Samtidig administration af lapatinib og capecitabine eller trastuzumab ændrede ikke farmakokinetikken for disse midler (eller metabolitterne af capecitabine) eller lapatinib i betydelig grad.
Concomitant administration of lapatinib with capecitabine or trastuzumab did not meaningfully alter the pharmacokinetics of these agents (or the metabolites of capecitabine) or lapatinib.