Niacin Sustained Release 500 mg tablets slowly release 500 mg of pure niacin. Sustained release niacin is better tolerated than regular crystalline high-potency niacin supplements.
Adults take one tablet one to four times daily. Each tablet is a scored, uncoated tablet which can be broken in half if desired. This supplement is formulated to release niacin slowly over a 2 to 3.5 hour to reduce the skin-flushing effect of this vitamin. As a general guideline when substituting Niacin Sustained Release for crystalline niacin, use Niacin Sustained Release at 1/2 to 2/3 of the level used for crystalline niacin.