Samtidig administration af Ritonavir vil sandsynligvis resulterer i forhøjede plasmakoncentrationer af amiodarone, bepridil, encainide, flecanide, propafenon, og kinidin og er derfor kontraindiceret (se sektion 4. 3).
Ritonavir co-administration is likely to result in increased plasma concentrations of amiodarone, bepridil, encainide, flecanide, propafenone, and quinidine and is therefore contraindicated (see section 4.3).