Nature's Sunshine Feverfew (High-Parthenolide)  supports the body's efforts to balance levels of prostaglandins and serotonin. Imbalanced or high levels of these two natural chemicals may lead to physical reactions associated with discomfort. Prostaglandins monitor inflammation levels in the body and serotonin constricts and then dilates arteries, altering blood flow. Feverfew (Tanacetum parthenium) commonly known as Bachelor's Buttons contains niacin and iron and provides nutritional support to the central nervous system. This herb may offer nutritional support for helping to reduce the chemicals associated with inducing migraines.