Amantadine and Rimantadine for Influenza
These anti-viral medications have been available for decades, and are useful in the treatment and prevention of influenza A infection, but not for influenza B. For these medications to be effective, they need to be taken within 48 hours of the start of influenza symptoms, and are typically taken for 5 days, or for 24 to 48 hours after influenza symptoms go away.
Amantadine and rimantidine probably work by preventing the influenza virus from infecting and replicating inside the cells of a person’s respiratory tract. Side effects of these medications can be severe and often limit their use; rimantadine tends to have less severe side effects than amantadine.
Learn more about treatments for influenza.
Sources:
Nathan RA et al. Management of Influenza in Patients With Asthma or Chronic Obstructive Pulmonary Disease. Ann Allergy Asthma Immunol. 2001;87:447-54.
Interim Guidance on Antiviral Recommendations for Patients with Confirmed or Suspected Swine Influenza A (H1N1) Virus Infection and Close Contacts. Centers for Disease Control Website. Accessed April 28, 2009.
Fiore AE, et al. Prevention and Control of Influenza: Recommendations of the Advisory Committee on Immunization Practices (ACIP), 2008. MMWR. August 8, 2008 / 57(RR07);1-60.
DISCLAIMER: The information contained in this site is for educational purposes only, and should not be used as a substitute for personal care by a licensed physician. Please see your physician for diagnosis and treatment of any concerning symptoms or medical condition.
