NCIt definition : The sodium salt form of naproxen, a member of the arylacetic acid group of non-steroidal
anti-inflammatory drugs (NSAIDs) with anti-inflammatory analgesic and antipyretic
properties. Naproxen sodium reversibly and competitively inhibits cyclooxygenases
(COX), thereby blocking the conversion of arachidonic acid to pro-inflammatory prostaglandins.
This inhibits the formation of prostaglandins that are involved in pain, inflammation
and fever.;