What are the side effects of lacosamide?

A number of side effects may occur while taking lacosamide, although some are more common than others. Minor side effects include:

  • diarrhea
  • constipation
  • dry mouth
  • dizziness
  • drowsiness
  • loss of coordination or balance
  • blurred vision
  • sensation of spinning
  • trouble concentrating
  • tremors
  • muscle spasms
  • nausea
  • vomiting
  • headaches
  • ringing ears

Contact your doctor if these symptoms persist or become worse.

More serious side effects may occur. If you experience any of the following side effects, seek immediate medical help:

  • allergic reactions (i.e. skin rash, hives or itching, breathing difficulty, swelling in the face, tongue, throat or lips)
  • memory loss
  • lightheadedness
  • fainting
  • falling
  • confusion
  • fever
  • irregular heart rate
  • numbness
  • tingling
  • back pain
  • thoughts of suicide
  • mood changes
  • anxiety
  • panic
  • hyperactivity
  • talkativeness
  • restlessness
  • agitation
  • aggression
  • impulsiveness
  • unusual tiredness or weakness
  • fever
  • swollen glands
  • double vision
  • easy bleeding or bruising
  • extreme nausea or stomach pain
  • bloody or cloudy urine
  • less urine
  • rapid weight gain
  • swelling
  • yellowed skin or eyes

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.