I believe this product will give you better results than the FDA approved Niaspan. My physician advised me nine months ago to take the prescription Niacin because I would better results with HDL levels. However, my HDL has risen from 25 to 49 since I started the Bluebonnet Flush-Free 500mg. I am taking 2000 mg. a day with no side effects. My physician was really impressed! He told me to continue on with Bluebonnet, because of the great results.