Prostanoid mediators derived from arachidonic acid and sites of drug action. ASA, acetylsalicylic acid (aspirin); LT, leukotriene; NSAID, nonsteroidal anti-inflammatory drug. (Reproduced, with permission, from Katzung BG, editor: Basic & Clinical Pharmacology, 12th ed. McGraw-Hill, 2012: Fig. 36–2.) Source: Chapter 36. NSAIDs, Acetaminophen, & Drugs Used in Rheumatoid Arthritis & Gout, Katzung & Trevor's Pharmacology: Examination & Board Review, 10e Citation: Trevor AJ, Katzung BG, Kruidering-Hall MM, Masters SB. Katzung & Trevor's Pharmacology: Examination & Board Review, 10e; 2013 Available at: http://accesspharmacy.mhmedical.com/DownloadImage.aspx?image=/data/Books/trev10/trev10_c036f001.png&sec=41820079&BookID=514&ChapterSecID=41817552&imagename= Accessed: October 12, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved