title: Niacin or niacinamide? Nicotinic acid or nicotinamide? What is the difference?
mesh_terms: D006801:Humans; D009525:Niacin / Q000009:adverse effects / Q000494:pharmacology*; D009536:Niacinamide / Q000009:adverse effects / Q000494:pharmacology*
chemical_list: D009536:Niacinamide; D009525:Niacin