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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=57 uM gpg *
SAFROLE IC50=58 uM *
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
Spondias pinnata Yellow Mombin; Yellow Plum 1 4, 330
Spondias purpurea Purple Jobo; Purple Plum 1 4, 050
Spondias tuberosa Imbu; Umbu 1 180
Stachys officinalis Betony; Wood Betony; Bishop's-Wort; Purple Betony 5 24, 432
Stachytarpheta cayennensis Verbena 1 0
Stauracanthus boivinii 1 0
Stauracanthus genistoides 1 0
Stellaria media Chickweed; Common Chickweed 5 10, 718
Stephania glabra Indian Tape-Vine 2 0
Stephania tetrandra Stephania 3 0
Stevia rebaudiana Ca-A-E; Sweet Leaf of Paraguay; Stevia 4 20, 835
Stizolobium deeringianum 1 0
Strongylodon macrobotrys 1 8
Symphoricarpos orbiculatus Buckbush 1 8, 800
Symphytum officinale Comfrey 4 8, 332
Syringa vulgaris Lilac 1 1, 315
Syzygium aromaticum Clove; Clovetree 8 3, 581, 634
Syzygium cumini Aceituna Dulce; Jambolan; Java Plum 2 10, 425
Syzygium jambos Pomarrosa; Rose Apple 2 5, 290
Syzygium malaccense Malay Apple; Mammey Pomorrosa; Ohia 1 13, 845