The history of herbal medicines is as old as human civilization. For the sustenance and survival, man has to depend on nature. To keep himself healthy he has to use medicinal plants. Nature, by its very design, provides a remedy for nearly any disease that may afflict a human being. In the past, almost all the medicines were from the plants, the plant being man’s only chemist for ages. Since the beginning of humankind people have relied primarily on plants for ...