This fourth edition of Symptoms and Signs of Substance Use has been thoroughly updated and revised, continuing to provide trusted information from leading experts. There are few countries that are not touched by some aspect of substance misuse and the consequences for individuals, families and the wider community can be devastating. This edition includes new legislation, in relation to cannabis and novel psychoactive substances (NPS), as well as the following features: basic principles of treatment for the most commonly encountered substances—from tobacco and alcohol to cocaine and heroin, as well as 'designer' drugs, the legal aspects of substance use highlighted throughout, a convenient A-Z format helps the reader find information at a glance, a bibliography directs the reader to more authoritative information about each substance and review questions at the end of parts I and II help to embed learning. With specialist information clearly explained along with a full glossary, this book is essential for all health professionals and others needing a concise and up-to-date overview of the signs and symptoms of substance use, as well as the management and treatment options available. Those working in primary and secondary care, including general forensic medicine, emergency medicine, psychiatry, sexual offence medicine, and general practice, will find this text invaluable. This book is also an excellent resource for police officers, as well as a quick reference guide for forensic scientists, toxicologists, and postgraduate students in forensic medicine courses.