摘要
目的:比较进口和国产盐酸特拉唑嗪片剂药动学及人体生物等效性。方法:24名健康男性受试者随机交叉口服盐酸特拉唑嗪受试制剂和参比制剂2 mg,血浆样品经直接沉淀后,采用液相色谱-串联质谱(LC-MS/MS)法测定特拉唑嗪浓度,计算药动学参数。对主要药动学参数进行统计学分析,评价两制剂的生物等效性。结果:盐酸特拉唑嗪受试制剂和参比制剂主要药动学参数分别为:t1/2(9.55±1.19)和(9.95±1.45)h,tmax为(1.20±0.88)和(1.28±1.28)h,cmax为(57.59±16.61)和(57.12±17.83)ng/mL,AUC0~48为(621.96±152.54)和(607.52±126.03)ng.h.mL^-1,AUC0~∞为(640.81±156.06)和(628.52±127.69)ng.h.mL-1。受试制剂的相对生物利用度为(102.10±9.91)%。结论:盐酸特拉唑嗪受试制剂和参比制剂具有生物等效性。
Objective:To evaluate the pharmacokinetics and bioequivalence of imported and domestic terazosin hydrochloride tablets.Methods: Twenty-four healthy male volunteers were randomly administered a single crossover dose of 2 mg test and reference tablets.The concentrations of terazosin in plasma were determined by liquid chromatography-tandem mass spectrometry(LC-MS/MS) method after protein precipitation.The pharmacokinetic parameters of terazosin hydrochloride test and reference tablets were statistically calculated and the bioequivalence was evaluated. Results: The main pharmacokinetic paramcters of test and reference tablets were as follows: t1-2 (9.55±1.19) and (9.95±1.45) h,tmax (1.20±0.88) and (1.28± 1.28) h, cmax(57. 59 ±16.61) and (57.12±17.83) ng/mL, AUC0.48(621.96±152.54) and (607.52±126.03) ng.h.mL^-1. AUC0-∞, (640.81 ±156.06) and (628.52±127.69) ng.h.mL^-1,respectively. The relative bioavailability of test formulation was (102. 10±9.91 )Conclusion: The test tablets are bioequivalent to the reference tablets.
出处
《药学服务与研究》
CAS
CSCD
2009年第5期370-373,共4页
Pharmaceutical Care and Research
基金
上海市科委科研计划项目(No.08411966700)
关键词
特拉唑嗪
生物等效性
色谱法
高压液相
质谱法
terazosin
bioequivalence
chromatography
high pressure liquid
mass spectrometry