PlainVitamins

Dymetadrine Xtreme

by AST Sports Science · capsule · 100 capsules

  • On the market (NIH)
  • UPC 7 05077 00302 1
  • DSLD label 74097
  • Serving 2 capsules
  • 50 servings

Dymetadrine Xtreme by AST Sports Science lists 9 ingredients, 9 with an amount per serving of 2 capsules, such as 40 mg of vitamin C, 16 mg of vitamin B6, 300 mg of green tea extract and 300 mg of caffeine anhydrous. Its current label entered the NIH Dietary Supplement Label Database on June 23, 2017.

What is in Dymetadrine Xtreme?

Each row as the label prints it, per serving of 2 capsules. 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).

Dymetadrine Xtreme: Supplement Facts rows against the market (DSLD label 74097, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid40 mg67%Vitamin C in Dymetadrine Xtreme against 18,583 products40 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg40 mg

81% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 120 mg.

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine Hydrochloride)16 mg800%Vitamin B6 in Dymetadrine Xtreme against 15,277 products16 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg16 mg

Higher than 70% of 15,277 products listing vitamin B6 (median 6 mg). Per day at the most servings: 48 mg.

Green Tea extractas EGCGGreen Tea extract (Form: 50% EGCG) PlantPart: leaf300 mgGreen Tea in Dymetadrine Xtreme against 2,595 products300 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.300 mg

Higher than 77% of 2,595 products listing green tea (median 100 mg). Per day at the most servings: 900 mg.

Caffeine Anhydrous300 mgCaffeine in Dymetadrine Xtreme against 3,358 products300 mg per serving; the middle half of products list 100 mg to 275 mg, the median 200 mg.300 mg

Higher than 76% of 3,358 products listing caffeine (median 200 mg). Per day at the most servings: 900 mg.

L-Phenylalanine275 mgPhenylalanine in Dymetadrine Xtreme against 611 products275 mg per serving; the middle half of products list 100 mg to 597.5 mg, the median 250 mg.275 mg

Higher than 55% of 611 products listing phenylalanine (median 250 mg). Per day at the most servings: 825 mg.

L-Tyrosine275 mgTyrosine in Dymetadrine Xtreme against 1,680 products275 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.275 mg

64% of 1,680 products listing tyrosine give more (median 500 mg). Per day at the most servings: 825 mg.

Octopamine Hydrochloride40 mg
Theobromine25 mgTheobromine in Dymetadrine Xtreme against 372 products25 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.25 mg

89% of 372 products listing theobromine give more (median 100 mg). Per day at the most servings: 75 mg.

Yohimbine Hydrochloride3 mgYohimbine in Dymetadrine Xtreme against 141 products3 mg per serving; the middle half of products list 2 mg to 4.5 mg, the median 3 mg.3 mg

35% of 141 products listing yohimbine give more (median 3 mg). Per day at the most servings: 9 mg.

Source: NIH ODS Dietary Supplement Label Database, label 74097 (entered June 23, 2017), 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:

  • 89% of the 372 products that print an amount of theobromine list more than its 25 mg of theobromine (median 100 mg).

The NIH database records 1 to 3 servings 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?

The products whose ingredient lists overlap most with Dymetadrine Xtreme's, rare ingredients counting for more.

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
Recommended Use: As a dietary supplement, take two capsules 45 minutes before your morning meal and two more capsules at mid-afternoon with 8 ounces of water. For extra energy, take two capsules with 8 ounces of water 45 minutes before your workout. Do not exceed 6 capsules daily. For best results use in combination with a low-fat diet and exercise program.
Warnings
Warning: Consult your physician before use.
Not for use by individuals under the age 18.
Do not use if you are pregnant or nursing or if you are at risk of or are being treated for high blood pressure, heart disease, renal disease, hyperthyroidism, spasms, psychiatric disease, suffer from migraines, are allergic to tyramine or chocolate, have asthma, are taking asthma medication or if you are taking an MAO inhibitor.
Do not use if you are pregnant or nursing or if you are at risk of or are being treated for high blood pressure, heart disease, renal disease, hyperthyroidism, spasms, psychiatric disease, suffer from migraines, are allergic to tyramine or chocolate, have asthma, are taking asthma medication or if you are taking an MAO inhibitor. This product contains caffeine and should not be taken be individuals wishing to eliminate caffeine from their diet.
Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Warning Statement: Product contains 300mg of caffeine per serving.

Source: label statements in DSLD label 74097.

What else is on the label?

Other ingredients: Cellulose, Plant, Magnesium Stearate, Silicon Dioxide, Titanium Dioxide.

How many labels does Dymetadrine Xtreme have?

3 labels are on file under this name since May 24, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 74097 (current) Entered June 23, 2017 · on the market · 100 capsules · UPC 7 05077 00302 1
  2. Label 43937 Entered March 25, 2015 · off the market April 12, 2017 · 100 capsules · UPC 7 05077 00302 1
  3. Label 21455 Entered May 24, 2013 · off the market March 19, 2015 · 100 capsules · UPC 7 05077 00302 1

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

Who makes it?

The label names AST Sports Science (manufacturer), Golden, CO. All AST Sports Science products.

Where next?