Baby Safety / Compounds / Stanozolol

Is Stanozolol safe for babies and kids?

Elevated risk for kids

Infants have immature drug-metabolizing enzymes (CYP450 ontogeny), reduced renal clearance, and different volume of distribution. Accidental exposure or breast milk transfer of Stanozolol poses heightened risk.

What is stanozolol?

The IUPAC name is (1S,2S,10S,13R,14S,17S,18S)-2,17,18-trimethyl-6,7-diazapentacyclo[11.7.0.02,10.04,8.014,18]icosa-4(8),5-dien-17-ol.

Also known as: (1S,2S,10S,13R,14S,17S,18S)-2,17,18-trimethyl-6,7-diazapentacyclo[11.7.0.02,10.04,8.014,18]icosa-4(8),5-dien-17-ol, Winstrol, Androstanazole, Androstanazol.

IUPAC name
(1S,2S,10S,13R,14S,17S,18S)-2,17,18-trimethyl-6,7-diazapentacyclo[11.7.0.02,10.04,8.014,18]icosa-4(8),5-dien-17-ol
CAS number
10418-03-8
Molecular formula
C21H32N2O
Molecular weight
328.5 g/mol
SMILES
CC12CCC3C(C1CCC2(C)O)CCC4C3(CC5=C(C4)NN=C5)C
PubChem CID
25249

Risk for babies

Elevated risk

Infants have immature drug-metabolizing enzymes (CYP450 ontogeny), reduced renal clearance, and different volume of distribution. Accidental exposure or breast milk transfer of Stanozolol poses heightened risk.

Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.

What to do: Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Risk for pregnant and nursing people

High risk

Stanozolol poses pregnancy risk through potential teratogenicity, altered pharmacokinetics (increased blood volume, changed CYP activity), and placental transfer. FDA pregnancy category should be evaluated.

Known reproductive toxicant (GHS H360) or confirmed endocrine disruptor. Placental transfer is presumed. Fetal exposure during critical developmental windows may cause structural malformations, growth restriction, or functional deficits.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

2 regulatory and scientific bodies have classified Stanozolol. The classifications differ — that's the data.

AgencyYearClassificationNotes
IARC (androgens as anabolic steroid drug class classified Group 2A in Vol 100A, 2012; stanozolol as a 17α-alkylated oral androgen with documented hepatotoxicity)2012IARC Group 2A for androgenic anabolic steroid drug class; Schedule III controlled substance (USA DEA); 17α-alkylated oral anabolic androgenic steroid; hepatotoxic (peliosis hepatis, hepatic adenoma, hepatocellular carcinoma risk); WADA prohibited substance; no longer FDA-approved (US marketing discontinued); veterinary use (Winstrol-V); not classified for carcinogenicity by NTP, EFSA, or US EPA as individual compound
EPA CTX / CalEPA—Known human carcinogen

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where kids encounter stanozolol

  • Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational Environments — Factories, Warehouses, Transportation vehicles

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Stanozolol:

  • Therapeutic alternatives (consult prescriber)
    Trade-offs: Drug-specific. Cannot substitute without medical guidance.
    Relative cost: 1.2-2×

Frequently asked questions

Is stanozolol safe for kids?

Infants have immature drug-metabolizing enzymes (CYP450 ontogeny), reduced renal clearance, and different volume of distribution. Accidental exposure or breast milk transfer of Stanozolol poses heightened risk.

What products contain stanozolol?

Stanozolol appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).

What should I do if my child is exposed to stanozolol?

Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

See Stanozolol in the baby app

Look up products containing stanozolol, compare to alternatives, and explore the full data record.

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Sources (1)
  1. IARC Monographs Vol 100A 2012: Androgenic Anabolic Steroid Drugs Group 2A; Stanozolol 17α-Alkylated DHT Derivative; Hepatotoxicity Peliosis Hepatis HCC Cholestasis; Ben Johnson 1988 Olympics; No Aromatization; Severe HDL Suppression; Schedule III; Winstrol-V Veterinary (2012) — regulatory

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →