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作 者:孙志宏[1] 阳国平[2] 裴奇[2] 黄志军[2] 刘畅[2] 阳丽[2] 金承怀[2] 谭鸿毅[2]
机构地区:[1]湖南师范大学附属湘东医院神经脑外科,湖南株洲412200 [2]中南大学湘雅三医院临床药理中心,长沙410013
出 处:《中南药学》2009年第6期415-418,共4页Central South Pharmacy
摘 要:目的研究丙戊酸钠片的相对生物利用度。方法采用随机、开放、双周期交叉试验设计。20名健康志愿者分别单剂量口服0.4g丙戊酸钠片(参比制剂)或丙戊酸钠片(受试制剂)。采用HPLC法测定给药后不同时间的丙戊酸血药浓度,采用DAS2.0软件求算药物动力学参数,以双单侧t检验进行生物等效性评价。结果参比制剂与受试制剂的主要药物动力学参数:Cmax分别为(37.52±9.86)、(40.56±9.36)mg·L^-1;tmax分别为(1.52±0.70)、(1.25±0.53)h;t1/2分别为(20.2±6.76)、(20.05±6.65)h;AUC0~t分别为(817.79±333.92)、(878.56±326.69)mg·h·L^-1。受试制剂的相对生物利用度为(110.4±22.7)%。结论受试制荆与参比制剂为生物等效制剂。Objective To determine the pharmacokinetics and relative bioavailability of sodium valproate tablets in healthy volunteers. Methods A single oral dose of 0. 4 g of sodium valproate tablets was administrated according to randomized two-way crossover design. Sodium valproate concentrations in the plasma were determined by HPLC at different time. The pharmaeokinetic parameters were calculated by DAS 2.0 software. Bioequivalence was determined by a two one-side t tests. Results The pharmacokinetic parameters of the reference formulation and test formulation were as follows.. Cmax was 37.52±9.86 and 40.56±9.36 mg· L^-1 ; tmax was (1. 52±0. 70) and (1.25±0. 53) h;t1/2 was (20.2±6.76) and (20. 05±6.65) h; AUC0-24 was (817.79±333.92) and (878.56±326.69) mg·h · L^-1. The relative bioavailability of the test formulation was (110. 4±22.7)%. Conclusion The 2 formulations are bioequivalent.
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