- nucleoside reverse transcriptase inhibitor, NRTI - an antiviral drug used against HIV; is incorporated into the DNA of the virus and stops the building process; results in incomplete DNA that cannot create a new virus; often used in combination with other drugs
--1 is a kind of reverse transcriptase inhibitor
--1 is a part of drug cocktail, highly active antiretroviral therapy, HAART
--1 has particulars:zidovudine, Retrovir, ZDV, AZT; lamivudine, 3TC