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The purpose of this study was to investigate the possible effects of hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor, simvastatin, on the pharmacokinetics of diltiazem and its main metabolite, desacetyldiltiazem, in rats. HMG-CoA reductase inhibitors and diltiazem are sometimes prescribed as a combination therapy for the prevention or(More)
The purpose of this study was to investigate the possible effects of pioglitazone on the pharmacokinetics of nifedipine and its main metabolite, dehydronifedipine, in rats. The effects of pioglitazone on P-glycoprotein (P-gp) and cytochrome P450 (CYP)3A4 activities were also evaluated. Nifedipine was mainly metabolized by CYP3A4. The pharmacokinetic(More)
BACKGROUND The aim of this study was to investigate the effects of nifedipine on the bioavailability and pharmacokinetics of repaglinide in rats. METHODS The effect of nifedipine on P-glycoprotein (P-gp) and cytochrome P450 (CYP) 3A4 activity was evaluated. The pharmacokinetic parameters of repaglinide and blood glucose concentrations were also determined(More)
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