Under samtidig administration af rifampicin og telithromycin i gentagne doser var Cmax og AUC for telithromycin i gennemsnit nedsat med henholdsvis 79% og 86%.
During concomitant administration of rifampicin and telithromycin in repeated doses, Cmax and AUC of telithromycin were on average decreased by 79% and 86% respectively.