Answer
Gemfibrozil, an inhibitor of cytochrome P450 2C8, is reported to increase plasma concentrations of pioglitazone when administered concomitantly with pioglitazone hydrochloride.
Sources for this answer
- Pioglitazone 45 mg TabletsSandoz Limited · emc · SmPC §5.2 Pharmacokinetic properties · Version 6Document updated
Sources checked