Niacin

Niacin is used with diet changes (restriction of cholesterol and fat intake) to reduce the amount of cholesterol and certain fatty substances in your blood. Niacin is also used to prevent and treat pellagra (niacin deficiency), a disease caused by inadequate diet and other medical problems. Niacin is a B-complex vitamin.

I've recently started taking Niacin as an over the counter on the advice of a physician who happens to be a family member. Your results may vary so make sure you check with your physician.

For more info check out the wikipedia on Niacin at: http://en.wikipedia.org/wiki/Niacin