licorice flower


Glycyrrhiza glabra – root

Liquorice is a demulcent that soothes mucous membranes relieving the common twin symptoms of sore throats and coughs, especially those dry and irritating coughs that can keep people up all night. It is also commonly used to soothe the digestive tract including symptoms of irritable bowel syndrome and digestive ulcers.

It is an adaptogen for people with adrenal insufficiency who have symptoms of fatigue, tiredness upon waking up in the morning, elevated cortisol and blood sugar levels, weak immunity.


Primary: anti-inflammatory, mucoprotective, adrenal tonic.

Secondary: expectorant, demulcent, eases cough, laxative (mild), antiviral, hepatoprotective.


  • Short-term relief of indigestion.
  • Supports healthy adrenal function.
  • To support urinary tract inflammation.
  • Relief of bronchitis and coughs.
  • Topically to relieve sore throat.
  • Add to formulations as a flavouring and to promote the harmonious activity of other herbs.
  • Assessment of the patient’s blood pressure and other medications is required before prescribing licorice.
  • Exercise care with elderly patients.
  • Patients who are prescribed licorice that is high in glycyrrhizin other than for short periods should be placed on a high potassium and low sodium diet, and should be closely monitored for blood pressure increases and weight gain.
  • High doses should not be taken for prolonged periods.
  • Advise patients: If pain or irritation associated with cystitis persists for more than 48 hours, consult your doctor.
  • The presence of blood in the urine warrants immediate medical attention.
  • Caution in pregnancy at doses greater than 3 mL/day of Licorice 1:1.  At doses lower than this Licorice liquid extracts are safe to use under professional supervision for short periods. Not advisable in women with or prone to hypertension during pregnancy.

The analysis of contents below is a guide only, product specific data including expiry date is with the item in the shop.

Glycyrrhiza glabra 1:1. Each 1 ml contains 1,000mg of dry herb.

Liquid extract in 20% ethanol. Use 10 to 30 ml weekly.

Our clinic uses fluid extracts from Optimal Rx, Herbal Extract Company, Nutrition Care, Mediherb or Sunray Botanicals, in this order.

Excessive or prolonged ingestion has resulted in symptoms of an apparent “mineralocorticoid excess syndrome” typical of primary hyperaldosteronism, namely hypertension, sodium, chloride and water retention, hypokalaemia and weight gain. Also causing low levels of plasma renin activity, aldosterone and antidiuretic hormone. This can be abated after cessation of intake plus adequate potassium replacement.