PREZISTA, co‑administered with ritonavir (PREZISTA/ritonavir), in combination with other antiretroviral agents, is indicated for the treatment of human immunodeficiency virus (HIV-1) infection in adult and pediatric patients 6 years of age and older, and weighing ≥40 kg [see Use in Children under Precautions, and Pharmacology: Pharmacodynamics: Clinical Studies under Actions].