Niacin T.R. 400 mg
by Douglas Laboratories · capsule · 120 capsules
- On the market (NIH)
- UPC 3 10539 01840 8
- DSLD label 9161
- Serving 1 capsule
- 120 servings
Niacin T.R. 400 mg by Douglas Laboratories lists one ingredient: 400 mg of niacin per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on June 1, 2012.
What is in Niacin T.R. 400 mg?
Each row as the label prints it, per serving of 1 capsule. 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 |
|---|---|---|---|
| Niacin | 400 mg | 2,000% | Higher than 97% of 12,413 products listing niacin (median 20 mg). 11.4 times the adult UL a day. |
Source: NIH ODS Dietary Supplement Label Database, label 9161 (entered June 1, 2012), 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 400 mg of niacin, 11.4 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.
- Niacinate-400Douglas Laboratories same ingredients
- Niacin 400 mgViva Vitamins same ingredients
- Nialipin 400 mgCardiovascular Research · off the market same ingredients
- NialipinCardiovascular Research same ingredients
- No-Flush NiacinAllergy Research Group same ingredients
- No-Flush NiacinNutriCology 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
- Suggested Usage: As a dietary supplement, adults take 1 or more capsules daily or as directed by physician.
- Warnings
- KEEP OUT OF REACH OF CHILDREN.
- Tamper resistant package, do not use if outer seal is missing.
- Allergens and what it does not contain
- This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.
- Storage
- For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)
Source: label statements in DSLD label 9161.
What else is on the label?
Other ingredients: Cellulose, Gelatin.
How many labels does Niacin T.R. 400 mg have?
2 labels are on file under this name since June 1, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 9161 (current) Entered June 1, 2012 · on the market · 120 capsules · UPC 3 10539 01840 8
- Label 9154 Entered June 1, 2012 · on the market · 100 capsules · UPC 3 10539 00516 3
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Douglas Laboratories (distributor), Pittsburgh, PA. All Douglas Laboratories products.