There are currently 32 drugs in six categories that have been approved by the Food and Drug Administration (FDA): 1.
2. Non-nucleoside Reverse Transcriptase Inhibitors (NNRTIs).
3. Protease Inhibitors (PIs).
4. Fusion Inhibitors (FIs).
5.Entry Inhibitors (EIs).
6. Integrase Inhibitors (Integrase Inhibitors).