The contents of this book represent papers which were presented at the Third International Meeting on "Side-Effects of Anti-Inflammatory and Analgesic Drugs" which was held under the auspices of the University of Verona, Institute of Pharmacology in Verona on 8-11 May 1991. This meeting was held in conjunction with the 13th European Workshop on Inflammation and although publications from this part of the meeting are not published here (they appear in Agents and Actions), we were fortunate in having a group of people interested in inflammation from varying backgrounds. The success of the third meeting followed previous meetings held in Cambridge and Verona respectively and continue a tradition which has now become well established. The meeting brought together physicians, scientists and those concerned with the production and use of anti-inflammatory drugs to a very stimulating conference to discuss basic issues affecting all aspects of side-effects of anti-inflammatory and analgesic drugs as well as their detection and treatment. The meeting was held in the Auditorium of Glaxo Italy and we are very grateful to that company for use of their facilities as well as to the University of Verona, Institute of Pharmacology, for valuable secretarial and administrative help. The success of the conference would not have been possible without valuable financial assistance of the companies listed separately (under Acknowledgements) as well as to the organizers of the 13th European Workshop on Inflammation who collaborated with us.