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ProhormoneApproved

Stanozolol (Winstrol)

STAN-oh-zol-ol

Research profile · How we handle evidence

Category

Prohormone

Compound type

Phase / Status

Approved

FDA approved for hereditary angioedema (1979). Banned by WADA and all sports organizations. The 'Ben Johnson' steroid.

Standard Dose

20-50mg daily (oral) or 25-50mg every other day (injectable)

Once daily (oral) or split doses

Half-life

9 hours (oral), 10 days (injectable)

Plasma elimination

Route(s)

OR

Oral

Research Stage

Market Approved

Regulatory approval granted; post-market monitoring ongoing.

Overview

Winstrol (stanozolol) is an anabolic-androgenic steroid sometimes described as a 'cutting' compound because it is not typically associated with water retention. In educational summaries, it is also discussed alongside known risks such as adverse effects on liver function and lipid profiles. This page is for learning, not for personal medical decisions.

Plain-language summary

Winstrol (stanozolol) is an anabolic-androgenic steroid sometimes described as a 'cutting' compound because it is not typically associated with water retention. In educational summaries, it is also discussed alongside known risks such as adverse effects on liver function and lipid profiles. This page is for learning, not for personal medical decisions.

Administration Routes

  • Oral

Also known as

WinnyWinstrolWinWinnieStanozololWinny-VStanoBen Johnson's DrugWinstrol Depot

Mechanisms

1

17-alpha-alkylated anabolic-androgenic steroid. After absorption, it binds androgen receptors and can influence gene expression related to protein synthesis. Because its chemical structure is modified for oral activity, it is also discussed in the context of metabolic and liver-related risk profiles. This is an overview of pharmacology, not a recommendation.

Detailed mechanism

DHT-derived oral anabolic steroid (17-alpha-alkylated) - binds to androgen receptors, promotes protein synthesis and nitrogen retention. Modulates cellular pathways and enzyme activity to produce therapeutic effects at the molecular level.

Safety

Side effects

  • Liver toxicity (17-alpha-alkylated)
  • Severe cholesterol disruption (lowers HDL, raises LDL)
  • Joint pain and dryness
  • Hair loss (if prone)
  • Testosterone suppression
  • Dry skin and hair
  • May cause insomnia

Reported benefits

  • Preserves lean muscle during cutting
  • Increases strength significantly
  • No water retention (hard/dry gains)
  • Improves athletic performance
  • May increase LDL HDL ratio
  • Popular in weight-class sports

Safety profile

Well-characterized safety profile from extensive clinical use and trials. Just kidding - this stuff is rough on your body.

Clinical trials

Completed clinical trials leading to FDA or regulatory approval.

Structure

Verified structure

Stanozolol (Winstrol)

No exact public structure match was confirmed, so the app will render a formula-backed illustration.

Formula-backed
C21H28N2O328.45 g/molCAS 10418-03-84 element fingerprint
Chemical Formula
C21H28N2O
Molecular Weight
328.45 g/mol
CAS Number
10418-03-8

Stack Context

Stacks with

TestosteroneAnavarCardarine

References

  1. 1

    Stanozolol (Winstrol) FDA drug approval record - NDA 012885 (U.S. FDA Center for Drug Evaluation and Research)

    1962

    View source
  2. 2

    Effects of anabolic-androgenic steroids on muscular strength and athletic performance: literature review (Medicine and Science in Sports and Exercise)

    1990

    View source
  3. 3

    Anabolic-androgenic steroid-induced hepatotoxicity: a systematic review of reported cases and mechanisms (Drug Safety)

    2013

    View source

This profile summarizes research literature for education only. It is not medical advice, and it does not diagnose, treat, or recommend a dose. Consult a qualified professional before changing a protocol.

Research-driven insights.Evidence-based decisions.