Rosiglitazon způsobuje in vitro mírnou inhibici CYP2C8 (IC50 18 µM) a nízkou inhibici CYP2C9 (IC50 50 µM) (viz bod 4. 5).
Rosiglitazon udviste moderat inhibition af CYP2C8 (IC50 8 μM) og lav inhibition af CYP2C9 (IC50 50 μM) in vitro (se afsnit 4. 5).