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
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:
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
chest pain or discomfort
dizziness
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
difficulty with concentrating
headache
hearing loss
impaired concentration
indigestion
lack or loss of strength
loss of appetite
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.
Other Rimantadine articles
Why trust our experts?

