Anastrozole vs Oxandrolone
A side-by-side research comparison of Anastrozole and Oxandrolone across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Anastrozole | Oxandrolone |
|---|---|---|
| Full name | Anastrozole (Arimidex) | Oxandrolone (Anavar) |
| Category | Hormone Replacement | Hormone Replacement |
| Status | FDA-approved prescription | FDA Approved (Schedule III) |
| Mechanism | Selectively and reversibly inhibits aromatase (CYP19A1), the enzyme that converts androgens to estrogens. Reduces circulating estradiol levels without affecting other steroid pathways. | Binds androgen receptors with high anabolic:androgenic ratio (~10:1). Does not aromatize to estrogen. Increases nitrogen retention, protein synthesis, and phosphocreatine resynthesis while reducing SHBG. |
| Molecular weight | 293.37 Da | 306.44 Da |
| Half-life | ~46.8 hours | ~9 hours |
| Bioavailability | ~80-85% oral | ~97% oral |
| Typical dose | 0.25-0.5 mg | 10-20 mg (therapeutic); 20-50 mg (performance) |
| Frequency | 2-3x per week | Split 2x daily |
| Route | Oral tablet | Oral |
Anastrozole reported benefits
- Estrogen control
- Reduced water retention
- Prevention of gynecomastia
- Maintained testosterone ratio
- Improved body composition
Oxandrolone reported benefits
- Lean muscle gain without water retention
- Increased strength
- Fat loss (visceral)
- Wound healing acceleration
- Minimal estrogenic effects
- Improved bone density
Related comparisons
Research and educational reference only. Not medical advice.