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Determination of mitiglinide in human plasma by liquid chromatography-tandem mass spectrometry and its pharmacokinetic study
Author(s): 
Pages: 1308-1313
Year: Issue:  14
Journal: Chinese Journal of New Drugs

Keyword:  LC-MS/MS 米格列奈 药代动力学;
Abstract: 目的:建立人血浆中米格列奈浓度的LC-MS/MS检测方法,研究米格列奈钙片单次及连续给药后在健康人体内的药代动力学。方法:应用建立的LC-MS/MS法测定人血浆米格列奈浓度,以DAS软件计算主要药代动力学参数。结果:健康受试者单次给药5,10,20 mg主要药代动力学参数:Cmax为(435.3±182.5),(811.7±276.0)和(1 549.8±353.2)μg.L-1;Tmax为(0.642±0.61),(0.508±0.29)和(0.5±0.167)h;t1/2为(1.445±0.146),(1.343±0.215)和(1.404±0.209)h;AUC0t为(725.7±154.8),(1 504.3±285.3)和(2 784.9±554.0)μg.L-1.h。连续给药10 mg主要药代动力学参数:Cmax为(1 005.7±338.0)μg.L-1;Tmax为(0.492±0.384)h;Cmin为(40.33±20.15)μg.L-1;t1/2为(1.670±0.363)h;AUCss为(1 645.2±469.1)μg.L-1.h;Cav为(205.6±58.64)μg.L-1;DF(4.670±0.974)。结论:本方法灵敏度高,无杂质干扰,适用于人体药代动力学研究。米格列奈钙片单次口服520 mg剂量范围内,体内过程呈线性;连续给药7 d,血药浓度d4已达稳态,体内无蓄积。
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