<prompt> All of the following are nucleoside reverse transcriptase inhibitors RTIs, EXCEPTZidovudineLamivudineNevirapineDidanoside  <response>: C Nevirapine RTIs come in 3 forms: Nucleoside analog reverse transcriptase inhibitors NARTIs or NRTIs Nucleotide analog reverse transcriptase inhibitors NtARTIs or NtRTIs Non-nucleoside reverse transcriptase inhibitors NNRTIs Nucleoside analog reverse transcriptase inhibitors NARTIs or NRTIs: Zidovudine; Didanosine; Zalcitabine; Stavudine; Lamivudine; Abacavir; Emtricitabine Nucleotide analog reverse transcriptase inhibitors NtARTIs or NtRTIs: Tenofovir, Adefovir Non-nucleoside reverse transcriptase inhibitors NNRTIs: Efavirenz; Nevirapine; Delavirdine; Portmanteau inhibitors. 