Traditional Uses: Traditionally used in European and Chinese herbal medicine as a soothing expectorant for dry coughs, bronchitis, asthma, hoarseness, and sore throats, often prepared as a tea, tincture, or smoked.
Potential Benefits: May act as a demulcent and expectorant to soothe irritated respiratory mucous membranes, based on traditional use, with laboratory studies suggesting anti-inflammatory, antioxidant, and antitussive properties, though clinical evidence is lacking.
Warnings: Contains hepatotoxic pyrrolizidine alkaloids that can cause severe liver damage; internal use is strongly discouraged by many health authorities, and the herb has been banned in Germany; avoid entirely during pregnancy, breastfeeding, and in individuals with liver disease; PA-free certified products are preferable if used.
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