Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Coltsfoot (Tussilago farfara) has a long history of traditional use in supporting the bronchial and respiratory systems. In European and Asian herbal medicine, the leaves and flowers of coltsfoot have been employed for centuries as remedies for coughs, bronchitis, and other respiratory ailments. The plant’s Latin name, “tussilago,” reflects its reputation in “tussis” (cough) relief. Traditional preparations include teas, syrups, and lozenges, often used to soothe irritation in the throat and bronchial passages and to suppress coughs.

Phytochemically, coltsfoot contains mucilage, which may help to coat mucous membranes and ease irritation, as well as small amounts of alkaloids and flavonoids. However, the scientific evidence supporting its effectiveness in respiratory health remains limited. Most available studies are either in vitro or based on animal models, with very few clinical trials in humans. Additionally, there are safety concerns regarding the presence of pyrrolizidine alkaloids (PAs) in coltsfoot, which are potentially hepatotoxic and carcinogenic. Because of this, many health authorities caution against its internal use, especially for prolonged periods or in vulnerable populations.

In summary, coltsfoot’s use for bronchial support is justified primarily by longstanding traditional practices rather than robust modern scientific evidence. While it remains a component of some herbal cough remedies, safety concerns and lack of high-quality clinical data limit its recommendation in evidence-based medicine.

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