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

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Synopsis

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

Mullein (Verbascum thapsus) has a long history of traditional use for respiratory ailments, including wheezing, cough, and bronchitis. Traditionally, mullein leaves and flowers have been brewed as teas, smoked, or made into tinctures to help soothe irritation in the respiratory tract and support easier breathing. Herbalists have used mullein for centuries, primarily in Europe and North America, to address complaints such as wheezing, dry coughs, and mild asthma symptoms. Folk medicine attributes mullein’s effects to its demulcent (soothing) and mild expectorant (phlegm-expelling) properties, which may help loosen mucus and reduce inflammation in the airways, thus potentially easing wheezing.

Scientific validation of mullein for wheezing is limited. There are some laboratory studies indicating anti-inflammatory, antiviral, and antimicrobial effects of mullein extracts, but robust clinical trials in humans targeting wheezing, asthma, or related respiratory conditions are lacking. Therefore, while anecdotal and historical evidence support its use for respiratory support and wheezing, the scientific evidence is not strong, and its efficacy remains largely unproven by modern standards. For people with persistent or severe respiratory symptoms, medical evaluation is essential, as mullein should not replace established treatments. In summary, mullein’s use for wheezing is rooted primarily in traditional herbal medicine, with only modest support from preliminary scientific studies.

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