Table 1  Antiretroviral drugs currently approved by the US Food and Drug Administration for the treatment of HIV infection. HAART comprises the combined use of three or more anti-HIV drugs.
NRTIs  NNRTIs  NtRTIs  PIs  Integrase inhibitors  Entry inhibitors  Maturation inhibitors
Zidovudine  Efavirenz  Tenofovir  Saquinavir  Raltegravir  Enfuvirtidea  Bevirimatb
(AZT)  Nevirapine  (PMPA)  Ritonavir   Maravirocc
Zalcitabine  Delaviridine   Amprenavir
(ddC)    Indinavir
Didanosine    Nelfinavir
(ddI)    Lopinavir
Stavudine    Atazanavir
(d4T)    Fosamprenavir
Abacavir    Tipranavir
Emtricitabine    Darunavir
(FTC)
Lamivudine
(3TC)
Qian et al. (2009) and Kline and Sutliff (2008).
a  Fusion inhibitor.
b  Currently in clinical trials.
c  CCR5 inhibitor.