Dominican Medicinal Plants: A Guide for Health Care Providers

Activity/Effect Preparation Design & Model Results Reference
Sedative &
anticonvulsant
Thiaminase
Vasorelaxant
REFERENCES
Hydroalcoholic
extract of E.
arvense; doses of
200 & 400 mg/kg
Equisetum
ramosissimum
Caffeic acid
derivative
dicaffeoyl-mesotartaric
acid
In vivo: rats in openfield
& barbiturateinduced
sleeping
time tests; response
to experimentallyinduced
seizures
In vitro
In vitro: isolated rat
aorta strips
Showed sedative &
anticonvulsant effects;
increased sleeping time
(46% & 74%); reduced
incidence & severity of
convulsions & protected
against death
Showed strong thiaminase
type 1& 2 activities & low
thiamine content
Showed relaxation against
norepinephrine (NE)-
induced contraction of rat
aorta; inhibited NE-induced
vasoconstriction in the
presence of nicardipine;
mechanism involves
decrease in calcium influx
Dos Santos et al.
2005
Meyer 1989
Sakurai et al.
2003
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