Both Petadolex Patented Brain Support and Petadolex ASAP contain a patented, standardized, and clinically studied extract of butterbur (Petasites hybridus). These herbal products feature a unique extraction method (for which the patent was granted) guaranteeing that they are free of pyrrolizidine alkaloids. Petasites hybridus has an approved monograph in the Complete German Commission E Monographs. This product is a member of the following Protocols: Women's Health - Special Needs Recommendations: One softgel capsule three times daily for the first four weeks. Thereafter, one softgel capsule twice daily. Supplement Facts Serving Size: 1 Softgel Capsule Amount/Serving %DV Purple Butterbur (Petasites hybridus) 50 mg * (Petadolex® brand) Root Extract standardized to contain 7.5 mg petasins and to be free of pyrrolizidine alkaloids (PAs) *Daily Value (DV) not established. Other Ingredients: medium chain triglycerides, gelatin, glycerin, water, and riboflavin color. Contains No: sugar, salt, yeast, wheat, gluten, corn, soy, dairy products, artificial flavoring or preservatives. All colors used are from natural sources.