Evidence supporting the use of: Coltsfoot
For the health condition: Wheezing

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Synopsis

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

Coltsfoot (Tussilago farfara) has a long history of traditional use for respiratory ailments, including wheezing, coughs, and bronchitis. The plant’s leaves and flowers have been used in European and Asian herbal medicine for centuries, often as teas, syrups, or lozenges. The name “tussilago” itself is derived from the Latin word for cough (“tussis”), reflecting its historical reputation as a remedy for various respiratory complaints.

Traditional herbalists valued coltsfoot for its demulcent and expectorant properties, believing it could soothe irritated airways and help clear mucus, making it a popular remedy for wheezing associated with colds, asthma, or bronchitis. However, while some laboratory studies have identified anti-inflammatory and antitussive compounds in coltsfoot, robust clinical evidence supporting its efficacy in treating wheezing or underlying respiratory conditions is lacking. Most available data are anecdotal or based on traditional use rather than well-controlled human trials.

Additionally, safety concerns exist: coltsfoot contains pyrrolizidine alkaloids, which can be hepatotoxic and potentially carcinogenic if consumed in significant amounts or over long periods. Because of these risks and the lack of strong scientific validation, its use is controversial in modern herbal medicine. In summary, coltsfoot’s use for wheezing is primarily justified by tradition, with limited scientific support and notable safety concerns.

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