Antiviral treatment — Antiviral medicines can be used to treat or prevent influenza. When used as a treatment, the medicine does not eliminate flu symptoms, although it can reduce the severity and duration of symptoms by about one day. Not every person with influenza needs an antiviral medicine, but some people do; the decision is based upon several factors. If you are severely ill and/or have risk factors for developing complications of influenza, you will need an antiviral agent. People who are only mildly ill and have no risk factors for complications are usually treated with an antiviral medicine if they have had symptoms for 48 hours or less, but they are not treated if they have had symptoms for more than 48 hours.
Antiviral medicines that are used to treat or prevent the flu include oseltamivir (brand name: Tamiflu), zanamivir (brand name: Relenza), and peramivir (brand name: Rapivab). Two other antiviral medicines, rimantadine and amantadine, were used in the past but are generally no longer effective because most flu viruses are now resistant to them. Antiviral treatment is most effective for seasonal influenza when it is taken within the first 48 hours of flu symptoms.
The best antiviral medicine depends upon the type of influenza virus, if the virus could be resistant, and some individual factors. A doctor or nurse should make this decision
Antiviral treatment — Antiviral medicines can be used to treat or prevent influenza. When used as a treatment, the medicine does not eliminate flu symptoms, although it can reduce the severity and duration of symptoms by about one day. Not every person with influenza needs an antiviral medicine, but some people do; the decision is based upon several factors. If you are severely ill and/or have risk factors for developing complications of influenza, you will need an antiviral agent. People who are only mildly ill and have no risk factors for complications are usually treated with an antiviral medicine if they have had symptoms for 48 hours or less, but they are not treated if they have had symptoms for more than 48 hours.Antiviral medicines that are used to treat or prevent the flu include oseltamivir (brand name: Tamiflu), zanamivir (brand name: Relenza), and peramivir (brand name: Rapivab). Two other antiviral medicines, rimantadine and amantadine, were used in the past but are generally no longer effective because most flu viruses are now resistant to them. Antiviral treatment is most effective for seasonal influenza when it is taken within the first 48 hours of flu symptoms.The best antiviral medicine depends upon the type of influenza virus, if the virus could be resistant, and some individual factors. A doctor or nurse should make this decision
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