“…Nimesulide and meloxicam, preferential inhibitors of COX-2 (the induced isoform), can often be safely administered to NSAID-sensitive patients [7, 8]. The newer NSAIDs, such as rofecoxib, celecoxib, valdecoxib, parecoxib and etoricoxib, which selectively inhibit COX-2 without affecting the arachidonic acid metabolism [5], showed no clinical crossreactivity and can be considered good alternatives for patients with hypersensitivity to nonselective NSAIDs [5,9,10,11,12,13]. However, selective NSAIDs may provoke hypersensitivity reactions in a minority of patients, particularly in those with cutaneous reactions, with a frequency ranging from 1.6% for rofecoxib to 11.1% for celecoxib [14].…”