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, and regulatory and law enforcement professionals.