Selv om in vitro- forsøg tyder på, at CYP2D6 og CYP3A4 spiller en rolle i metaboliseringen af paliperidon, findes der ingen in vivo- evidens for, at disse isozymer spiller en signifikant rolle i metaboliseringen af paliperidon.
Although in vitro studies suggested a role for CYP2D6 and CYP3A4 in the metabolism of paliperidone, there is no evidence in vivo that these isozymes play a significant role in the metabolism of paliperidone.