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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
Pinus sylvestris Scotch Pine 2 0
Piper nigrum Black Pepper; Pepper; White Pepper 1 18
Pisum sativum Pea 1 0
Plantago major Common Plantain 2 0
Pluchea carolinensis Pito sico; Santa maria 1 0
Polypodium vulgare Common Polypody; Sweet Fern 1 0
Populus balsamifera Balsam Poplar 1 0
Portulaca oleracea Purslane; Verdolaga 1 0
Prunus armeniaca Apricot 2 0
Prunus cerasus Sour Cherry 2 0
Prunus domestica Plum 2 0
Prunus dulcis Almond 1 0
Prunus laurocerasus Cherry Laurel 1 0
Prunus persica Peach 2 0
Prunus serotina Black Cherry; Wild Cherry 1 0
Prunus spinosa Blackthorn; Sloe 1 0
Pteridium aquilinum Bracken; Bracken Fern 1 0
Punica granatum Pomegranate; Grenadier (Fr.); Granatapfelbaum (Ger.); Granatapfelstrauch (Ger.); Zakuro (Jap.); Romanzeiro (Port.); Granado (Sp.); Mangrano (Sp.) 2 0
Pyrus communis Pear 1 19, 700
Raphanus sativus Radish 1 91