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Rimantadine

Rimantadine Side Effects

Kristianne Hannemann, PharmDConnie Zheng, PharmD
Reviewed by Kristianne Hannemann, PharmD, Connie Zheng, PharmD
Last reviewed on June 16, 2023

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Nausea (3%)
  • Vomiting (2%)
  • Trouble sleeping (2%)
  • Dizziness (2%)

Less Common Side Effects

  • Dry mouth
  • Poor appetite
  • Nervousness
  • Weakness or lack of energy
  • Stomach pain
  • Diarrhea

Rimantadine serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Seizures
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Source: DailyMed

The following Rimantadine side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common

Difficult or labored breathing

shortness of breath

tightness in the chest

wheezing

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

Anxiety

chest pain or discomfort

dizziness

dry mouth

fainting

fast, slow, or irregular heartbeat

hyperventilation

irregular heartbeats

irritability

lightheadedness

nervousness

pounding or rapid pulse

restlessness

seeing, hearing, or feeling things that are not there

shaking

trouble with sleeping

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common

Abdominal or stomach pain

acid or sour stomach

belching

continuing ringing or buzzing or other unexplained noise in the ears

diarrhea

difficulty with concentrating

headache

hearing loss

heartburn

impaired concentration

indigestion

lack or loss of strength

loss of appetite

nausea

rash

shakiness and unsteady walk

sleepiness or unusual drowsiness

stomach discomfort, upset, or pain

unsteadiness, trembling, or other problems with muscle control or coordination

unusual tiredness or weakness

vomiting

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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Why trust our experts?

Kristianne Hannemann, PharmD, is a licensed pharmacist in California. She has been a retail pharmacy manager and staff pharmacist for over 7 years and has contributed drug information content to different health companies.
Connie Zheng, PharmD, is a drug information pharmacist at GoodRx and a licensed pharmacist in California. She has over 6 years of experience working in independent pharmacies.

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