Anadrol vs Winstrol
FDA Approved vs Well Studied
avoid Mechanism-based · 64% Both Anadrol and Winstrol carry hepatotoxic risk. Combining hepatotoxic compounds significantly increases liver damage potential. If unavoidable, include liver support (TUDCA/NAC) and monitor ALT/AST frequently.
Molecular Data
Anadrol Winstrol
Weight 332.48 Da 328.49 Da
Half-life ~8-9 hours ~9 hours (oral), ~24 hours (injectable)
Type 17-alpha alkylated anabolic steroid (C21H32O3) 17-alpha-alkylated anabolic-androgenic steroid (C21H32N2O)
Key Benefits
Anadrol
01 Rapid and dramatic increases in muscle mass and bodyweight
02 Exceptional strength gains, often noticeable within the first week
03 Potent stimulation of erythropoietin and red blood cell production
04 Increased appetite and nutrient partitioning in some users
05 Improved recovery between training sessions
06 Full, round muscle appearance due to intramuscular water and glycogen retention
07 FDA-approved treatment for various forms of anemia
Winstrol
01 Produces a dry, hard, and vascular appearance without water retention
02 Significant strength increases without proportional weight gain, favored in weight-class sports
03 Does not aromatize to estrogen, eliminating gynecomastia and bloating concerns
04 Potent suppression of SHBG, increasing free testosterone and enhancing the effectiveness of stacked compounds
05 Available in both oral and injectable formulations
06 High anabolic-to-androgenic ratio (320:30) relative to methyltestosterone
07 FDA-approved for hereditary angioedema prophylaxis
08 Enhances vascularity and muscle definition during caloric deficit
Dosing Protocols
Anadrol
25-50 mg/day / Once or twice daily (oral)
Winstrol
25-50 mg/day (oral), 50 mg EOD (injectable) / Daily (oral) or every other day (injectable)
Performance - Standard Injectable 50 mg every other day Every other day (EOD)
Side Effects
Anadrol
Significant water retention and bloating (estrogenic, not aromatase-mediated)
Elevated blood pressure (fluid volume and RBC increase)
Severe liver stress and elevated liver enzymes (AST/ALT)
Back pumps and lower back pain during exercise
Headaches (often blood pressure-related)
Appetite suppression (paradoxical for a mass-building compound)
Lethargy and fatigue (hepatic strain-related)
Acne and oily skin
Suppression of natural testosterone production
Winstrol
Severe HDL cholesterol suppression (winstrol is among the worst oral steroids for lipid damage)
Significant LDL cholesterol elevation
Joint dryness and pain, particularly in knees, shoulders, and elbows (notorious side effect)
Hepatic stress with elevated liver enzymes (ALT/AST)
Suppression of endogenous testosterone production
Hair loss and accelerated male pattern baldness (DHT derivative, particularly harsh on hairline)
Acne and oily skin
Tendon and ligament stress due to rapid strength gains combined with reduced joint lubrication
Dry, painful shin splints during cardiovascular exercise
Contraindications
Pre-existing liver disease or significantly elevated liver enzymes
Prostate cancer or breast cancer in males
Nephrotic phase of nephritis
Hypercalcemia (Anadrol can exacerbate calcium levels)
Pregnancy (Category X - causes virilization of the female fetus)
Known hypersensitivity to oxymetholone
Concurrent use of other 17-alpha alkylated oral steroids (compounded liver toxicity)
Known or suspected prostate cancer
Breast cancer in males
Breast cancer with hypercalcemia in females
Pregnancy (Category X - known to cause fetal harm)
Severe hepatic dysfunction or active liver disease
Nephrosis or nephrotic phase of nephritis
Pre-existing severe cardiovascular disease or dyslipidemia
Hypersensitivity to stanozolol or any formulation component
Research Evidence
Anadrol Winstrol
Status FDA Approved Well Studied
References 5 studies 5 studies
Latest 2018 June 2023
FDA Approved Yes Yes
This comparison is for educational and research purposes only. Consult a healthcare professional before use.