There are more than a dozen others, including drugs such as celecoxib (Celebrex??) that are in a special class known as selective COX-2 in...Diclofenac in Biological TechnologyCerimon Pharmaceuticals Initiates Phase III Clinical Studies to Evaluate Its Topical Diclofenac Sodium Patch for Mild-to-Moderate Pain SAN FRANCISCO, Feb. 25 /PRNewswire/ -- Cerimon Pharmaceuticals, Inc., announced today the