Langtids karcinogenicitetsforsøg af lopinavir/ ritonavir i mus viste en ikke genotoksisk, mitogen induktion af levertumorer, som generelt menes at have lille relevans for mennsker.
Long-term carcinogenicity studies of lopinavir/ ritonavir in mice revealed a nongenotoxic, mitogenic induction of liver tumours, generally considered to have little relevance to human risk.