Tamiflu is a prescription medicine used to treat the flu (influenza) in people 2 weeks of age and older who have had flu symptoms for no more than 2 days. Tamiflu can also reduce the chance of getting the flu in people 1 year and older.
Tamiflu does not prevent bacterial infections that may happen with the flu.
Tamiflu is not recommended for people with end-stage renal disease (ESRD) who are not receiving dialysis.
Tamiflu is not a substitute for an annual flu vaccination.
Do not take Tamiflu if you are allergic to oseltamivir phosphate or any of the ingredients in Tamiflu.