奥美拉唑肠溶胶囊健康人体药动学及生物等效性

目的:研究2个不同厂家生产的奥美拉唑肠溶胶囊在健康人体的生物等效性。方法:20名健康志愿者采用双周期交叉试验,分别单剂量空腹口服奥美拉唑肠溶胶囊60mg,高效液相色谱法测定其血清中奥美拉唑浓度,血药浓度-时间数据经DAS 2.0统计软件处理,计算主要药代动力学参数,并进行两种制剂的生物等效性评价。结果:受试制剂及参比制剂的主要药代动力学参数t_1/2、C_max、T_max和AUC_0-12h分别为(1.789±0.862)h和(1.499±0.503)h、(0.506±0.25)μg/ml和(0.493±0.195)μg/ml、(2.050±0.642)h和(2.038±0.630)h、(1.640±1.408)μg·h-1·ml-1和1.570±0.997)μg·h-1·ml-1。受试制剂的相对生物利用度为(101.48±33.82)%。结论:两种奥美拉唑肠溶胶囊具有生物等效性。

Pharmacokinetics and bioequivalence of omeprazole enteric-coated capsules in healthy volunteers

Objective:To investigate the bioequivalence of omeprazole enteric-coated capsules of two manufactories in Chinese healthy volunteers.Methods:Twenty volunteers were randomly divided into two groups(test and reference),with double cross-over design.The concentration of omeprazole in serum was determined by high performance liquid chromatography(HPLC)and pharmacokinetic parameters were calculated with DAS2.0 practical pharmacokinetics program.Results:The pharmacokinetic parameters of the test and reference pre...