What drugs are available?
Four drugs are available to treat and/or prevent influenza. They are amantadine and rimantadine, zanamivir, and oseltamivir.
How do they work?
In 1976, the Food and Drug Administration (FDA) approved amantadine to both treat and prevent influenza type A in adults and children 1 year old or older. FDA approved rimantadine-a derivative of amantadine-in 1993 to treat and prevent influenza infection in adults and prevent influenza in children.