Lægemidler, der hæmmer CYP3A4 Lægemidler, der hæmmer CYP3A4, såsom ketoconazol, itraconazol, proteasehæmmere, makrolider etc., kan markant øge plasmakoncentrationerne af lansoprazol.
Drugs which inhibits CYP3A4 Drugs which inhibit CYP3A4 such as ketokonazole, itraconazole, protease inhibitors, macrolides etc may markedly increase the plasma concentrations of lansoprazole.