This document discusses herbal therapy in veterinary medicine. It defines alternative and complementary medicine and lists several types including acupuncture, chiropractic, physical therapy, homeopathy, botanical medicine, and holistic veterinary medicine. Several popular herbal supplements used in veterinary medicine are described such as ginkgo, St. John's wort, ginseng, garlic, echinacea, saw palmetto, evening primrose, goldenseal, cranberry, and valerian. The document outlines factors affecting herb quality and forms. It provides general guidelines for herbal use in animals including using standardized products and avoiding herbs with known toxicities.