作者:邵妲 指导教师:钟大放研究员 I Abstract Evaluation of bioequivalence and dissolution of valsartan hydrochlorothiazide tablets
Evaluation of bioequivalence and dissolution of valsartan hydrochlorothiazide tablets Abstract OBJECTIVE To evaluate the bioequivalence of valsartan hydrochlorothiazide tablets in humans after oral administration using validated chromatographic–tandem mass spectrometric (LC–MS/MS) method for simultaneous determination of valsartan and hydrochlorothiazide. The potential cause of bioinequivalence would be investigated by dissolution test. METHOD The clinical study was a single-center study with an open, randomized double-way crossover design. Test and reference preparations containing 160 mg of valsartan and 25 mg of hydrochlorothiazide were given to 36 healthy male volunteers. Plasma concentrations of valsartan and hydrochlorothiazide were determined simultaneously by LCMS/MS. The ic parameters and relative bioavailability were calculated, and the bioequivalence between test and reference preparations were evaluated. The dissolution profiles of tes