Swanson Superior Herbs Butterbur Extract 75mg -- 2 Bottles each of 60 Capsules
Each capsule supplies 75 mg of butterbur extract standardized to a guaranteed 15% petasins and certified free of pyrrolizidine alkaloids (PAs). Suggested use: As a dietary supplement, take one capsule two times per day with water. WARNING: Do not take this product if you are pregnant or nursing.