NCIt definition : A nonsteroidal anti-inflammatory drug (NSAID) with analgesic and anti-inflammatory
activities. Upon ophthalmic administration, bromfenac binds to and inhibits the activity
of cyclooxygenase II (COX II), an enzyme which converts arachidonic acid to cyclic
endoperoxides, precursors of prostaglandins (PG). By inhibiting PG formation, bromfenac
is able to inhibit PG-induced inflammation, thereby preventing vasodilation, leukocytosis,
disruption of the blood-aqueous humor barrier, an increase in vascular permeability
and an increase in intraocular pressure (IOP).;