Mullein

Take 2 capsules with a meal twice daily. Nature's Sunshine Mullein’s high mucilage content and mild saponins make it a support for the respiratory system. 

Mucilage absorbs water in the body and becomes slippery. Product code: 099904004603 Cautions
If taking medication please consult your health care professional for individual concerns. Ingredients
Each capsule contains, 

Mullein Leaf (Verbascum thapsus) 290 mg