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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.
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Plant Name Common Name Chemical Count Total Parts Per Million
Carya ovata Shagbark Hickory 1 22, 500
Casimiroa edulis Matasano; White sapote 4 2, 790
Cassia grandis Pink Shower 1 0
Cassia marilandica Wild Senna 2 1
Cassia tora Sickle Senna 5 3, 180
Castanea dentata American Chestnut 1 1, 406
Castanea mollisima Chinese Chestnut 1 1, 531
Castanea sativa European Chestnut 2 704
Catalpa bignonioides Indian bean 1 0
Catalpa ovata Hsin-Pa-Pi; Kisasage 1 3, 920
Catha edulis Khat 1 1, 610
Catharanthus lanceus Lanceleaf Periwinkle 1 50, 000
Catharanthus roseus Madagascar Periwinkle; Rosy Periwinkle 2 0
Caulophyllum thalictroides Blue Cohosh 3 1, 351.5
Ceiba pentandra Kapok; Silk-Cotton Tree 2 0
Celosia cristata Cockscomb 1 6, 080
Centaurea cyanus Cornflower; Bachelor's Button 3 0
Centaurium erythraea Centaury 1 0
Centella asiatica Gotu Kola; Pennywort 3 7, 424
Centrosema pascuorum 1 0