Comparison

Niacin 500 mg and Niacin 500 mg Timed Release

Niacin 500 mg (Sundown Naturals) lists 2 distinct ingredients and Niacin 500 mg Timed Release (Sundown Naturals) 2 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
IngredientNiacin 500 mgNiacin 500 mg Timed Release
Calcium106 mg (8%)106 mg (8%)
Niacin500 mg (3125%)500 mg (3125%)

Amounts are per serving as DSLD gives them: Niacin 500 mg, 1 caplet; Niacin 500 mg Timed Release, 1 caplet. Current labels entered March 2018 and March 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own