When and How to Take It

General considerations to keep in mind while taking this medicine include the following:
  • Rimantadine comes in tablet form. It is usually taken by mouth once or twice a day.


  • For small children or others who cannot swallow tablets, your pharmacist can make a liquid form of rimantadine using the tablets. This suspension should be shaken before each dose. 


  • You can take this medication with food or on an empty stomach. If the drug seems to bother your stomach, try taking it with food.
  • For treating the flu, rimantadine works better the earlier it is started. Ideally, it should be started 48 hours of the onset of flu symptoms.
  • For the medication to work properly, it must be taken as prescribed.

Dosage Information

The dose of rimantadine 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 kidney and liver function
  • Other medications you may currently be taking.
As always, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
(Click Rimantadine Dosing for more information.)

Rimantadine Drug Interactions

Rimantadine can interact with a few other medications (see Drug Interactions With Rimantadine).
5 Tips to Keep a Cold at Bay

Rimantadine Hydrochloride (HCL)

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