DRUG USE AND ABUSE takes an interdisciplinary approach in its coverage of current drug issues. It weaves psychological, historical, cultural, social, biological, and medical perspectives -- emphasizing the idea that a drug's effects depend not only on its properties, but also on the biological and psychological characteristics of its user. This theme is highlighted throughout, and is prominent in discussions of the individual classes of drugs, as well as in the chapters on pharmacology and psychopharmacology. This Fourth Edition features enhanced coverage of prevention and treatment, and provides updates on such contemporary issues as "designer drugs" and the prevalence of usage. It also features a new 4-color design, questions at the beginning of each chapter that draw students into the text, and the clear writing style that has made previous editions so accessible to students at all levels.