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March 30, 2009

Glycyrrhiza glabra

Action: Demulcent, expectorant, laxative, anti-inflammatory, antispasmodic, alterative.

Systems Affected: Lungs, stomach, intestines, spleen, liver, kidneys, endocrine system, mucous membranes, general effects on the whole body.

Preparation and Dosage (thrice daily): Dried root (powdered form prepared by infusion; the whole root cut or bruised prepared by decoction), dose 1-4 grams.

Liquorice has been used medicinally since the time of the ancient Assyrians and Egyptians. Both its English name and botanical name are derived from the mediaeval gliquiricia which comes from the Greek glykos (sweet) and riza (root), the name given to it by Dioscorides in recognition of its extremely sweet taste.

The plant is native to southern Europe and Asia Minor. Several species and varieties exist and it is now extensively cultivated in temperate zones. It is official in most national pharmacopoeias. It is one of the most important herbs in Chinese medicine, frequently prescribed in many formulas for its synergizing effect on other herbs.

Liquorice contains substances similar to the adrenocortical hormones and for this reason is beneficial in treating adrenal insufficiency and other glandular problems. Large and frequent doses, however, will exacerbate high blood pressure. It also contains oestrogen-like compounds.

Liquorice is an excellent expectorant for treating coughs and bronchial congestion. It is a soothing and restorative remedy for sore throat and laryngitis, and it is a good mild laxative that can be given to children and those who are debilitated. Its anti-inflammatory action has been used to treat stomach and intestinal ulcers.

In preparing the root it is advisable to remove the bitter outer bark.

Liquorice is often added to herbal mixtures and pharmaceutical preparations to alleviate a bitter or unpleasant taste. It is used to flavour beers such as Guinness, and large quantities are employed in flavouring tobaccos (some contain 10% Liquorice) and confectionery.

Cautionary Notes: Liquorice should not be taken in large or frequent doses or over prolonged periods of time. Large doses may cause sodium retention and potassium loss, leading to high blood pressure, fluid retention, headache and shortness of breath. Those suffering from diabetes, hypertension and related cardiovascular disorders, fluid imbalance, bleeding ulcers, kidney disease or pregnancy disorders should not take Liquorice except under direct professional supervision.

*36/66/5*

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