In- vitro og in- vivo forsøg har vist, at gemfibrozil hæmmer CYP2C8, CYP2C9, CYP2C19, CYP1A2, UGTA1 og UGTA3.
In vitro and in vivo studies have shown that gemfibrozil inhibits CYP2C8, CYP2C9, CYP2C19, CYP1A2, UGTA1 and UGTA3.