Nicotinamide is needed for the proper functioning of the nervous and digestive systems as well as for healthy skin. Another name for nicotinamide is vitamin B3. Ingredients: One Tablet of Lamberts Nicotinamide (Vitamin B3) provides: Niacin (as Nicotinamide) 250mg Other Ingredients:Tableted with: Calcium Carbonate, Cellulose, DiCalcium Phosphate, Tablet Coating (Hydroxypropyl Methylcellulose, Glycerin), Crosslinked Cellulose Gum, Stearic Acid, Silicon Dioxide, Magnesium Stearate, Hydroxypropyl Cellulose.Directions:1 to 2 Tablets daily with a meal.Caution: Do not take if pregnant or breast feeding.