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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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Histamine-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
CAFFEIC-ACID *
CHLOROGENIC-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
Citrullus colocynthis Colocynth 2 0
Citrullus lanatus Watermelon 1 0
Citrus limon Lemon 1 35
Citrus paradisi Grapefruit 1 51
Citrus sinensis Orange 1 50
Clematis vitalba Traveler's Joy 2 0
Cnicus benedictus Blessed Thistle 1 0
Coccinia grandis Ivy Gourd; Kundree; Tindora; Tindori; Pepasan; Little Gourd; Kanduri 1 0
Coffea arabica Coffee 2 80, 000
Cola acuminata Abata Cola 1 0
Coleus barbatus Forskohl's Coleus 1 42.900001525878906
Conium maculatum Poison Hemlock; Hemlock; Spotted Hemlock; Fool's Parsley; Carrot Fern; Spotted Parsley 2 0
Convallaria majalis Lily-Of-The-Valley 2 0
Conyza canadensis Butterweed; Hogweed; Horseweed 1 0
Corchorus olitorius Jew's Mallow; Mulukiya; Nalta Jute 1 0
Coriandrum sativum Coriander; Chinese Parsley; Cilantro 2 3, 270
Corylus americana American Filbert; American Hazel 1 0
Crataegus cuneata Hawthorn 1 0
Crataegus laevigata Hawthorn; English Hawthorn; Whitethorn; Woodland Hawthorn 2 0
Crataegus monogyna Hawthorn; English Hawthorn 2 0