CYP3A4- inducere Samtidig administration af EMEND og aktive substanser, som er stærke inducere af CYP3A4- aktivitet (eks. rifampicin, fenytoin, carbamazepin, phenobarbital), bør undgås, idet kombinationen resulterer i reducerede plasmakoncentrationer af aprepitant.
CYP3A4 inducers Concomitant administration of EMEND with active substances that strongly induce CYP3A4 activity (e. g. rifampicin, phenytoin, carbamazepine, phenobarbital) should be avoided as the combination results in reductions of the plasma concentrations of aprepitant that may result in decreased efficacy.