Usual adult Dose of Oseltamivir is 75 mg twice daily for 5 days
In Pediatric age group, dose is 3 mg/kg/dose or one can follow the weight based chart as given below
Duration of Oseltamivir Treatment is 5 days
Oseltamivir is also given as Chemoprophylaxis to House hold contacts of the cases who qualify as high risk
Duration of Post Exposure Prophylaxis is 10 days after last exposure.
Oseltamivir is available as 75 mg Capsules and also as syrup (12mg per ml)
Vaccine vs Chemoprophylaxis-
Influenza vaccine cannot substitute for Oseltamivir Chemoprophylaxis and Oseltamivir prophylaxis should be given to high risk contacts irrespective of Vaccination status.