Low  Intermediate  High
Tenofovir (PMPA)  Stavudine (d4T)  Zidovudine (AZT)
Didanosine (ddI)  Lamivudine (3TC)  Abacavir
Zalcitabine (ddC)  Emtricitabine (FTC)  Delavirdine
Nelfinavir  Efavirenz  Nevirapine
Ritonavir  Amprenavir
Saquinavir  Fosamprenavir
Enfuvirtide  Atazanavir
Indinavir