<prompt> Which of the following drug is a reverse transcriptase inhibitor?IndinavirRitonavirNelfinavirAbacavir  <response>: ANTIVIRAL DRUG: CLASSI FICATION 1.Anti-Herpes virus Idoxuridine, Acyclovir, Valacyclovir, Famciclovir, Ganciclovir, Foscarnet 2 Anti-Retrovirus a Nucleoside reverse transcriptase inhibitors Nis: Zidovudine AZT, Didanosine, Zalcitabine, Stavudine, Lamivudine, Abaca vir b Nonnucleoside reverse transcriptase inhibitors NNis: Nevirapine, Eirenz, Delavirdine c Protease inhibitors: Ritonavir, Indinavir, Nelfinavir, Saquinavir, Amprenavir, Lopinavir 3. Anti-Influenza virus Amantadine, Rimantadine 4. NonselectiVe antiviral drugs Ribavirin, Lamivudine, Adefovir dipivoxil, Interferon alpha. ESSENTIALS OF MEDICAL PHARMACOLOGY K.D.TRIPATHI SIXTH EDITION PAGE NO:767 