Enzymet cyklooxygenase- 1 (COX- 1) som har beskyttende funktioner, f. eks. i fordøjelseskanalen og nyrerne, hæmmes ikke af robenacoxib.
The cyclooxygenase 1 enzyme (COX-1) which has protective functions, e. g. in the digestive tract and kidneys, is not inhibited by robenacoxib.