Niacin, also known as vitamin B3, is primarily used for treating high cholesterol. It is available as a prescription medication and as a dietary supplement, and comes in tablet and capsule form. The vitamin is taken once or twice daily, several times a day, or once daily at bedtime (depending on the specific niacin product). You should talk to your healthcare provider before taking niacin if you are pregnant, have diabetes, or have gout.
(Click Niacin for more information about niacin and its various forms and strengths, dosing guidelines, and potential side effects. You can also click on the various links in the box to the right to access specific topics on niacin.)