cobicistat

noun
co·​bic·​i·​stat | \ kō-ˈbik-i-ˌstat How to pronounce cobicistat (audio) \

Medical Definition of cobicistat

: a drug C40H53N7O5S2 that is administered chiefly in conjunction with atazanavir or darunavir to inhibit breakdown and improve their effectiveness in the treatment of HIV infection

Note: Trademarks for preparations containing cobicistat include Evotaz, Prezcobix, Stribild, and Tybost.