<prompt> Duration of Oseltamivir treatment for influenza?5 days7 days9 days14 days  <response>: Ans. A. 5 daysa. Oseltamivir oral tablet - 75 mg BD for 5 days for treatment; 75 mg OD for prophylaxisb. Zanamivir inhalation-10 mg BD for 5 days for treatment; 10 mg OD for prophylaxisc. Zanamivir may exacerbate bronchospasm in asthmatic patients.d. Oseltamivir has been associated with neuropsychiatric side effects in children. 