St. John's Wort has been shown to have some anti-depressant activity. This plant may cause photo-toxic reactions. Milk thistle is used frequently in Germany to protect the liver from toxins such as poison mushrooms. It may be effective for other toxins such as alcohol. A member of the solanum, or eggplant family, it is used to treat sinus infections in a number of creative ways.
Eggplant extract is used to treat various skin cancers in several countries.
The American Botanical Council is an objective organization which studies the uses of plant medicines. They are based in Austin, Texas, and publish a quarterly journal, HerbalGram. This journal contains no product advertising and endorses no specific products. These books are available through the American Botanical Councils' bookstore. The American Botanical Council is located at P.O. Box 201660, Austin, TX 78720.