Mulberrin is a flavone with two isopentenyl groups at positions 3 and 8. Mulberrin is a strong inhibitor of OATP2B1 with more than 80% inhibition.Mulberrin also inhibits organic anion-transporting polypeptide (OATP)-mediated uptake of Atorvastatin, Fluvastatin, and Rosuvastatin.