This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Viral, Subject name: Pharmacology
[{'content': 'Oseltamivir dose is - \nSelect and explain. \nA. 75 mg BD x 5 days orally, B. 75mg BD x 5 days i.v., C. 200 mg BD x 5 days orally, D. 200 mg BD x 5 days i.v.', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e. 75 mg BD x 5 days orallyRifampcino Oseltamivir and Zanamivir act as neuraminidase inhibitors and prevent the virion release by causing clumping of mature virions. These drugs are effective against both Influenza A and Influenza B.o Oseltamivir is drug of choice for bird flu (H5N1) as well as swine flu (H1N1).Routes of administration:o Oseltamivir - Orally (S/E - Nausea and vomiting)o Zanamivir - Inhalation (S/E - Bronchospasm)o Peramivir - Intravenous (LV. form of Zanamivir)", 'role': 'assistant'}]