PlainVitamins

Synadrene

by Hi-Tech Pharmaceuticals · capsule · 45 capsules

  • On the market (NIH)
  • DSLD label 210064
  • Serving 1 capsule
  • 45 servings

Synadrene by Hi-Tech Pharmaceuticals lists 13 ingredients, 13 with an amount per serving of 1 capsule, such as 100 mcg of vitamin B12, 20 mg of vitamin B3, 175 mcg of chromium and 4.25 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on December 22, 2019.

What is in Synadrene?

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).

Synadrene: Supplement Facts rows against the market (DSLD label 210064, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin)100 mcg1,666%Vitamin B12 in Synadrene against 14,425 products100 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg100 mcg

Higher than 61% of 14,425 products listing vitamin B12 (median 36 mcg).

Vitamin B3as NiacinVitamin B3 (Form: as Niacin)20 mg100%Niacin in Synadrene against 12,413 products20 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg20 mg

46% of 12,413 products listing niacin give more (median 20 mg).

Chromiumas Chromium PolynicotinateChromium (Form: from Chromium Polynicotinate)175 mcg146%Chromium in Synadrene against 7,825 products175 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg175 mcg

Higher than 71% of 7,825 products listing chromium (median 100 mcg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine HCl)4.25 mg212%Vitamin B6 in Synadrene against 15,277 products4.25 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg4.25 mg

59% of 15,277 products listing vitamin B6 give more (median 6 mg).

Synadrene Proprietary Blend815 mg
Caffeine Anhydrous0
Green Tea extract0
2-Aminoisoheptane HCl0
Walnut extract0
Sulbutiamine0
Sandalwood extract0
Yohimbe extract0
Alpha Lipoic Acid0
Poly-Thyronine0

Source: NIH ODS Dietary Supplement Label Database, label 210064 (entered December 22, 2019), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

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.

What else is on the label?

Other ingredients: Dicalcium Phosphate, Silicon Dioxide, Magnesium Stearate, Titanium Dioxide, FD&C Blue #1, FD&C Red #40, Gelatin.

How many labels does Synadrene have?

One label is on file, entered on December 22, 2019.

  1. Label 210064 (current) Entered December 22, 2019 · on the market · 45 capsules

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Hi-Tech Pharmaceuticals (manufacturer). All Hi-Tech Pharmaceuticals products.

Where next?