An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Biological Activity Cold-preventive

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
ASCORBIC-ACID 1-2 g/day Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Casimiroa edulis Matasano; White sapote 1 2, 790
Catha edulis Khat 1 1, 610
Caulophyllum thalictroides Blue Cohosh 1 51.5
Centella asiatica Gotu Kola; Pennywort 1 1, 024
Cephaelis ipecacuanha Ipecac; Raicilla 1 0
Chamaemelum nobile Garden Camomile; Perennial Camomile; Roman Camomile 1 801
Chenopodium album Lambsquarter 1 9, 000
Chenopodium ambrosioides Epazote; Wormseed 1 2, 040
Chondrus crispus Irish Moss 1 130
Chrysanthemum coronarium Garland Chrysanthemum 1 9, 130
Chrysanthemum parthenium Feverfew 1 660
Chrysobalanus icaco Cocoa plum; Icaco 1 2, 840
Chrysophyllum cainito Caimito; Star Apple 1 1, 280
Cicer arietinum Chickpea; Garbanzo 1 112
Cichorium endivia Endive; Escarole 1 18, 604
Cichorium intybus Chicory; Witloof; Succory 1 6, 870
Cimicifuga racemosa Black Cohosh; Black Snakeroot 1 270
Cinnamomum aromaticum Cassia; Cassia Bark; Cassia Lignea; Chinese Cassia; Chinese Cinnamon; China Junk Cassia; Saigon Cinnamon; Zimtcassie (Ger.); Canela de la China (Sp.); Canelero chino (Sp.); Chinazimt (Ger.); Chinesischer Zimtbaum (Ger.); Kashia-Keihi (Jap.); Canelle de Cochinchine (Fr.); Cannelier Casse (Fr.); Cannelier de Chine (Fr.) 1 4, 944
Cinnamomum verum Cinnamon; Ceylon Cinnamon 1 618
Citrullus colocynthis Colocynth 1 122