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Flumadine Dosage

The recommended Flumadine dosage for treating or preventing the flu in adults is 100 mg twice daily. For preventing the flu in children ages 10 and over, the adult dosage is recommended. For children one to nine years old, Flumadine dosing is determined by the child's weight. The recommended dose is 5 mg per kg of body weight once a day.

 

Flumadine Dosage: An Introduction

The dose of Flumadine® (rimantadine hydrochloride) that your healthcare provider recommends will vary depending on a number of factors, including:
 
  • Whether you are treating or preventing the flu
  • Your age
  • Your weight (for children)
  • Your kidney and liver function
  • Other medications you may currently be taking.
     
As always, do not adjust your Flumadine dose unless your healthcare provider specifically instructs you to do so.
 

Flumadine Dosing for Adults

The recommended Flumadine dose for treating or preventing the flu in adults is 100 mg twice daily. A lower dose (Flumadine 100 mg once daily) is recommended for people with kidney failure or severe liver disease and for elderly nursing home residents. For flu treatment, Flumadine should be started as soon as possible within 48 hours of the start of flu symptoms. It should be continued for about seven days after the first symptoms. For flu prevention, it is not clear how long Flumadine should be continued.
 

Flumadine Dosing for Children

Flumadine is approved only for preventing (not treating) the flu in children. For children 10 years old and over, the usual adult dose is recommended (Flumadine 100 mg twice daily). For children age one to nine years old, the recommended dose is based on weight. The recommended dose is 5 mg per kg of body weight (about 2.3 mg per pound) once a day, not to exceed 150 mg per day. In order to get the appropriate dose, Flumadine syrup (instead of tablets) may be used. It is not clear how long Flumadine should be continued.
 
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;