Cox-2:Cyclooxygenase-2, anenzymethat acts tospeedup the production of certain chemical messengers, called prostaglandins that play a key roleinin promotinginflammation. When cox-2 activity is blocked, inflammation is reduced. Unlikecox-1, cox-2 is active only at the site of inflammation, not in thestomach.
![](https://images.rxlist.com/images/quiz/rheumatoid-arthritis/s1.jpg)