Spirodrene

by EST Engineered Sports Technology · tablet or pill · 30 spiro tabs

  • Off the market since April 2024 (NIH)
  • DSLD label 1963
  • Serving 1 tablet (Spiro Tabs)
  • 30 servings

Spirodrene by EST Engineered Sports Technology lists 16 ingredients, 3 with an amount per serving of 1 tablet, such as 200 mcg of vitamin B12, 10 mg of vitamin B3 and 25 mg of vitamin B; 13 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on November 25, 2011.

What is in Spirodrene?

Each row as the label prints it, per serving of 1 tablet. 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).

Spirodrene: Supplement Facts rows against the market (DSLD label 1963, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B12as Methylcobalamin200 mcg3,333%Vitamin B12 in Spirodrene against 14,425 products200 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg200 mcg

Higher than 74% of 14,425 products listing vitamin B12 (median 36 mcg).

Vitamin B3as Niacin10 mg50%Niacin in Spirodrene against 12,413 products10 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg10 mg

77% of 12,413 products listing niacin give more (median 20 mg).

Vitamin Bas Pyridoxine Hydrochloride25 mg1,250%Vitamin B6 in Spirodrene against 15,277 products25 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg25 mg

Higher than 76% of 15,277 products listing vitamin B6 (median 6 mg).

Spirodrene Exclusive Blend580 mg
Immediate ReleaseImmediate Release (Form: as Caffeine Anhydrous)in the blend, no amount given
CaffeineCaffeine Note: USPin the blend, no amount given
Red Teaas PolyphenolsRed Tea (Form: 30% Polyphenols)in the blend, no amount given
White GinsengWhite Ginseng Note: Koreanin the blend, no amount given
1,3 Dimethylamylaminein the blend, no amount given
Secondary Releasein the blend, no amount given
Di-Caffeine Malatein the blend, no amount given
TheobromineTheobromine Note: 98%in the blend, no amount given
Yohimbine HClin the blend, no amount given
Raspberry Ketonein the blend, no amount given
Kelpin the blend, no amount given
Thyro-Tin the blend, no amount given
4-Hydroxyphenylalanine4-Hydroxyphenylalanine Note: Salts fromin the blend, no amount given
L-Tyrosine AKGno amount given
L-Tyrosine Ethyl Esterno amount given
N-Acetyl L-Tyrosineno amount given

Source: NIH ODS Dietary Supplement Label Database, label 1963 (entered November 25, 2011), 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; 13 ingredients sit inside a blend, so their amounts cannot be compared.

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.

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
CAUTION: SPIRODRENE(TM) is highly potent. DO NOT consume more than ONE serving daily.
Do not exceed recommended dose.
Suggested Use: Take one Spiro Tab daily. Do not exceed more than one serving daily, as Spirodrene is highly potent. For best results, always remember to drink at least 64 oz. (8 glasses) of water daily.
Warnings
Consult your physician prior to use if you are pregnant or nursing, or if you are taking medications; including, but not limited to MAOI inhibitors, antidepressants, aspirin, nonsteroidal anti-inflammatory drugs, or other stimulants.
Consult your physician prior to use if you have a medical condition; including, but not limited to heart, liver, kidney, or thyroid disease, psychiatric or epileptic disorders, difficulty urinating, diabetes, high blood pressure, cardiac arrhythmia, recurrent headaches, enlarged prostate or glaucoma. Discontinue two weeks prior to surgery or if you experience rapid heart beat, dizziness, severe headache, or shortness of breath.
Do not consume caffeine from other sources, including but not limited to; coffee, tea, soda, and other dietary supplements or medications containing phenylephrine or caffeine. Spirodrene(TM) contains caffeine and should not be taken by individuals wishing to eliminate this ingredient from their diet.
If you have difficulty sleeping, do not take after 4:00 PM. Healthy adults should cycle off this product after twelve weeks of use.
Warning: Not intended for use for persons under the age of 18.

Source: label statements in DSLD label 1963.

What else is on the label?

Other ingredients: Stearic Acid, Magnesium Stearate.

How many labels does Spirodrene have?

One label is on file, entered on November 25, 2011.

  1. Label 1963 (current) Entered November 25, 2011 · off the market April 29, 2024 · 30 spiro tabs

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

Who makes it?

The label names EST Engineered Sports Technology (manufacturer). All EST Engineered Sports Technology products.

Where next?