Dette giver in vivo evidens for lav tilbøjelighed til at forårsage interaktion med substrater for CYP3A4, CYP2C8, CYP2C9 og organisk kationtransportør (OCT).
In clinical studies, sitagliptin did not meaningfully alter the pharmacokinetics of metformin, glyburide, simvastatin, rosiglitazone, warfarin, or oral contraceptives, providing in vivo evidence of a low propensity for causing interactions with substrates of CYP3A4, CYP2C8, CYP2C9, and organic cationic transporter (OCT).