This volume provides reviews and details of the quality, safety and efficacy for some of the top-selling botanicals worldwide, including black cohosh, chamomile, comfrey, echinacea, garlic, ginkgo, ginseng, kava, milk thistle, St John's wort and valerian. The work was written based on a systematic review of the scientific literature from 1975-2000.;Each review includes a brief introduction, a section on quality including a definition of the crude drug, geographical distribution, and a listing of the major chemical constituents. The safety and efficacy sections summarize the medical uses, pharmacology, contraindications, warnings, precautions, adverse reactions, dose and dosage forms. The safety and efficacy sections were written for a busy health-care professional, and should enable one to ascertain which clinical uses are supported by clinical data, without having to read through all the pharmacology. Each chapter is fully referenced, enabling the reader to access further information when necessary.