| Lobelia
inflata
Campanulaceae
Common name: Pukeweed, Indian tobacco.
Habitat: Eastern USA, cultivated
elsewhere.
Part used: Aerial parts.
Collection: The entire plant above
ground should be collected at the end of the flowering time,
between August and September. The seed pods should be collected
as well.
Constituents:
- Piperidine alkaloids, mainly lobeline,
withlobelanidine, lobelanine, and minor amounts of norlobelanine(=isolobelanine),
lelobanidine, lovinine, isolobinine, lobinanidine andothers
- Chelidonic acid
Actions: Anti-asthmatic, anti-spasmodic,
expectorant, emetic, nervine.
Indications: Lobelia is one of the
most useful systemic relaxants available to us. It has a
general depressant action on the central and autonomic nervous
system and on neuro-muscular action. It may be used in many
conditions in combination with other herbs to further their
effectiveness if relaxation is needed. Its primary specific
use is in bronchitic asthma and bronchitis.
An analysis of the action of the alkaloids present reveal
apparently paradoxical effects. Lobeline is a powerful respiratory
stimulant, whilst isolobelanine is an emetic and respiratory
relaxant, which will stimulate catarrhal secretion and expectoration
whilst relaxing the muscles of the respiratory system. The
overall action is a truly holistic combination of stimulation
and relaxation!
Priest & Priest tell us that
it is a "general systemic relaxant with diffusive stimulation
- best where arterial action is strong. Equalizes circulation
and relieves vascular tension. Vaso-motor stimulant -increases
the activity of vegetative processes. Influences glandular
system and respiratory tubuli. Contra-indicated
in nervous prostration, shock and paralysis. Of brief continuance
in asthenic conditions." They give the following specific
indications: Dislocations, trauma and hernias.
Spasmodic and membranous coup, pertussis,
bronchial asthma, bronchitis and pleurisy.
Hepatitis, jaundice, nausea and hepatic
congestion. High blood pressure, intestinal
obstruction and neurasthenia.
Ellingwood considered it specific
for "irritable, spasmodic and oppressed breathing, and in
respiratory from exalted nerve force and nerve irritation.
It is contra-indicated in general relaxation and in dyspnoea
from enlarged or fatty heart, or from hydropericardium,
or enfeebled heart, with valvular incompetence. It is specific
in threatened spasm with exalted nerve action - a high degree
of nerve tension with great restlessness and excitability,
flushed face and contracted pupils. It is a prompt emetic
in full doses." The high regard that the eclectics held
Lobelia in is reflected by his recommendation for
the following pathologies: spasmodic asthma, whooping
cough, spasmodic croup, membranous croup,
infantile convulsions, puerperal eclampsia,
epilepsy, tetanus, hysterical paroxysms,
hysterical convulsions, rigid os uteri, diptheria,
tonsillitis, pneumonia.
For a more detailed discussion of this
important plant please refer to pg. 235- pg. 242 of Ellingwood's
American Materia Medica, Therapeutics and Pharmacognosy,
and pg. 1199 - 1205 of King's American Dispensatory.
Combinations: It will combine well
with Cayenne, Grindelia, Pill-bearing Spurge, Sundew and
Ephedra in the treatment of asthma.
Preparation and dosage: Infusion:
pour a cup of boiling water onto l/4 to l/2 teaspoonful
of the dried leaves and let infuse for l0-l5 minutes. This
should be drunk three times a day. Tincture: take l/2 ml
of the tincture three times a day.
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