Niacin/Niacinamide, Oral: Drug Information. Facts and Comparisons Retrieved May 10, 2016 http://online.factsandcomparisons.com/MonoDisp.aspx?monoID=fandc-hcp18601&quick=-273284%7c5&search=-273284%7c5&isstemmed=True&NDCmapping=-1&fromTop=true#firstMatch
Niacin/Niacinamide, Oral Prescribing Information, Natural Database and Therapeutic Research Retrieved May 10, 2016 from http://naturaldatabase.therapeuticresearch.com/nd/search.aspx?cs=naturalstandard&s=ND&pt=103&id=5165
Niacin/Niacinamide Oral: Drug Information. Daily Med at FDA Retrieved May 10,2016 https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=6e604319-e164-4056-ab80-b78b98c519c7&audience=consumer