In vitro - og in vivo - forsøg har vist, at meloxicam hæmmer cyclooxygenase- 2 (COX- 2) i højere grad end cyclooxygenase - 1 (COX- 1).
In vitro and in vivo studies demonstrated that meloxicam inhibits cyclooxygenase-2 (COX-2) to a greater extent than cyclooxygenase-1 (COX-1).