Butterbur Extract by Solaray 60 VegCap Solaray Butterbur Extract Butterbur is intended to provide nutritive support for normal smooth muscle tissue function. The German Commission E Monograph categorizes Butterbur as an antispasmodic. Butterbur Extract Ingredients Ingredient Amount per serving Daily Value Cellulose Vegetable Cellulose Capsule Maltodextrin and Magnesium Stearate Butterbur (Petasites hybridus) (root extract) (Guaranteed 7.5 mg 15 Sesquiterpenes) 50 mg Key to Ingredients Daily Value not established. + Percent Daily Value is based on a 2 000 calorie diet. Values differ depending on age Values differ depending on age Directions Take one vegetarian capsule up to two times daily with a meal or glass of water. Store in a cool dry place.