Recent years have seen a huge increase in interest and developments in analgesia in animals. This book provides a practical guide to techniques available to alleviate or prevent pain in dogs and cats. It covers perioperative pain as well as chronic pain, such as pain from osteoarthritis or cancer. The physiology and pathophysiology of pain transmission and the relevant clinical pharmacology of analgesic agents is described. This will then help the reader to understand the reasons for the choice of therapeutic agent or regimen made in later sections. This book will outline the latest information on pain relief and present it in a practical and readable guide to effective analgesic therapy.