This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Viral Drugs, Subject name: Pharmacology
[{'content': 'Which antiviral drug is used in both HIV an hepatitis B:- \nSelect and explain. \nA. Acyclovir, B. Abacavir, C. Emtricitabine, D. Enfuviide', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Drugs used in treatment of both HIV and Hepatitis B: * Lamivudine * Emtricitabine * Tenofovir Acyclovir and Abacavir are protease inhibitors used in treatment of HIV. Enfuviritide is a Gp41 inhibitor, it inhibits the fusion of virus with host cell.', 'role': 'assistant'}]