Butterbur is intended to provide nutritive support for normal smooth muscle tissue function. The German Commission E Monograph categorizes Butterbur as an antispasmodic.

Ingredients: Cellulose, Vegetable Cellulose Capsule, Maltodextrin and Magnesium, Stearate Butterbur (Petasites hybridus) (root extract) (Guaranteed 7.5 mg [15%] Sesquiterpenes) 50 mg