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Marrubium vulgare

Latin Name: Marrubium vulgare

Common name: White Horehound

Family: Labiatae

Parts used: Aerial (leaves and flowers)

Constituents: Volatile oil, alkaloids, flavonoids.

Medicinal actions: Expectorant, bitter tonic, diuretic, stomachic, vermifuge, diaphoretic, antispasmodic, astringent, cholagogue, vulnerary.

Medicinal use: Colds, bronchitis, asthma, catarrhal dyspepsia, coughs, liver and stomach disorders.


  • Flavonoids thin mucus secretions, reduce spasms in the stomach and intestines, and decrease swelling (inflammation).


  • Infusion: 1 tbsp herb per cup of water TID; if as a bitter tonic; 1/4 cup, TID.
  • Tincture: 1-2ml (1:5), TID.
  • Syrup: 1 tbsp as needed. 1oz herb in 1 pint water boiled for 20 minutes, press, strain, reduce liquid to 1 cup, add 2 cups honey and 1oz infusion of Althea, Symphytum, or Ulmus and 1/2 cup brandy or vodka

Toxicity: Hypertension may occur with extended use.

Contraindications: Avoid use in pregnancy, breastfeeding, heart conditions.

Interactions: None known.


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