<unk>  is a nucleoside analogue reverse transcriptase inhibitor that is FDA approved for the treatment of HIV-1 infection. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include headache, nausea, malaise and fatigue, nasal signs and symptoms, diarrhea, and cough..
Lamivudine
Telbivudine
Saquinavir
Fosamprenavir
Abacavir
Entecavir
Tipranavir
Zidovudine