Thoroughly updated for its Fifth Edition, this quick-reference handbook provides complete information on the major classes of drugs used in current psychiatric practice--including a new chapter on psychotropics for treating substance use disorders. Coverage of each drug class includes mechanisms of action, indications, therapeutic uses, side effects, interactions, and caveats regarding special populations such as pregnant and elderly patients. The book gives specific prescribing recommendations--including dosage and how long to use--for individual drugs. Tables provide at-a-glance information and a disease-specific table of contents directs readers quickly to relevant drug chapters. This edition is available electronically for PDAs.