Naproxen is a non-steroidal anti-inflammatory drug, like
aspirin. It is a cyclooxygenase
inhibitor, interfering with COX-1 and COX-2 forms of that enzyme. Its
effects on COX-2 give it fever reducing (antipyretic) abilities, analgesic
(pain relief) functions, and anti-inflammatory functions. Its effects on
COX-1 give it the undesirable effects as an anticoagulant and as an irritant
of the stomach lining.
Naproxen is used to relieve fever and pain, and symptoms of arthritis, gout,
bursitis, and menstrual cramping.
Naproxen has been found to increase the risk of heart attack and stroke