Slippery elm (Ulmas rubra) is a tree native to North America. The inner bark has been used for generations to soothe minor throat irritation associated with exposure to dust, excessive talking and other everyday activities. These Planetary Herbals great tasting tangerine flavored Slippery Elm Lozenges contain echinacea and vitamin C for immune support. Packaging 200 lozenge Suggested Use 1 lozenge as needed. Do not exceed 10 lozenges daily. For optimal results, allow lozenge to slowly dissolve in the mouth for prolonged contact with the throat. Ingredients Slippery Elm Inner Bark - 150 mg Other Ingredients: fructose, natural orange tangerine flavor, stevia leaf concentrate, and magnesium stearate.