Horehound
Marrubium vulgare
Horehound is a traditional bitter herb used most often for coughs, throat irritation, and respiratory support.
Primary Use
Supports productive cough relief
Common Forms
Tea, Syrup
Typical Dose
1-2 tsp dried herb
Time to Effect
2-4 weeks
Overview
Horehound has been used for centuries in European and North American herbal traditions, especially in lozenges, syrups, and candies for cough relief. Its distinctly bitter taste reflects its long secondary use as a digestive stimulant as well.
Today it is most commonly used for mild coughs with thick mucus, throat irritation, and seasonal respiratory discomfort. It is a traditional herb with a strong historical reputation, though modern clinical research is limited.
How It Works
Horehound contains bitter compounds such as marrubiin that may help stimulate secretions and support expectoration. In plain terms, it may help loosen mucus and make coughs more productive.
Its bitterness can also stimulate digestive juices, which is why it has a dual respiratory and digestive reputation. Most people use it short-term during respiratory discomfort.
What It's Used For
Supports productive cough relief
Horehound is traditionally used when coughs feel heavy, sticky, or mucus-laden. It may help thin secretions and support easier clearing.
Soothes throat irritation
Lozenges and syrups containing horehound are popular for scratchy throats. Relief is usually mild but practical for short-term use.
Supports respiratory comfort
Traditional use includes seasonal congestion and bronchial irritation. Modern evidence is modest but the historical use is strong.
Stimulates digestion
Its bitter profile may encourage digestive secretions and appetite. This is a classic old-world use of the herb.
Dots indicate strength of research evidence (5 = strongest)
Disclaimer: This information is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before starting any new supplement, especially if you have a medical condition or take medications.
Last updated: March 2026