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Marrubium vulgare
Ancient Mediterranean herb mentioned in Egyptian papyri used for respiratory conditions, digestive complaints, and liver disease. One of the bitter herbs of Passover.
Horehound (Marrubium vulgare) is a bitter Mediterranean herb historically used for respiratory and digestive ailments, including as one of the traditional Passover herbs. Its primary active compound, marrubiin, along with marrubenol and premarrubiin, contributes to its expectorant, choleretic, and antiarrhythmic properties. Modern evidence supports its use as a digestive bitter and expectorant, though caution is warranted due to potential cardiac effects and uterine stimulation.
Marrubiin, a diterpene lactone, stimulates bitter taste receptors (TAS2Rs) in the oral cavity and gastrointestinal tract, leading to increased gastric acid secretion, bile flow, and digestive enzyme release via vagal reflexes. Its expectorant action is mediated by increased respiratory tract fluid secretion and mucociliary clearance. Antiarrhythmic effects may involve modulation of cardiac sodium and potassium channels, though high doses can provoke arrhythmias. Additionally, marrubiin exhibits hypoglycemic activity by enhancing insulin sensitivity and glucose uptake in peripheral tissues.
Ancient Mediterranean herb mentioned in Egyptian papyri used for respiratory conditions, digestive complaints, and liver disease. One of the bitter herbs of Passover.
Horehound (Marrubium vulgare) is a bitter Mediterranean herb historically used for respiratory and digestive ailments, including as one of the traditional Passover herbs. Its primary active compound, marrubiin, along with marrubenol and premarrubiin, contributes to its expectorant, choleretic, and antiarrhythmic properties. Modern evidence supports its use as a digestive bitter and expectorant, though caution is warranted due to potential cardiac effects and uterine stimulation.
Marrubiin, a diterpene lactone, stimulates bitter taste receptors (TAS2Rs) in the oral cavity and gastrointestinal tract, leading to increased gastric acid secretion, bile flow, and digestive enzyme release via vagal reflexes. Its expectorant action is mediated by increased respiratory tract fluid secretion and mucociliary clearance. Antiarrhythmic effects may involve modulation of cardiac sodium and potassium channels, though high doses can provoke arrhythmias. Additionally, marrubiin exhibits hypoglycemic activity by enhancing insulin sensitivity and glucose uptake in peripheral tissues.