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Dong Quai Root
Dong Quai consists of the dried roots of angelica sinensis (Oliv.) Diels [Fam. Apiaceae].
Principal constituents of the roots are ferulic acid and ligustilide.
Herb contains a significant quantity of vitamin B12 and vitamin E.
Common names: Dang gui, Tang Kuei, Chinese angelica root.
Daily doses: 4.5g. to 12g. tinctured, in extracts, pills, and powders.
Dysmenorrhea: One tablet (0.5g. of extract) twice daily, or capsules equal to 4.5g to 9g. of the dried root.