Naproxen is a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing hormones that cause inflammation and pain in the body.
Naproxen is used to treat pain or inflammation caused by conditions such as arthritis, ankylosing spondylitis, tendinitis, bursitis, gout, or menstrual cramps. It can also be used to treat acute pain caused by other conditions not listed in this medication guide.
The delayed-release or extended-release tablets are slower-acting forms of naproxen that are used only for treating chronic conditions such as arthritis or ankylosing spondylitis. These forms will not work fast enough to treat acute pain.
Common naproxen side effects may include:
- indigestion, heartburn, stomach pain, nausea;
- headache, dizziness, drowsiness;
- bruising, itching, rash;
- swelling; or
- ringing in your ears.