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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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Calcium-Antagonist

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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
REPANDULINE IC50=2.3 uM pig *
RESERPINE 1 uM rbt, rat, gpg *
RHEIN 9/10 aloeemodin *
RHYNCHOPHYLLINE 10.1 uM rat *
ROSMARINIC-ACID IC50=1.2 uM rbt *
ROSMARINIC-ACID-MONOMETHYL-ESTER IC50=1.2 uM rbt *
RYANODINE 10 uM rbt *
RYANODINE IC50=45 uM *
S-(-)-N-(14-METHYL-3-(13-METHYL-TETRADEC-CIS-4-ENOYL-OXY)-PENTADECANOYL)-GLYCINE IC50=10.9 uM *
SAFROLE IC50=58 uM *
SAFROLE IC50=57 uM gpg *
SANGUINARINE IC50=15 uM gpg *
SANTONIN IC50=876 uM gpg (weak activity) *
SCHIZOTENUIN-A IC50=1.2 uM rbt *
SCYTONEMIN-A 5 ug/ml *
SOLANINE mus *
SOYASAPONIN-A-1 2 ug/ml rat *
SOYASAPONIN-A-2 2 ug/ml rat *
STREPTOTHRICIN-B IC50=0.071 uM *
STREPTOTHRICIN-F IC50=50 uM (weak activity) *
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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
Tulipa gesneriana Tulip 1 0
Turnera diffusa Damiana 2 3, 023
Tussilago farfara Coltsfoot 3 3, 955
Ulex micranthus 1 0
Ulex sp 1 0
Ullucus tuberosus Melloco; Ulluco 1 3, 500
Ulmus rubra Slippery Elm; Red Elm 2 1, 160
Umbellularia californica California Bay 2 80
Uncaria guianensis Cat's Claw; Una de Gato; Garabato Colorado; Tambor Huasca; Ungunagi 4 0
Uncaria tomentosa Cat's Claw; Garabato Amarillo; Una de Gato 6 196, 530
Urtica dioica European Nettle; Stinging Nettle 4 23, 260
Vaccinium corymbosum Blueberry 7 1, 210.039999999106
Vaccinium macrocarpon Cranberry; Large Cranberry; American Cranberry 4 9, 600
Vaccinium myrtillus Bilberry; Whortleberry; Dwarf Bilberry 5 16, 770.05999999866
Vaccinium vitis-idaea Cowberry; Lingen; Lingonberry 4 7, 395
Valeriana officinalis Valerian; Common Valerian; Garden-Heliotrope 4 26, 940
Valerianella locusta Corn Salad; Lamb's Lettuce 1 7, 596
Valerianella radicata 1 3, 226
Vandasina retusa 1 7
Vanilla planifolia Vanilla; Bourbon Vanilla 1 0