- Have received anti-HIV drugs for at least 6 months and/or have shown resistance to each of the 3 types of anti-HIV drugs as follows: nucleoside reverse transcriptase inhibitors (resistant to 1 or more); nonnucleoside reverse transcriptase inhibitors (resistant to 1 or more); and protease inhibitors (resistant to 2 or more, taken either together or 1 after the other for at least 6 months total).