Eastern Teaberry (Gaultheria procumbens LINN.) Click on graphic for larger image

Wintergreen

Botanical: Gaultheria procumbens (LINN.)
Family: N.O. Ericaceae

• Description
• Constituents
• Medicinal Action and Uses
• Dosage
• Other Species

---Constituents---The volatile oil obtained by distillation and to which all the medicinal qualities are due, contains 99 per cent Methyl Salicylate: other properties are 0.3 of a hydrocarbon, Gaultherilene, and an aldehyde or ketone, a secondary alcohol and an ester. To the alcohol and ester are due the characteristic odour of the oil. The oil does not occur crudely in the plant, but as a nonodorous glucoside, and before distillation, the leaves have to be steeped for twelve to twenty-four hours for the oil to develop by fermentation - a reaction between water and a neutral principle: Gaultherin.

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---Medicinal Action and Uses---Tonic, stimulant, astringent, aromatic. Useful as a diuretic and emmenagogue and for chronic mucous discharges. Is said to be a good galactogogue. The oil of Gaultheria is its most important product. It has all the properties of the salicylates and therefore is most beneficial in acute rheumatism, but must be given internally in capsules, owing to its pungency, death from inflammation of the stomach having been known to result from frequent and large doses of it. It is readily absorbed by the skin, but is liable to give rise to an eruption, so it is advisable to use for external application the synthetic oil of Wintergreen, Methyl Salicylate, or oil from the bark of Betula lenta, which is almost identical with oil of Gaultheria. In this form, it is a very valuable external application for rheumatic affections in all chronic forms of joint and muscular troubles, lumbago, sciatica, etc. The leaves have found use as a substitute for tea and as a flavouring for genuine tea. The berries form a winter food for animals, partridges, deer, etc. They have been used, steeped in brandy, to produce a bitter tonic taken in small quantities. The oil is a flavouring agent for tooth powders, liquid dentifrices, pastes, etc., especially if combined with menthol and eucalyptus.

---Dosage---Capsules of oil of Gaultheris, 10 minims in each, 1, three times daily.

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---Other Species---
Gaultheria hispidula, or Cancer Wintergreen, supposed to remove the cancerous taint from the system. Is also used for scrofula and prolapsus of the womb.

G. Shallon is the Sallol of North-west America, whose edible fruit deserves to be more widely known and cultivated.

Pyrola rotundifolia, known as False Wintergreen or British Wintergreen, was formerly considered a vulnerary.

With Chimophila umbellata, the Bitter Wintergreen, Rheumatism Weed or Pipsissewa, C. maculata, the Spotted Wintergreen was used internally by North American Indians for rheumatism and scrofula. For its diuretic action it is occasionally prescribed, in fluid extract, for cystitis and considered useful in disordered digestion.

Trientalis Europaea, the Chickweed Wintergreen, a British plant, was formerly esteemed in ointment as a wound salve, and an infusion taken internally for blood poisoning or eczema. The root is emetic.

See PYROLA.

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