Niacin 500 mg
by Sundown Naturals · other (e.g. tea bag) · 200 time release caplets
- Off the market since December 2019 (NIH)
- UPC 0 30768 29505 9
- DSLD label 175256
- Serving 1 caplet
Niacin 500 mg by Sundown Naturals lists 2 ingredients, 2 with an amount per serving of 1 caplet, such as 500 mg of niacin and 106 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on March 23, 2018.
What is in Niacin 500 mg?
Each row as the label prints it, per serving of 1 caplet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Niacinas Nicotinic AcidNiacin (Form: as Nicotinic Acid) | 500 mg | 2,500% | Higher than 98% of 12,413 products listing niacin (median 20 mg). 14.3 times the adult UL a day. |
| Calciumas Dicalcium PhosphateCalcium (Form: as Dicalcium Phosphate) | 106 mg | 11% | 52% of 17,831 products listing calcium give more (median 115 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 175256 (entered March 23, 2018), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- At 1 serving a day, the most its directions give, the label lists 500 mg of niacin, 14.3 times the adult Tolerable Upper Intake Level.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Niacin 500 mg Timed ReleaseSundown Naturals · off the market same ingredients
- Niacin 500 mg Time ReleasedSundown Naturals same ingredients
- Niacin 500 mg Time ReleaseSundown Naturals · off the market same ingredients
- Niacin 500 mgSundown same ingredients
- Niacin (Inositol Hexanicotinate) 500 mgWindmill Natural Vitamins · off the market same ingredients
- No Flush Niacin 500 mgWindmill Natural Vitamins same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions: For adults, take one (1) caplet daily, preferably with a meal.
- Warnings
- Notice: Use of this product may cause a temporary skin flushing (hot feeling and skin redness), burning, itching, or rash caused by an increase in blood flow near the skin. Sensitive individuals may experience unexpected drop of blood pressure or dizziness. Do not take on an empty stomach. Do not take more than the recommended dose unless prescribed by your doctor.
- Keep out of reach of children.
- Tamper Resistant: Do not use if seal under cap is broken or missing.
- As a reminder, discuss the supplements and medications you take with your health care providers.
- Warning: Not intended for use by pregnant or nursing women. If you are taking any medications or have any medical condition, consult your doctor before use.
- Discontinue use and consult your doctor if any adverse reactions occur.
- Allergens and what it does not contain
- Smart facts ~ No artificial colors ~ No preservatives
- 100% free of No dairy/lactose No artificial flavors Non-GMO GF Gluten-free
- Non-GMO. No gluten, no lactose, no milk, no lactose, no artificial color, no artificial flavor, no artificial sweetener, no preservatives, no sugar, no soy, no starch, no yeast, no fish. Sodium free.
- Storage
- Store at room temperature and avoid excessive heat.
Source: label statements in DSLD label 175256.
What else is on the label?
Other ingredients: Vegetable Cellulose, Stearic Acid, Vegetable Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): No dairy/lactose Non-GMO GF Certified Gluten-free. Listed with: Certified gluten-free (GFCO) (a seal is the label's claim; the certifier's own list confirms it).
How many labels does Niacin 500 mg have?
3 labels are on file under this name since January 25, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 175256 (current) Entered March 23, 2018 · off the market December 4, 2019 · 200 time release caplets · UPC 0 30768 29505 9
- Label 5838 Entered February 23, 2012 · off the market December 20, 2012 · 60 caplets · UPC 0 30768 60748 7
- Label 4851 Entered January 25, 2012 · off the market December 20, 2012 · 200 caplets · UPC 0 30768 29505 9
DSLD also links this label to: Niacin 500 mg Timed Release (image difference, same product), Niacin 500 mg Timed Release (package size difference, same product), Niacin 500 mg Time Released (package size difference, same product), Niacin 500 mg Time Release (image difference, same product), Niacin 500 mg Time Release (package size difference, same product), Niacin 500 mg Time Release (package size difference, same product), Niacin 500 mg (image difference, same product), Niacin 500 mg (package size difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Rexall Sundown, Inc. (manufacturer), Boca Raton, FL. All Sundown Naturals products.