Winstrol
Stanozolol / Winny · Anabolic steroid (oral or injectable)
What it is
A DHT-derived steroid, infamous from the 1988 Ben Johnson doping scandal. Available as oral tablets or an injectable suspension; both forms are 17-alpha-alkylated. Non-medical physique and performance use is reported; no controlled trials establish those outcomes.
What human evidence shows
Old prescription history (hereditary angioedema) proves biological activity, not safety for physique use. No controlled trial has measured the cosmetic or strength outcomes it is used for.
Risks
17-alpha-alkylated liver load in BOTH forms (injectable included — unusual and widely misunderstood), severe lipid disruption (HDL falls fast), frequently-reported joint dryness and tendon complaints, strong hair-loss pressure, and marked HPG-axis suppression. Case reports of drug-induced liver injury and hepatic tumors exist.
Stacking interactions
Documented interactions with other things people research. A compound not listed here does not mean the combination is safe — only that no specific interaction is on file.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.
Legal status
US: Schedule III anabolic steroid under the CSA. Historically FDA-approved; current marketing status should be verified against the FDA Orange Book.
Evidence base
established literature
Strong human evidence: either a phase 3 or 4 trial report alongside review-level evidence, or ten or more randomised controlled trial reports.
- phase 3/4
- 0
- randomised
- 28
- reviews
- 5
- human trials
- 67
Counts are of published papers, not distinct trials, and measure how much research exists — not whether this works or is safe for you.
Research (12)
- Stanozolol as a novel therapeutic agent in dermatologyJ Am Acad Dermatol · 1995
- Stanozolol-induced bland cholestasisGastroenterol Hepatol · 2014
- Effect of Stanozolol combined with Cyclosporine A on aplastic anemiaAm J Transl Res · 2023
- Stanozolol-induced Liver Injury: A Distinctive Cholestatic Clinical and Biochemical Phenotype at PresentationJ Clin Exp Hepatol · 2025
- Stanozolol-N-glucuronide metabolites in human urine samples as suitable targets in terms of routine anti-doping analysisDrug Test Anal · 2021
- GnRHa/Stanozolol Combined Therapy Maintains Normal Bone Growth in Central Precocious PubertyFront Endocrinol (Lausanne) · 2021
- [STANOZOLOL IN PEDIATRICS]Sem Med · 1963
- Hereditary angioedemaInt J Dermatol · 1983
- The effect of stanozolol on 15nitrogen retention in the dogCan J Vet Res · 2000
- Stanozolol and Danazol Have Different Effects on Hematopoiesis in the Murine Model of Immune-Mediated Bone Marrow FailureFront Med (Lausanne) · 2021
- Hepatotoxicity of stanozolol in catsJ Am Vet Med Assoc · 2000
- Neurotoxic Effects of Stanozolol on Male Rats' Hippocampi: Does Stanozolol cause apoptosis?Biomol Concepts · 2019
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