Amantadine Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • accidental falls
  • If experienced, these tend to have a Less Severe expression i

  • dry mouth
  • constipation
  • difficulty concentrating
  • dizziness
  • difficulty sleeping
  • nervousness
  • INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

  • clouding of the lens of the eye called cataracts
  • If experienced, these tend to have a Less Severe expression i

  • nightmares
  • dry eye
  • urinary tract infection
  • skin discoloration
  • arthritis
  • muscle spasm
  • drowsiness
  • low energy
  • abnormal manner of walking
  • purplish discoloration of skin that looks like netting
  • decreased appetite
  • headache
  • cough
  • nausea
  • vomiting
  • diarrhea
  • irritability
  • abnormal dreams
  • abnormal muscle movements
  • anxious feelings
  • RARE side effects

    If experienced, these tend to have a Severe expression i

  • very low levels of granulocytes, a type of white blood cell
  • low levels of a type of white blood cell called neutrophils
  • paranoia
  • suicidal behavior
  • suicidal thoughts
  • deposits on the eye
  • chronic heart failure
  • seizures
  • a sudden onset of sleep
  • painful and involuntary movement of the eyes called oculogyric crisis
  • If experienced, these tend to have a Less Severe expression i

  • delusions
  • dryness of the nose
  • throat dryness
  • poisoning caused by anticholinergic medication
  • an inability to control impulsive behavior
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    Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

    CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.