What Are the Side Effects of 500 Mg of Naproxen?


Quick Answer

Potential side effects of naproxen include constipation, diarrhea, gas, headache and excessive thirst, according to MedlinePlus. Dizziness, lightheadedness, drowsiness, sleeping problems and ringing in the ears may also occur while taking naproxen. These side effects should be reported to a doctor if they are severe or unrelieved.

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Full Answer

Some of naproxen's side effects are serious, including vision changes, excessive tiredness, unexplained weight gain, confusion and unusual bruising, notes MedlinePlus. Other serious side effects include nausea, stomach pain, yellowing of the skin or eyes, and decreased urination. Patients are instructed to contact their doctor immediately if they experience serious side effects. Emergency medical attention is necessary if symptoms of an allergic reaction to naproxen occur, including hives, difficulty breathing, or swelling of the face, lips, tongue or throat, explains Drugs.com.

Naproxen is a non-steroidal anti-inflammatory drug, or NSAID, that is commonly used to treat pain, inflammation and fever, states MedlinePlus. Patients who take NSAIDs, including naproxen, may experience a higher risk of heart attack or stroke than people who do not take NSAIDs. These medications are also capable of causing ulcers, bleeding or holes in the stomach and other parts of the digestive system. Patients with a history of prolonged NSAID use may have a higher risk of experiencing these side effects.

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