Nucleoside Reverse Transcriptase Inhibitors (NRTIs) NRTIs block reverse transcriptase, an enzyme HIV needs to make copies of itself. abacavir (abacavir sulfate, ABC) Ziagen December 17, 1998 emtricitabine (FTC) Emtriva July 2, 2003 lamivudine (3TC) Epivir November 17, 1995 tenofovir disoproxil fumarate (tenofovir DF, TDF) Viread October 26, 2001 zidovudine (azidothymidine, AZT, ZDV) Retrovir March 19, 1987 Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs) NNRTIs bind to and later alter reverse transcriptase, an enzyme HIV needs to make copies of itself. doravirine (DOR) Pifeltro August 30, 2018 efavirenz (EFV) Sustiva September 17, 1998 etravirine (ETR) Intelence January 18, 2008 nevirapine (extended-release nevirapine, NVP) Viramune June 21, 1996 Viramune XR (extended release) March 25, 2011 ril...