what antibiotic is used to treat flu?
Oseltamivir (Tamiflu), and zanamivir (Relenza) are usually given for a period of five days to treat the flu. For flu prevention, they are typically used for at least 7 days. In some cases, antivirals may be given for longer periods of time. For prevention of flu, antiviral drugs may be given for at least 7 days.