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A biennial herb that contains flavonoids, glycosides (aucubin), mucilage, saponins and volatile oil, which is anti-inflammatory, diuretic, expectorant and sedative. Mullein is used to treat respiratory conditions (such as asthma, bronchitis, colds and whooping cough), insomnia, urinary tract infections and rheumatic pain; it has been used topically for skin inflammation and infections, haemorrhoids, and earaches.
Mullein should not be used in patients with cancer, as it has cancer-promoting activity; it should not be used in pregnancy or while nursing, as the seeds are toxic.
n See mullein.