Biochem/physiol Actions Fluibiprofen is a cyclooxygenase (COX) inhibitor, which is an enzyme responsible for the conversion of arachidonic acid to prostaglandin G2 (PGG2) and PGG2 to prostaglandin H2 (PGH2) in the prostaglandin synthesis pathway. This decreases the prostaglandins which cause inflammation, pain, swelling and fever. Flurbiprofen inhibits the activity of both COX-1 and -2. The S enantiomer inhibits prostaglandin synthesis and has both anti-inflammatory and analgesic activity, while the R enantiomer does not inhibit prostaglandin synthesis and displays only analgesic activity. |