Science and Education Publishing American Journal of Medicine Studies 2 1 2014 01 24 Study of Anthranylic Acid Derivatives: Mefenamic Acid and Its Various Analogues 24 30 EN Mohammad Asif Department of Pharmacy, GRD (PG) IMT, Dehradun, India AJMS2014214 10.12691/ajms-2-1-4 2012 12 18 2013 12 06 2014 01 24 Anthranylic acid derivatives are direct structural analogs of salicylic acid derivatives. They possess analgesic, anti-inflammatory, and antipyretic activity. They are similar to pyrazolones in terms of analgesic and antipyretic activity, yet they exceed the anti-inflammatory activity of salicylates. The mechanism of action of this series of nonsteroid, anti-inflammatory analgesics is not conclusively known. One of the early advances in the search for nonnarcotic analgesics was centered in the N-arylanthranilic acids. The outstanding characteristic of mefenamic acid is primarily anti-inflammatory , and secondarily, some possess analgesic properties.