用度, HPLC-紫外检测器测定血浆中沙丁胺醇的浓度。用3P87药动学程序对结果进行处理。单剂量给药时, SalbutaVolmax分别在550±0.85 h5.30±0.95 h达到峰浓度10.61±3.94 ng·mL-110.52±2.59 ng·mL-1, 血药浓度曲线下面积分别为124.74±33.86 h·ng.mL-1126.02±38.17 h·ng·mL-1, Salbuta的相对生物利用度为98.98±12.04%。多剂量给药达稳态时, Cssmax分别为12.94±3.35 ng·mL-112.6±3.36 ng·mL-1. Cssmin分别为5.84±1.34 ng·mL-16.16±1.33 ng·mL-1, 平均稳态血药浓度Cav分别为8.72±2.17 ng·mL-18.67±2.16 ng·mL-1, 波动度DF分别为81.82±17.74%76.03±20.48%。经F检验和双单侧t检验, 两种制剂具有生物等效性。

关键词: 沙丁胺醇, 药代动力学, 生物利用度, 高效液相色谱法

Abstract:

The pharmacokinetics and relative bioavailability of a sustained-release capsule of albuterol (Salbuta) made by CDDA (China) were investigated following a single and multiple oral dose given to 20 healthy male volunteers in a randomized 2-way cross-over study. The controlled-release tablet of albuterol (Volmax) made by Glaxo (U.K.) was used as reference preparation. Plasma concentration of albuterol was determined by a newly developed HPLC method with UV detection. After a single oral dose the peak concentrations Cmax were 10.6±3.94 ng·mL-1 and 10.52±2.59 ng·mL-1 at 5.50±0.85 h and 5.30±0.95 h and the AUC0- were 124.74±33.86 h·ng·mL-1 and 126.02±38. 17 h.ng·mL-1 for Salbuta and Volmax respectively. The relative bioavailability of Salbuta was 98.98±12.04%. Following multiple dosing, mean steady state Cssmax values were 12.94±3.35 ng·mL-1 and 12.60±3.36 ng.mL-1, mean Cssmin values were 5.84±1.34 ng.mL-1 and 6.16±1.33 ng·mL-1, the degree of fluctuation (DF) was 81.82±17.74% and 76.03±20.48% for the two formulations respectively. The results of statistical comparison showed that the two preparations were bioequivalent.

Key words: Albuterol, Albuterol, Pharmacokinetics, Pharmacokinetics, Bioavailability, Bioavailability, HPLC, HPLC

Supporting: