Non-steroidal anti-inflammatory drugs, NSAIDs, from the carboxylic acid family, derivatives of N-phenylanthranilic acid, such as tolfenamic acid, diclofenac, mefenamic, flufenamic, and from the oxicams family, piroxicam, tenoxicam, meloxicam and lornoxicam, are widely used in inflammatory and painful diseases of rheumatic and non-rheumatic origin. The anti-inflammatory activity of NSAIDs and most of its other pharmacological effects are related to the inhibition of the conversion of arachidonic acid to prostaglandins, which are mediators of the inflammatory process. NSAIDs are used for the...