Tamiflu is an antiviral agent used to treat the flu (influenza A and B) in patients 1 year of age and older who have had symptoms for no more than 2 days. Oseltamivir is also used to prevent the flu in patients age 13 and over in the U.S. who must be in close contact with someone who has the flu, such as another household member. Tamiflu may be used for other conditions as determined by your doctor.
