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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.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Crocus sativus Saffron 4 0
Croton tiglium Purging Croton 4 286, 000
Cryptostegia grandifolia Rubber Vine 4 90, 925
Cryptotaenia japonica Japanese Cryptotaenia; Japanese Honewort; Mitsuba; Ya Er Qin; Stone Parsley 2 0
Cucumis melo Cantaloupe; Melon; Muskmelon; Netted Melon; Persian Melon; Nutmeg Melon 4 12, 336, 822
Cucumis sativus Cucumber 5 1, 753, 165
Cucurbita foetidissima Buffalo Gourd 4 467, 480
Cucurbita maxima Pumpkin 4 345, 625
Cucurbita pepo Pumpkin 6 608, 854
Cucurbita spp Summer Squash 5 14, 254
Cuminum cyminum Cumin 1 154, 000
Curcuma longa Turmeric; Indian Saffron 1 463, 600
Curcuma xanthorrhiza Javan Turmeric; Temu Lawak 1 20, 000
Curcuma zedoaria Shoti; Zedoary 1 2, 000
Cyamopsis tetragonoloba Guar; Cluster-Bean; Siam-Bean 4 2, 997, 000
Cydonia oblonga Quince 2 0
Cynara cardunculus Artichoke 4 5, 510
Cyperus rotundus Nutsedge 3 0
Cytisus scoparius Scotch Broom 1 30, 960
Datura metel Hindu Datura 1 73, 000