1 Product identity

Ingredient risk

3 ingredients to use with caution

Metha-Drol Extreme Pro-Anabolic Mass Stack

Name: Metha-Drol Extreme Pro-Anabolic Mass Stack
Brand: Blackstone Labs

BrandBlackstone Labs→Other Combinations Capsule 16 ingredients 3 caution DSLD #19663

Net contents: 60 Capsule(s)

Target: Adults and Children 4 years and above

DSLD entry: 2013-03-25

2 Ingredients (16)

IngredientGroupSafety

2, 17a -dimethyl 17b-hydroxy-5a-androst-1en-3-one2, 17a-dimethyl-17b-hydroxy-5a-androstan-1-ene-3-one—

2a, 17a -dimethyl-5a androstan, 17b-ol 3, 3-azine2a, 17a -dimethyl-5a androstan, 17b-ol 3, 3-azine—

13 -ethyl-3-methoxy-gona-2,5 (10)-dien-17-one13-Ethyl-3-Methoxy-Gona-2,5(10)-Diene-17-One—

Proprietary BlendProprietary Blend (Herb/Botanical)—

Grapefruit seed P.E.Grapefruit—

NiacinamideNiacinConditionally Safe

Pyridoxine HydrochlorideVitamin B6Use with Caution

Piperine 95%Piperine—

CyanocobalaminVitamin B12Use with Caution

Rice FlourRice—

GelatinGelatin—

FD & C Red#3Color—

FD & C Yellow #6Color—

Magnesium StearateMagnesium stearateUse with Caution

Stearic AcidStearic Acid—

SilicaSiliconGenerally Safe

Ingredient amounts require the full DSLD label. View full label at NIH DSLD →

⚠️ Use with caution — restricted in some markets

Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…

Vitamin B12 — Nitrous oxide anesthesia in subclinically B12-deficient patients can precipitate acute combined degeneration — always check B12 before elective p…

Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].

3 Safety cross-reference

DIM — Limited Evidence

⚠ Anti-estrogenic effects

⚠ Hormonal disruption possible

Niacin — Conditionally Safe

⚠ Flushing at >50 mg

⚠ Hepatotoxicity at high doses

Vitamin B6 — Use with Caution

⚠ Peripheral neuropathy at >200 mg/day chronically

Vitamin B12 — Use with Caution

⚠ Very low toxicity

Magnesium — Use with Caution

⚠ Diarrhea (especially oxide)

⚠ Accumulates in renal impairment

Silicon — Generally Safe

⚠ Very low toxicity

4 Label claims

• All Other

• Structure/Function

5 Data source

DSLD ID19663

Full labelView at NIH DSLD →

SourceOffice of Dietary Supplements, NIH

Market statusOn market

Entry date2013-03-25

6 More from Blackstone Labs

View Blackstone Labs Safety Scorecard → 15 products

3-Whey Cinnamon Swirl Abnormal BCAA Resurgence Orange Brutal 4ce Chosen1 Halo Elite

7 Cite this page

Vancouver

Pkhakadze G. Metha-Drol Extreme Pro-Anabolic Mass Stack — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Aug 25]. Available from: https://supplement.ge/products/dsld-19663/

CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.

Analyzed by SupplementIndex

PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD

Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG