Synopsis

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

Coltsfoot (Tussilago farfara) has a long history of traditional use as a remedy for coughs, particularly spastic (or dry, irritating) coughs. The plant has been used in European and Asian herbal medicine for centuries, with references to its use dating back to ancient Greece and Rome. Traditionally, coltsfoot leaves and flowers were prepared as teas, syrups, or lozenges to soothe irritation in the throat and reduce coughing. The name “tussilago” itself is derived from the Latin word “tussis” meaning cough, highlighting its association with this use.

The rationale for its use is based on the presence of mucilage, which can coat and soothe irritated mucous membranes, as well as small amounts of alkaloids, flavonoids, and other compounds thought to exert mild anti-inflammatory and antitussive effects. However, modern scientific research on coltsfoot’s efficacy for spastic cough is limited and mostly consists of in vitro or animal studies, with a lack of robust clinical trials in humans. Additionally, concerns have arisen over the presence of hepatotoxic pyrrolizidine alkaloids in coltsfoot, leading to limited medical use and regulation in some countries. In summary, while there is strong traditional support for coltsfoot’s use in treating coughs, scientific evidence remains sparse, and safety concerns should be considered.

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