Horehound (Not traditionally recognized in Ayurveda (Marrubium vulgare))
Horehound (Marrubium vulgare), also known as White Horehound, is a perennial herb native to Europe, North Africa, and Asia. It is primarily rooted in European and Mediterranean herbal medicine, where it has been traditionally used for respiratory, dige...
Botanical name: Marrubium vulgare.
Classical attributes
- Virya: []
- Vipaka: []
Dosha effects
- vata: unknown
- kapha: unknown
- pitta: unknown
Clinical evidence
Despite extensive traditional use, large-scale, placebo-controlled human clinical trials on Horehound (Marrubium vulgare) alone are relatively limited. However, a body of *in vitro* and animal studies, complemented by some small human studies and observational data, supports its potential in several areas. For respiratory conditions, traditional use as an expectorant and antitussive is supported by *in vitro* and animal studies demonstrating bronchodilatory effects and increased bronchial secretions, likely mediated by marrubiin's vagal nerve stimulation. Efficacy for cough is also reported in multi-herbal preparations containing horehound, though specific attribution is difficult. For diabetes, small human studies and observational data suggest that horehound extracts may help lower blood glucose levels and improve glucose tolerance in type 2 diabetic patients, a finding corroborated by strong mechanistic data from animal studies. Anti-inflammatory and antioxidant properties have been demonstrated in *in vitro* and animal models, attributed to its phenolic compounds, flavonoids, and diterpenoids. Its traditional role as a bitter tonic for dyspepsia and appetite stimulation is mechanistically supported by its bitter compounds stimulating digestive secretions.