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Anti‐influenza agents from plants and traditional Chinese medicine

Influenza is a serious threat to health in all parts of the world. The control and treatment of influenza depends mainly on chemical or biochemical agents and, to date, some anti‐influenza agents have been isolated from plants as a result of chemical and pharmacological studies. These agents include a variety of polyphenols, flavonoids, saponins, glucosides and alkaloids. Traditional medicine focuses on the use of herbs and traditional Chinese medicine has performed well in clinical practice and shows a potential in the therapy of influenza and its symptoms. The present paper reviews some constituents and extracts from plants and traditional Chinese medicine with anti‐influenza activity. Copyright © 2006 John Wiley & Sons, Ltd.