Lægemidler, der inducerer CYP2C19 og CYP3A4 Enzyminducere, der påvirker CYP2C19 og CYP3A4, som for eksempel rifampicin og prikbladet perikum (hypericum perforatum), kan reducere plasmakoncentrationerne af lansoprazol markant.
Drugs which induces CYP2C19 and CYP3A4 Enzyme inducers affecting CYP2C19 and CYP3A4 such as rifampicin, and St John´s wort (Hypericum perforatum) can markedly reduce the plasma concentrations of lansoprazole.