Prostaglandin G/H synthase 2 or Ciclooxygenase

arachidonate

COX-2 Acetylated

prostaglandin G2

prostaglandin H2

acetylsalicylic acid

salicylic acid

15R-hydroxy-5Z,8Z,11Z,13E-eicosatetraenoic acid L

OR

OR

Prostaglandin G/H synthase 1 or ciclooxigenase 1

COX-1acetylated