Evidence-based Answer
Prescription niacin (nicotinic acid, vitamin B3) does not reduce myocardial infarctions, strokes, or overall mortality when used for primary or secondary prevention.[1] (Strength of Recommendation: A, based on consistent, good-quality patient-oriented evidence.)
Am Fam Physician. 2018;97(7):436-437. © 2018 American Academy of Family Physicians