Tamiflu, known generically as oseltamivir, is one of the most commonly prescribed antiviral medications for influenza. It works by blocking the virus from spreading within your body, helping to reduce ...

The usual Tamiflu dosage for treatment of the flu in adults is 75 mg twice per day for 5 days. The typical Tamiflu dosage for the prevention of the flu in adults is 75 mg once per day for at least 10 ...

Tamiflu (oseltamivir) is a brand-name drug that’s prescribed for the flu. Tamiflu comes as a capsule and liquid suspension, both of which you take by mouth. The dosage varies depending on whether the ...