Are there side effects of taking Aleve (naproxen)?

Side effects may occur when taking Aleve. Individuals may experience only some or no side effects from the medication. Tell your doctor if the following side effects do not go away or become more severe:
  • upset stomach
  • heartburn
  • abdominal pain
  • diarrhea
  • constipation
  • bloating
  • dizziness
  • lightheadedness
  • drowsiness
  • headache
  • nervousness
  • insomnia
  • skin rash or itchiness
  • mouth sores
  • blurry vision
  • excessive thirstiness
  • hearing problems
  • ringing in ears
  • burning and tingly limbs
  • cold-like symptoms
Stop taking Aleve and call your doctor or 911 immediately if the following less common, but more serious, side effects occur:
  • chest pain
  • rapid heartbeat
  • breathing difficulties
  • excessive weakness
  • speech slurring
  • vision changes
  • light sensitivity
  • balance problems
  • seizure
  • nausea
  • abdominal pain, especially in the upper right section
  • loss of appetite
  • bloody, black, clay-colored, or tar-like stools
  • bloody vomit, or vomit with coffee grounds appearance
  • edema
  • sudden, unexplained weight gain
  • changes in urination
  • dark, cloudy, or bloody urine
  • jaundice
  • flu-like symptoms
  • fever
  • chills
  • sore throat
  • headache
  • stiff neck
  • backache
  • severe skin blistering, peeling, or reddish rash
  • unexplained bruising or purple spots on the skin
  • excessive skin paleness
Because other side effects may occur, you should notify a doctor about any new symptoms so that a doctor can determine if the symptoms are related to use of this medication.

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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.