摘要
目的建立格列齐特血药浓度的高效液相色谱测定方法,研究Beagle犬单、多剂量口服格列齐特渗透泵片的药动学。方法用HPLC法测定6只健康Beagle犬单剂量和多剂量口服格列齐特缓释片和渗透泵片的血药浓度,以DAS2.0软件计算药动学参数。结果格列齐特的药-时曲线符合单室模型。单剂量给药后,缓释片和渗透泵片的t1/2分别为(6.0±s1.6)h和(7.4±2.3)h,tmax分别为(8.0±2.5)h和(6.2±2.9)h,ρmax分别为(8.1±3.2)mg·L-1和(6.6±1.6)mg·L-1,AUC0~∞分别为(146±8)mg·h·L-1和(144±17)mg·h·L-1,渗透泵片的相对生物利用度为(99±15)%。多剂量给药后,缓释片和渗透泵片的t1/2分别为(8.0±2.5)h和(9±3)h,tmax分别为(4.2±0.4)h和(5.3±0.5)h,ρmax分别为(14.4±1.8)mg·L-1和(12.5±1.7)mg·L-1,ρmin分别为(4.1±1.5)mg·L-1和(5.8±1.5)mg·L-1,ρav分别为(10.2±1.1)mg·L-1和(11.0±1.2)mg·L-1,AUC0~∞分别为(263±29)mg·h·L-1和(270±31)mg·h·L-1,DF分别为(103±21)%和(61±26)%。渗透泵片的相对生物利用度为(103±9)%。结论本方法准确、灵敏,格列齐特在犬体内的药动学符合单室模型,2种片剂生物等效。
AIM To establish a method of HPLC for studying the pharmacokinetics of gliclazide osmoticpump tablets after a single and multiple oral administrations in Beagle dogs. METHODS To determine the plasma concentrations of sustained-release tablets and osmotic pump tablets after a single and multiple oral administration in Beagle dogs by HPLC. The pharmacokinetic parameters were calculated with DAS 2.0 software.RESULTS The drug concentration-time curves fitted to a one-compartment model. The pharmacokinetic parameters for the single oral administration of the sustained-release tablets and osmotic pump tablets were t1/2 (6.0± s 1.6) h and (7.4 ± 2.3) h, tmax(8.0 ± 2.5) h and (6.2 ± 2.9) h, Pmax(8.1 ± 3.2) mg·L^-1 and (6.6 ± 1.6) mg·L^-1, AUCo-∞ (146± 8) mg·h·L^-1 and (144± 17) mg·h·L^-1, respectively. The relative bioavailability of osmotic pump tablets was (99 ± 15)%. After multiple oral adminstration, the pharmacokinetie parameters of the sustained-release tablets and osmotic pump tablets were t1/2 (8.0 ±2.5) h and (8.6 ± 3.1) h, tmax (4.2± 0.4) h and (5.3 ±0.5) h, pmax(14.4± 1.8) mg·L^-1 and (12.5 ± 1.7) mg·L^-1, pmax(4.1 ± 1.5) mg·L^-1 and (5.8 ± 1.5) mg·L^-1, pav(10.2± 1.1) mg·L^-1 and (11.0± 1.2) mg·L^-1, AUC0-∞(263 ± 29) mg·h·L^-1 and (270 ±31) mg·h·L^-1, DF (103 ± 21)% and (61 ± 26)%, respectively. The relative bioavailability of osmotic pump tablets was (103 ± 9)%. CONCLUSION The method of HPLC is accurate and sensitive, and the pharmacokinetics of gliclazide coincided with a single-compartment model. The two preparations of gliclazide were bioequivalent.
出处
《中国新药与临床杂志》
CAS
CSCD
北大核心
2009年第7期518-522,共5页
Chinese Journal of New Drugs and Clinical Remedies
关键词
格列齐特
色谱法
高压液相
迟效制剂
药动学
生物等效性
gliclazide
chromatography, high pressure liquid
delayed-action preparations
pharmacokinetics
bioequiavailability