目的研究贝敏伪麻胶囊(试验制剂)和贝敏伪麻片(参比制剂)的人体药动学和相对生物利用度。方法20名健康男性受试者随机双交叉试验,分别单剂量口服试验制剂2粒或参比制剂1片。采用HPLC法测定水杨酸的血药浓度,采用LC-MS/MS法测定对乙酰氨基酚、伪麻黄碱和氯苯那敏的血药浓度,用DAS Ver 2.0软件计算药动学参数,并评价其生物利用度。结果试验制剂和参比制剂水杨酸的主要药动学参数Cmax分别为(7.31±5.21)、(7.55±4.11)μg·mL-1,tmax分别为(2.65±0.96)、(2.44±0.80)h,AUC0~36 h分别为(41.58±26.49)、(43.35±26.11)μg·h·mL-1。对乙酰氨基酚的主要药动学参数Cmax分别为(927.60±581.63)、(934.29±547.57)ng·mL-1,tmax分别为(3.2±1.8)、(2.3±0.8)h,AUC0~48 h分别为(6 515.39±2 762.32)、(6 657.62±3133.67)ng·h·mL-1。伪麻黄碱的主要药动学参数Cmax分别为(134.16±45.88)、(140.86±55.92)ng·mL-...
【英文摘要】
Objective To study the pharmacokinetics and bioequivalence of Beiminweima capsules(test preparation) and tablets(reference preparation) in Chinese healthy volunteers. Methods Totally 20 healthy male volunteers enrolled in a randomized 2-way cross-over design. A single oral dose of 2 capsules of test preparation or 1 tablet of reference preparation was given to each volunteer. The concentration of salicylic acid was determined by HPLC. The concentrations of paracetamol, pseudoephedrine and chlorphenamine wer...