尼美舒利(5 g)产品是Nimesulide is a selective cyclooxygenase-2 (COX-2) inhibitor. The IC₅₀ values are 70 and 1.27 uM for human recombinant COX-1 and -2 (at 20 uM arachidonic acid), respectively, and 22 and 0.03 uM for ovine COX-1 and -2 (at 100 uM arachidonic acid), respectively.