PDR for Herbal Medicines

(Barré) #1
HERBAL MONOGRAPHS AMERICAN HELLEBORE /25

INDICATIONS AND USAGE
Unproven Uses: The drug has been used for rheumatism,
menstrual disorders and liver disorders, but is rarely used
today.
PRECAUTIONS AND ADVERSE REACTIONS
No health hazards or side effects are known in conjunction
with the proper administration of designated therapeutic
dosages.
DOSAGE
No information is available.
LITERATURE
Hegnauer R. Chemotaxonomie der Pflanzen. Bde 1-11,
Birkhauser Verlag Basel, Boston, Berlin 1962-1997.
Kern W, List PH, Horhammer L (Hrsg.), Hagers Handbuch der
Pharmazeutischen Praxis, 4. Aufl., Bde. 1-8, Springer Verlag
Berlin, Heidelberg, New York, 1969.

American Hellebore
Veratrum viride
** DESCRIPTION
Medicinal Parts: The medicinal parts are the dried rhizome
and the roots.
Flower and Fruit: The terminal inflorescence is a panicle
made up of spike-like racemes. The flowers are short-
pedicled and often unisexual. The perigone has 6 tepals and
is almost free. The anther is reniform. The fruit is capsule-
like with numerous seeds and dividing membranes. The
seeds are flattened, light-brown and winged all around. The
embryo is small and set in the tip of the fusiform endosperm.
Leaves, Stem and Root: The species are perennial herbs with
strong leafy stems. The leaves are spiralled, broadly elliptical
to linear-lanceolate, heavily ribbed and drawn together in a
broad sheath. The leaves of Veratrum viride are oval to
linear.
Characteristics: Characteristics of the species Veratrum
viride is very similar to Veratrum album.
Habitat: The herb is indigenous to the swamps and moist
0> ground from Canada to Georgia and westward to Minnesota.


Production: American Hellebore root is the rhizome of
Veratrum viride.
Not to be Confused With: The rhizome from Symplocarpus
foetidus is thicker than that of Veratrum viride and more
porous.
Other Names: Bugbane, Devil's Bite, Earth Gall, Indian
Poke, Itchweed, Tickleweed

ACTIONS AND PHARMACOLOGY
COMPOUNDS
Steroid alkaloids {!%): including among others, some of the
solanidane-type, isorubijervine, rubijervine- C-nor-D-homo-
sterane-type: including among others, protoverine, protover-
atrine A and B. In contrast with Veratrum album, the less
toxic alkaloids of the solanidane-type are here in the
majority.

EFFECTS
The herb reduces blood pressure and slows down the pulse
due to the alkaloid germitrin. When used externally, it is
hyperemic, hyperalgic, and locally anaesthetic. The drug is
extremely toxic.

INDICATIONS AND USAGE
Unproven Uses: The drug is obsolete due to the high risk of
side effects. Historically, American Hellebore was used
internally to treat pneumonia, peritonitis, epilepsy, pain.
asthma, colds, cholera, croup, consumption, dyspepsia, fever.
hypertension, herpes, gout, headache, inflammation, neural-
gia, whooping cough, puerperal fever, scarlet fever, sciatica.
rheumatism, shingles, toothache, scrofulous, tumors, and
typhus. It was used externally for throat infections and
tonsillitis (as a gargle solution), neuralgia, and skin
irritations.

PRECAUTIONS AND ADVERSE REACTIONS
The drug is severely toxic and has numerous severe side
effects, even in therapeutic dosages. It is no longer adminis-
tered in allopathic medicine. The alkaloids are severely
mucous membrane-irritating, and because they inhibit inacti-
vation of the sodium ion channels after resorption, the
alkaloids have a paralyzing effect on numerous excitable
cells, in particular those governing cardiac activity.
OVERDOSAGE
The first symptoms of poisoning are sneezing, lacrimation,
salivation, vomiting, diarrhea, burning sensation in the
mouth and pharyngeal space, and inability to swallow; then,
following resorption: paresthesia, vertigo, possible blindness,
paralysis of the limbs; also mild convulsions, lowering of
cardiac frequency, cardiac arrhythmias and hypotension.
Death occurs either through systolic cardiac arrest or through
asphyxiation. The alkaloids can also be absorbed through
uninjured skin.

Following gastrointestinal emptying (inducement of vomit-
ing, gastric lavage with burgundy-colored potassium per-
manganate solution, sodium sulphate), installation of
activated charcoal and shock prophylaxis (appropriate body
position, quiet, warmth), the therapy for poisoning consists
of treating spasms with diazepam or certain barbiturates
(i.v.), bradycardia with atropine and hypotension wim
peripherally active circulatory medications. Electrolyte sub-
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