Access to accurate, evidence-based, and clinically relevant information is essential to anyone who uses or recommends herbs or herbal products. With input from some of the most respected experts in herbal and integrative medicine, this completely revised edition of the American Herbal Products Association's Botanical Safety Handbook reviews both traditional knowledge and contemporary research on herbs to provide an authoritative resource on botanical safety. The book covers more than 500 species of herbs and uses an easily understood classification system to indicate the safety of each listed species and the potential for drug interactions.