Pharmacokinetic and pharmaceutic interaction between digoxin and Cremophor RH40

Abstract

This study demonstrates a pharmacokinetic and pharmaceutic interaction between the emulgent Cremophor RH40 and digoxin, caused by P-glycoprotein inhibition and prolongation of the dissolution time of digoxin tablets by Cremophor RH40, respectively. Our in vivo study in humans supports the validity of in vitro observations on P-glycoprotein.