This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'A drug which is entry inhibitor ? \nSelect and explain. \nA. Enfuviide, B. Abacavir, C. Eirez, D. Amprenavir', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Enfuviide Antiviral drugs 1 . Anti-herpes virus - Idoxuridine, Acyclovir, Valacyclovir, Famciclovir, Ganciclovi Foscarnet, Trifluridine, Vidarabine. 2. Anti-Retrovirus Nucleoside reverse transcriptase inhibitors (NIs) - Zidovudine, Didanosine, Zalcitabine, Stavudine, Lamivudine, Abacavir. Nonnucleoside reverse transcriptase inhibitors - Nevirapine, Eirenz, Delavirdine. Protease inhibitors - Ritonavir, Indinavir, Nelfinavir, Saquinavir, Amprenavir, Lopinavir. Fusion inhibitors (entry inhibitor) - Enfuviide 3. Anti-influenza virus - Amantadine, Rimantadine, Oseltamivir, Zanamivir. 4. Nonselective - Ribavirin, Adefovir, Dipivoxil, Interferon a.", 'role': 'assistant'}]