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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
Raphanus sativus Radish 4 12, 015
Rheum officinale Chinese Rhubarb 2 0
Rheum palmatum Chinese Rhubarb 1 0
Rhus toxicodendron Poison Ivy 3 0
Ribes nigrum Black Currant 6 704, 902
Ribes rubrum Red Currant; White Currant 6 16, 196
Ribes uva-crispa Gooseberry 5 32, 974
Ricinus communis Castorbean 3 0
Robinia pseudoacacia Black Locust 4 112, 980
Rosa canina Rose; Dogbrier; Dog Rose 4 174, 960
Rosa rubiginosa Rosa Mosqueta 4 0
Rosmarinus officinalis Rosemary 5 114, 455
Rubia cordifolia Madder 1 0
Rubus idaeus Red Raspberry; Raspberry 4 42, 320
Rumex acetosa Garden Sorrel 1 4, 350
Ruta graveolens Rue 4 0
Salvia officinalis Sage 4 108, 500
Salvia sclarea Clary Sage 4 153, 481
Salvia sp. Chia 4 339, 840
Sambucus canadensis American Elder; Elderberry; American Elderberry; Sweet Elder 4 839, 680