- Drugs listed on the Dexilant label including antiretrovirals (Rilpivirine-containing products, Atazanavir, Nelfinavir, Saquinavir, etc), Warfarin, Methotrexate, Drugs Dependent on Gastric pH for Absorption (e.g., iron salts, erlotinib, dasatinib, nilotinib, mycophenolate mofetil, ketoconazole/itraconazole), Tacrolimus, CYP2C19 or CYP3A4 Inducers or inhibitors.