How effective are antiviral drugs at preventing the flu?

When used to prevent the flu, antiviral drugs are about 70% to 90% effective against susceptible viruses (i.e., viruses that are not resistant to the antiviral medication). It’s important to remember that flu antiviral drugs are not a substitute for getting a flu vaccine.

Last Updated: 09/23/2009

• Are there targeted groups for treating the flu with an antiviral drug?
• How long should patients receive treatment with antiviral drugs?

• Treatment & Medicine
  • Antiviral Treatment