摘要
目的:建立测定血浆中苯磺酸左氨氯地平质量浓度的高效液相色谱-串联质谱(HPLC-MS/MS)法,研究苯磺酸左氨氯地平片的相对生物利用度及其生物等效性。方法:按照两制剂、双周期、自身对照、交叉试验设计,20例健康男性志愿者单剂量口服试验试剂或参比试剂,采用LC-MS/MS法测定血浆中苯磺酸左氨氯地平的药物质量浓度,使用WinNonlin 6.1软件的NCA模块计算药动学参数,并评价2种制剂的生物等效性。结果:受试试剂及参比试剂的主要药代动力学参数如下:峰浓度(Cmax)分别为(3.37!0.9)、(3.50!1.39)μg.L-1;峰时间(Tmax)分别为(4.7±2.1)、(5.7±2.8)h;AUClast(AUC0-t)分别为(146.3±53.5)、(144.1±43.3)μg.h-1.L-1;AUCinf(AUC0-∞)分别为(167.9±64.8)、(165.1±52.3)μg.h-1.L-1;AUClast/AUCinf分别为(87.8±6.1)%、(87.8±6.1)%;MRTlast(MRT0-t)分别为(40.4±4.4)、(40.0±3.6)h;MRTinf(MRT0-∞)分别为(57.5±13.6)、(57.1±12.5)h;血浆半衰期(t1/2)分别为(38.6±9.4)、(38.8±9.4)h。受试试剂的相对生物利用度:Flast为(101.3±15.7)%,Finf为(101.2±15.9)%。结论:受试试剂和参比试剂具有生物等效性。
OBJECTIVE :To establish HPLC-MS/MS method for determination of levamlodipine besylate tablets in human plasma and study the relative bioavailability and bioequivalence of levamlodipine besylate tablets. METHODS: By a two-preparation double-cycle own control crossover design, a single dose of test or reference preparation of levamlodipine besylate tablets was given to 20 healthy volunteers respectively. The mass concentration of lcvamlodipine was determined by HPLC-MS/MS. The pharmacokinetic parameters were calculated using NCA module of WinNonlin 6. 1 software. The bioequivalence of the test vs. reference preparation of levamlodipine besylate tablets was evaluated as well. RESULTS:The main pharmacokinetic parameters of test vs. reference levamlodipine besylate tablets were stated as follows: Cmax:( 3.37±_0.9) vs. (3.50±1.39)μg·L^-1·L^-1;Tmax:(4.7±2.1 ) vs. (5.7±2.8) hrs;AUClast, (AUC0-t):(146.3±53.5) vs. (144.1 ±43.3) μg·L^-1·L^-1AUCinf(AUC0-∞):(167.9±64.8) vs. (165.1 ± 52. 3)μg·L^-1·L^-1;AUClast/AUCinf;(87.8% ±6. 1% ) vs. (87. 8% ±6. 1% ) ;MRTlast(MRT0-t) :(40.4±4.4) vs. (40. 0±3.6)hMRTinf(MRT0-∞ ) : (57.5∞13.6) and (57. 1 ± 12. 5) hrS;t1/2 : (38.6 ±9.4) vs. ( 38.8±9.4) hrs. The relative bioavailability of test preparation was as follows: Flast, stood at ( 101.3%± 15. 7% ) and Fins stood at (101.2%± 15.9% ). CONCLUSION :The tested preparation of levamlodipine besylate tablets was bioequivalent to the reference preparation.
出处
《中国医院用药评价与分析》
2013年第3期247-251,共5页
Evaluation and Analysis of Drug-use in Hospitals of China