|  | 
| Protease 
Inhibitors (PIs)Note: 
Most PIs are now used in combination with low-dose ritonavir (Norvir)
 | 
|  | Agenerase 
(amprenavir) | 
|  | Aptivus 
(tipranavir) | 
|  | Crixivan 
(indinavir) | 
|  | Invirase 
(saquinavir ) | 
|  | Kaletra 
(lopinavir/ritonavir) | 
|  | Lexiva 
(fosamprenavir) | 
|  | Norvir 
(ritonavir) | 
|  | Prezista 
(darunavir) | 
|  | Reyataz 
(atazanavir) | 
|  | Viracept 
(nelfinavir) | 
| Nucleoside 
/ Nucleotide  Reverse Transcriptase Inhibitors (NRTIs) | 
|  | Combivir 
(zidovudine 
+ lamivudine) | 
|  | Epivir 
(lamivudine; 3TC) | 
|  | Emtriva 
(emtricitabine; FTC) | 
|  | Epzicom 
(abacavir + lamivudine) | 
|  | Retrovir 
(zidovudine; 
AZT) | 
|  | Trizivir 
(abacavir 
+ zidovudine +lamivudine) | 
|  | Truvada  (tenofovir 
+ emtricitabine) | 
|  | Videx 
(didanosine; ddI) | 
|  | Viread 
(tenofovir) | 
|  | Zerit 
(stavudine; 
d4T) | 
|  | Ziagen 
(abacavir) | 
| non 
Nucleoside Reverse Transcriptase  Inhibitors 
(nNRTIs)
 | 
|  | Intelence 
(etravirine) | 
|  | Rescriptor 
 (delavirdine) | 
|  | Sustiva 
(efavirenz) | 
|  | Viramune 
(nevirapine) | 
| Entry 
/ Fusion Inhibitors  | 
|  | Fuzeon 
(enfuvirtide) | 
|  | Selzentry/Celsentri 
( maraviroc) | 
| Fixed-dose 
Combinations | 
|  | Atripla 
(efavirenz 
+ emtricitabine + tenofovir) | 
|  | Combivir 
(zidovudine + lamivudine) | 
|  | Trizivir 
(abacavir + zidovudine + lamivudine) | 
|  | Truvada 
(tenofovir + emtricitabine) | 
| Integrase 
Inhibitors | 
|  | Isentress 
(raltegravir) | 
|                                                                                                                           |