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作 者:王璇[1] 徐海燕[1] 张凤娥[1] 贾君[1] 汤芳玲[1] 万英凤[1] 潘澄[1] 袁波[1]
出 处:《中南药学》2010年第2期125-128,共4页Central South Pharmacy
摘 要:目的研究利巴韦林片在健康人体内的药物动力学,并对2种制剂的生物等效性进行判定。方法采用液质联用(LC-MS/MS)法测定血浆中利巴韦林浓度并计算其主要药动学参数。结果受试制剂和参比制剂中利巴韦林的主要药动学参数如下:tmax分别为(1.35±0.38)、(1.30±0.50)h;Cmax分别为(674.8±227.7)、(693.94±223.3)ng·mL-1,t1/2分别为(25.6±6.0)、(26.6±5.3)h;AUC0-1分别为(8606.2±2132.0)、(8452.0±1978.8)ng·h·mL-1,AUC0-∞分别为(9903.3±2494.1)、(9632.1±2404.2)ng·h·mL-1,相对生物利用度为(102.2±9.5)%。结论2种利巴韦林制剂具有生物等效性。Objective To determine the pharmacokinetics and bioequivalence between 2 ribavirin tablets in healthy vol-unteers. Methods A single oral dose of 2 ribavirin tablets was given to 18 healthy volunteers in a randomized 2-period crossover study. The concentrations of ribavirin in the plasma were determined by the liquid chromatography tandem mass spectrometry (LC-MS/MS) method. The plasma concentratio-time curves were plotted and the main pharmacokinetic parameters were calculated. Results The main pharmacokinetic parameters of test and reference tablets in the plasma were as follows: tmax was (1.35 ± 0.38) and (1.33 ±0.50) h, Cmax was (674.8±227. 7) and (693.9± 223.3) ng-mL-1; t1/2was (25. 6±6.0) and (26.6±5.3) h, AUC0-1,was (8 606.2 ± 2 132.0) and (8 452.0± 1 978. 8) ng ·h · mL- 1 ; AUC0- ∞was (9 903.3 ± 2 494.1) and (9 632.1 ± 2 404.2) ng · h · mL-1 , respectively. The relative bioavailabitity of the tested drug was ( 102.2 ± 9.5) %. Conclusion The 2 ribavirin formulations are bioequivalent in healthy volunteers.
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