Intended for students working on a class assignment, this reference summarizes information about the history and use of 50 illegal drugs, legal addictive drugs, and commonly abused classes of prescription drugs. Each entry lists the official and street names of the drug, along with its classification, origin, chemical composition, ingestion methods, therapeutic use, usage trends, mental effects, physiological effects, reactions with other drugs, treatment options, and consequences. The contributors are primarily medical writers, and the level is appropriate for both high school and college libraries. A few b&w photographs are provided.