Http://www.cdc.gov/swineflu/antiviral_swine.htm

CDC - Influenza (Flu) | Antiviral Drugs and Swine Influenza Swine Flu
Antiviral Drugs
Antiviral drugs are prescription medicines (pills, liquid or an inhaler) with activity against influenza viruses, including swine influenza
viruses. Antiviral drugs can be used to treat swine flu or to prevent infection with swine flu viruses. These medications must be prescribed
by a health care professional. Influenza antiviral drugs only work against influenza viruses -- they will not help treat or prevent symptoms
caused by infection from other viruses that can cause symptoms similar to the flu.
There are four influenza antiviral drugs approved for use in the United States (oseltamivir, zanamivir, amantadine and rimantadine). The swine influenza A (H1N1) viruses that have been detected in humans in the United States and Mexico are resistant to amantadine and rimantadine so these drugs will not work against these swine influenza viruses. Laboratory testing on these swine influenza A (H1N1) viruses so far indicate that they are susceptible (sensitive) to oseltamivir and zanamivir. Benefits of Antiviral Drugs
Treatment: If you get sick, antiviral drugs can make your illness milder and make you feel better faster. They may also prevent serious
influenza complications. For treatment, antiviral drugs work best if started as soon after getting sick as possible, and might not work if
started more than 48 hours after illness starts.
Prevention: Influenza antiviral drugs also can be used to prevent influenza when they are given to a person who is not ill, but who has
been or may be near a person with swine influenza. When used to prevent the flu, antiviral drugs are about 70% to 90% effective. When
used for prevention, the number of days that they should be used will vary depending on a person’s particular situation.
CDC Recommendation
CDC recommends the use of oseltamivir or zanamivir for the treatment and/or prevention of infection with swine influenza viruses.
z Oseltamivir (brand name Tamiflu ®) is approved to both treat and prevent influenza A and B virus infection in people one year of z Zanamivir (brand name Relenza ®) is approved to treat influenza A and B virus infection in people 7 years and older and to prevent influenza A and B virus infection in people 5 years and older. Recommendations for using antiviral drugs for treatment or prevention of swine influenza will change as we learn more about this new virus. Clinicians should consider treating any person with confirmed or suspected swine influenza with an antiviral drug. Visit: http://www.cdc.gov/swineflu/recommendations.htm for specific recommendations. z Links to non-federal organizations are provided solely as a service to our users. These links do not constitute an endorsement of these organizations or their programs by CDC or the federal government, and none should be inferred. CDC is not responsible for the content of the individual organization Web pages found at these links. File Formas Help:
http://www.cdc.gov/swineflu/antiviral_swine.htm CDC - Influenza (Flu) | Antiviral Drugs and Swine Influenza How do you view different file formats(PDF, DOC, PPT, MPEG) on this site? Page last reviewed April 27, 2009 10:00AM ET Page last updated April 27, 2009 10:00AM ET Content source: Centers for Disease Control and Prevention Centers for Disease Control and Prevention 1600 Clifton Rd. Atlanta, GA 30333, USA 800-CDC-INFO (800-232-4636) TTY: (888) 232-6348, 24 Hours/Every Day - cdcinfo@cdc.gov http://www.cdc.gov/swineflu/antiviral_swine.htm

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