Dr. Costa's Lung & Immune Support was created thru the demand of his 30,000 patient database who simply wanted an effective Respiratory, Immunity, and Seasonal comfort formulation. Amazingly, this formulation dually works to assist headache and migraine headache sufferers as 2 of these vegetable capsules contain 75 mg of Butterbur. 75mg of Butterbur extract, one to two times daily, seems to reduce the number of migraine headaches by almost half. Additionally, the American Academy of Neurology and the American Headache Society have endorsed the use of a Butterbur extract to reduce the frequency of migraines. This advanced and powerful formula is the ultimate Lung and Immunity support as it will assist in improving Lung function and strength, and supports the strengthening of the immune system allowing one to more readily fight off sickness and allergy related issues.