An enormous increase in the knowledge of herbal drug constituents, their effects, and side effects has occurred in recent years. As a result, many herbal products are undergoing a transition from classic herbal teas to standardized extracts. This new edition of Herbal Drugs and Phytopharmaceuticals takes the advances made in medicinal plants research and phytotherapy into account and offers reliable, highly pertinent information. This reference offers comprehensive information about the origins, constituents, effects, indications, and dosage of herbal drugs and phytopharmaceuticals. The text also includes phytopharmaceutical information such as types of extraction solvents, drug-to-extract ratios, and dosage recommendations for extracts.