Ritonavir is an antiviral medication in a group of HIV medicines called protease (PRO-tee-ayz)
inhibitors. Ritonavir prevents human immunodeficiency virus (HIV) cells from multiplying in your body.
Ritonavir is used to treat HIV, which causes acquired immunodeficiency syndrome (AIDS).
Ritonavir is not a cure for HIV or AIDS.
Ritonavir may also be used for other purposes not listed in this medication guide.