Coltsfoot
Tussilago farfara
Coltsfoot is a traditional soothing respiratory herb historically used for cough and throat irritation, but safety concerns limit its use today.
Primary Use
Soothing dry cough
Common Forms
Tea, Tincture
Typical Dose
1-2 g dried leaf or flower
Time to Effect
2-4 weeks
Overview
Coltsfoot has a long reputation in European and traditional herbal medicine as a classic herb for cough, throat irritation, and inflamed airways. Its very name reflects that historical use, and it was once a common ingredient in teas, lozenges, and smoking mixtures for respiratory complaints.
However, modern use is much more cautious because coltsfoot may contain pyrrolizidine alkaloids, compounds associated with liver toxicity. PA-free products exist, but product quality matters greatly. For that reason, coltsfoot is now often considered more of a historical herb or specialist herb rather than a routine household remedy.
How It Works
Coltsfoot contains mucilage and other soothing constituents that can coat irritated mucous membranes in the throat and upper airways. It also contains compounds that may have mild anti-inflammatory activity, which helps explain its historical use for dry, irritating coughs.
The problem is that naturally occurring pyrrolizidine alkaloids can pose liver risk. So while the soothing respiratory logic is understandable, modern use must focus on verified PA-free products and short-term use only.
What It's Used For
Soothing dry cough
Coltsfoot has been traditionally used for dry, irritated cough and throat discomfort. This use is historically strong, but modern safety concerns reduce routine recommendation.
Mucous membrane support
Its mucilage content may help coat and calm irritated tissues in the throat. Evidence is mostly traditional and mechanistic rather than clinical.
Respiratory comfort
Some traditional formulas included coltsfoot for bronchial irritation and hoarseness. Safer alternatives are often preferred today unless the product is certified PA-free.
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