“…The classification of NSAIDs can be based on their chemical structure, as well as their selectivity toward cyclooxygenase. Due to structural differences, one can distinguish salicylates, indole acetic acid derivatives (e.g., indomethacin), phenylacetic acid derivatives (e.g., diclofenac, aceclofenac), phenylpropionic acid derivatives (e.g., ibuprofen, naproxen, ketoprofen), and enolic acid derivatives (e.g., oxicams) 3,4 . The mechanism of action of NSAIDs is related to the arachidonic acid cycle and depends on the release of prostaglandins (PGs) and their effects on the tissues 5 .…”