Didanosine, Lamivudine, and Tenofovir are NRTIs that inhibit nucleotide biding to reverse transcriptase and terminate the DNA chain so those don't affect viral entry. Nevirapine is an NNRTIs that binds to reverse transcriptase and thus also doesn't affect viral entry. Enfuvirtide binds gp41 to inhibit the fusion of HIV and the target cell, thus inhibiting viral entry.
submitted by โhungrybox(1277)
enFUviritide -> used for fusion of HIV virus and target cell