Diclofenac Potassium is a nonsteroidal anti-inflammatory (NSAID) compound. It is benzene-acetic acid derivative, showing cyclooxygenase-2 enzyme inhibition. It is launched as an immediate release tablet in order to provide quick pain relief.1,2 The chemical name of diclofenac potassium is 2-[(2,6-dichlorophenyl)amino]-benzeneacetic acid.