Novel Psychoactive Substances: Classification, Pharmacology and Toxicology provides readers with background on the classification, detection, supply and availability of novel psychoactive substances, otherwise known as "legal highs." This book also covers individual classes of novel psychoactive substances that have recently emerged onto the recreational drug scene and provides an overview of the pharmacology of the substance followed by a discussion of the acute and chronic harm or toxicity associated with the substance. Written by international experts in the field, this multi-authored book is a valuable reference for scientists, clinicians, academics, regulatory and law enforcement professionals. Includes chapters written by international experts in the field. Provides a comprehensive look at the classification, detection, availability and supply of novel psychoactive substances, in addition to the pharmacology and toxicology associated with the substance. Offers a single source for all interested parties working in this area, including scientists, academics, clinicians, law enforcement and regulatory agencies. Provides a full treatment of novel psychoactive substances that have recently emerged onto the recreational drug scene including mephedrone and the synthetic cannabinoid receptors in 'spice' / 'K2'. Includes a companion website dedicated to updates and web links on new or modified novel psychoactive substances since this a fast-paced and quickly evolving area.