antiretroviral

adj

1. That combats infection by retroviruses.

   “Begun in 2003 and covering some 50 countries, Pepfar has saved the lives of an estimated 13m people living with HIV-Aids, mostly in Africa, by providing them with antiretroviral drugs.”

noun

1. An agent that combats retroviruses.

   “Inequality, research shows, [is why] we still see Aids-related deaths in an era when we have all the antiretrovirals, HIV prevention pills, vaginal rings, injections and harm-reduction plans needed to end the pandemic.”