An official website of the United States government.

The .gov means it?s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you?re on a .gov or .mil site by inspecting your browser?s address (or ?location?) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that?s been signed by the U.S. government. The https:// means all transmitted data is encrypted ? in other words, any information or browsing history that you provide is transmitted securely.

Dr. Duke's Phytochemical and Ethnobotanical Databases

U.S. Department of Agriculture

A Anticold PDF

Back to previous

Data Views

Plants (>= 1 Chemical): 628

All Chemicals: 3

CSV Excel PDF

Click on column headings to sort table by that column

Chemical	Dosage	References
ASCORBIC-ACID	1-2 g/man/day	*
PSEUDOEPHEDRINE	--	Martindale's 29th
ZINC	50 mg	Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.

^*Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.