Finding information on herbal therapy: a guide to useful sources for clinicians.

Many resources are available to patients and healthcare practitioners interested in learning about complementary and alternative medicine (CAM) therapies such as herbal medicine. This article provides a comprehensive review of herbal medicine sources that are general in scope, clinically oriented, evidence based, and focused on Western phytomedicinals. Tables list 15 books and 8 Internet sites that fulfill these criteria. Information also is provided on 4 monographs, literature databases, and many related sources that may be of interest to clinicians incorporating herbal medicines into their practice or counseling patients on the topic.