Synopsis

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

Mullein (Verbascum thapsus) has a long history of use in traditional herbal medicine for respiratory ailments, including dry cough. Folk medicine in Europe and North America commonly employed mullein leaves and flowers as teas, tinctures, or syrups to soothe irritated mucous membranes and ease cough. The demulcent (soothing) properties of its mucilage are believed to coat the throat and reduce irritation, which could help relieve dry cough. Additionally, mullein is thought to have mild expectorant effects, aiding in the loosening of mucus even in non-productive coughs.

On the scientific front, evidence remains limited. Some laboratory studies suggest that mullein extracts have anti-inflammatory and mild antimicrobial properties, and may inhibit certain respiratory pathogens. However, clinical trials in humans are sparse, with most research limited to in vitro or animal studies. There is no robust clinical data specifically validating mullein’s efficacy for dry cough in humans. Despite this, its traditional use and anecdotal reports persist, and it is often included in herbal cough syrups and lozenges.

In summary, while mullein is widely used by traditional herbalists for dry cough, scientific validation is lacking. The evidence supporting its use is primarily anecdotal or based on historical practice rather than rigorous clinical research.

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