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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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5-Alpha-Reductase-Inhibitor

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
ALIZARIN *
ALPHA-LINOLENIC-ACID *
ARACHIDONIC-ACID *
ARTOCARPIN IC50=85 uM *
BIOCHANIN-A IC50=35 uM *
BIOCHANIN-A IC>80=100 uM *
CURCUMIN *
LINOLEIC-ACID *
OLEIC-ACID *
PALMITIC-ACID *
PALMITOLEIC-ACID *
STEARIC-ACID *
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List of Activity Plants.
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Plant Name Common Name Chemical Count Total Parts Per Million
Vanilla planifolia Vanilla; Bourbon Vanilla 4 890
Verbascum thapsus Mullein; Velvetplant; Flannelleaf; Flannelplant; Great Mullein 4 11, 838, 000
Vernonia cinerea Purple fleabane 3 114, 000
Vetiveria zizanioides Cus-Cus; Vetiver; Cuscus Grass 1 0
Viburnum opulus Crampbark; European Cranberry Bush; Guelder Rose; Snowballbush 3 0
Viburnum prunifolium Black Haw 3 0
Vicia faba Broadbean; Faba Bean; Habas 5 43, 425
Vigna aconitifolia Mat Bean; Moth Bean 5 27, 524
Vigna angularis Adzuki Bean 2 1, 143
Vigna mungo Black Gram 4 13, 875
Vigna radiata Green Gram; Mungbean 6 49, 894
Vigna unguiculata Cowpea; Black-eyed Pea; Crowder Pea; Southern Pea 6 295, 406
Viola odorata Common Violet; Sweet Violet 1 0
Virola surinamensis Ucahuba; Ucuuba 3 233, 880
Viscum album European Mistletoe 1 0
Vitellaria paradoxa Butterseed; Shea Nut; Shea-Butter-Tree; Sheatree; Shea 5 7, 668, 350
Vitex agnus-castus Chaste-Tree 1 0
Vitis vinifera Grape; European Grape; Wine Grape; Grapevine; Vigne Vinifere (Fr.); Weinrebe (Ger.); Parra (Sp.); Vid (Sp.) 5 1, 744, 072
Withania somnifera Ashwagandha 2 600, 000
Zea mays Corn 6 45, 219