Lopinavir / ritonavir (Kaletra): in an open-label, non-fasting pharmacokinetic study, the AUC, Cmax and Cmin of lopinavir were decreased by 38%, 28% and 52% respectively when amprenavir (750 mg twice daily) was given in combination with Kaletra (400 mg lopinavir + 100 mg ritonavir twice daily).