Some active compounds of mullein include:
- saponins, which have anti-inflammatory, pain-relieving, and antitumor properties
- flavonoids, which have antoxiant and anti-inflammatory properties
- phenylpropanoid glycosides, which have anti-inflammatory, antioxidant, and antiviral properties
- iridoids, which have anti-inflammatory properties
Mullein is also used for asthma, bronchitis, pneumonia, colds, cough, emphysema, and many other conditions.