This page intentionally left blank Blackwell’s Five-Minute Veterinary Consult Clinical Companion Small Animal Toxicology This page intentionally left blank Blackwell’s Five-Minute Veterinary Consult Clinical Companion Small Animal Toxicology Gary D. Osweiler, DVM, MS, PhD, DABVT Lynn R. Hovda, RPH, DVM, MS, DACVIM Ahna G. Brutlag, DVM Justine A. Lee, DVM, DACVECC A John Wiley & Sons, Inc., Publication Edition fi rst published 2011 © 2011 Blackwell Publishing Ltd. Blackwell Publishing was acquired by John Wiley & Sons in February 2007. Blackwell’s publishing program has been merged with Wiley’s global Scientifi c, Technical, and Medical business to form Wiley-Blackwell. Editorial Offi ce 2121 State Avenue, Ames, Iowa 50014-8300, USA For details of our global editorial offi ces, for customer services, and for information about how to apply for permission to reuse the copyright material in this book, please see our Website at www.wiley.com/ wiley-blackwell. 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It is sold on the understanding that the publisher is not engaged in rendering profes- sional services. If professional advice or other expert assistance is required, the services of a competent medical professional should be sought. Library of Congress Cataloging-in-Publication Data Blackwell’s five-minute veterinary consult clinical companion. Small animal toxicology / Gary D. Osweiler ... [et al.]. p. ; cm. – (Blackwell’s five-minute veterinary consult series) Other title: Small animal toxicology Other title: Five-minute veterinary consult clinical companion Includes bibliographical references and index. ISBN 978-0-8138-1985-3 (pbk. : alk. paper) 1. Veterinary toxicology–Handbooks, manuals, etc. I. Osweiler, Gary D. II. Title: Small animal toxicology. III. Title: Five-minute veterinary consult clinical companion. IV. Series: Five minute veterinary consult. [DNLM: 1. Poisoning–veterinary–Handbooks. 2. Veterinary Drugs–toxicity– Handbooks. 3. Animals, Domestic–Handbooks. SF 757.5 B632 2010] SF757.5.B63 2010 636.089'59–dc22 2010016558 9780813819853 A catalog record for this book is available from the U.S. Library of Congress. Set in 10.5 on 13 pt Berkeley by Toppan Best-set Premedia Limited Printed in Singapore Disclaimer The publisher and the authors make no representations or warranties with respect to the accuracy or com- pleteness of the contents of this work and specifi cally disclaim all warranties, including without limitation warranties of fi tness for a particular purpose. No warranty may be created or extended by sales or promotional materials. The advice and strategies contained herein may not be suitable for every situation. This work is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other profes- sional services. If professional assistance is required, the services of a competent professional person should be sought. Neither the publisher nor the authors shall be liable for damages arising herefrom. The fact that an organization or Website is referred to in this work as a citation and/or a potential source of further infor- mation does not mean that the authors or the publisher endorses the information the organization or Website may provide or recommendations it may make. Further, readers should be aware that Internet Websites listed in this work may have changed or disappeared between when this work was written and when it is read. 1 2011 Dedication This Clinical Companion book in small animal toxicology is a specialty extension of The 5 - Minute Veterinary Consult: Canine and Feline by Drs. Larry Tilley and Frank Smith. We are grateful for their vision and innovation which fostered this clinical specialty series. The book owes its completion to our many excellent authors and to the associated editors whose breadth, depth and perseverance supported a timely completion. Thanks also to thoughtful veterinary colleagues who have shared their questions, experiences and wisdom over the years to provide us a daily education in toxicology as a clinical specialty. On a personal note, I thank Sue and our children and grandchildren whose enthusiastic interest in animals is a continuing reminder of the world we share with the animals around us. — Gary Osweiler To old friends, many gone but never forgotten, and to Bob and Tyne, the anchors in my life. — Lynn R. Hovda I would like to dedicate this book to my colleagues at Pet Poison Helpline. My interest in toxicology has been sparked, nurtured, and sustained by their mentorship, knowledge and enthusiasm. I am deeply grateful for their continued support and friendship. In addition, I would like to thank my partner Nathan for his patience and love (and for cooking me dinner every night). — Ahna G. Brutlag To my parents, Ting and Anna, for their wisdom and faith, and to Dan and JP, for being the calm to my craziness. — Justine A. Lee This page intentionally left blank Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii Contributor List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv section 1 Clinical Toxicology chapter 1 Decontamination and Detoxifi cation of the Poisoned Patient . . . . . . 5 chapter 2 Emergency Management of the Poisoned Patient. . . . . . . . . . . . . . 20 chapter 3 Antidotes and Other Useful Drugs. . . . . . . . . . . . . . . . . . . . . . . . . . 39 chapter 4 Laboratory Diagnostics for Toxicology . . . . . . . . . . . . . . . . . . . . . . . 50 section 2 Specifi c Toxicants Alcohols and Glycol Ethers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 chapter 5 Alcohols (Ethanol, Methanol, Isopropanol) . . . . . . . . . . . . . . . . . . . 61 chapter 6 Ethylene Glycol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 chapter 7 Propylene Glycol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Construction and Industrial Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 chapter 8 Glues/Adhesives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 chapter 9 Hydrocarbons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 chapter 10 Hydrofl uoric Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Drugs: Human Prescription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 chapter 11 5-Fluorouracil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 chapter 12 Albuterol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 chapter 13 Amphetamines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 chapter 14 Angiotensin-Converting Enzyme (ACE) Inhibitors. . . . . . . . . . . . . . 131 chapter 15 Atypical Antipsychotics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 chapter 16 Baclofen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 chapter 17 Benzodiazepines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 vii viii CONTENTS chapter 18 Beta-Blockers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 chapter 19 Calcipotriene/Calcipotriol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 chapter 20 Calcium Channel Blockers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 chapter 21 Diuretics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 chapter 22 Opiates and Opioids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 chapter 23 Selective Serotonin Reuptake Inhibitors (SSRIs) . . . . . . . . . . . . . . . 195 Drugs: Illicit and Recreational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 chapter 24 Club Drugs (MDMA, GHB, and Flunitrazepam) . . . . . . . . . . . . . . . 205 chapter 25 Cocaine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 chapter 26 LSD (Lysergic Acid Diethylamide). . . . . . . . . . . . . . . . . . . . . . . . . . 218 chapter 27 Marijuana . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 chapter 28 Methamphetamine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 chapter 29 Miscellaneous Hallucinogens and Dissociative Agents . . . . . . . . . . 237 chapter 30 Opiates and Opioids (Illicit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 chapter 31 PCP (Phencyclidine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Drugs: Over-the-Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 chapter 32 Acetaminophen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 chapter 33 Antitussives/Expectorants (Dextromethorphan). . . . . . . . . . . . . . . . 270 chapter 34 Aspirin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 chapter 35 Decongestants (Pseudoephedrine, Phenylephrine). . . . . . . . . . . . . 285 chapter 36 Human NSAIDs (Ibuprofen, Naproxen). . . . . . . . . . . . . . . . . . . . . . 292 chapter 37 Imidazoline Decongestants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 chapter 38 Nicotine/Tobacco. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 chapter 39 Vitamins and Minerals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 Drugs: Veterinary Prescription. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325 chapter 40 Alpha2-Adrenergic Agonists (Detomidine, Dexmedetomidine, Romifi dine, Xylazine). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 chapter 41 Ivermectin/Milbemycin/Moxidectin. . . . . . . . . . . . . . . . . . . . . . . . . 332 chapter 42 Phenylpropanolamine (PPA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343 chapter 43 Pimobendan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349 chapter 44 Veterinary NSAIDs (Carprofen, Deracoxib, Firocoxib, Ketoprofen, Meloxicam, Tepoxalin). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 Envenomations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363 chapter 45 Black Widow Spiders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365 chapter 46 Brown Recluse Spiders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370