Methyltestosterone vs Nandrolone Decanoate
A side-by-side research comparison of Methyltestosterone and Nandrolone Decanoate across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Methyltestosterone | Nandrolone Decanoate |
|---|---|---|
| Full name | Methyltestosterone (Oral Testosterone) | Nandrolone Decanoate (Deca-Durabolin) |
| Category | Anabolic Steroids | Anabolic Steroids |
| Status | FDA-approved drug (controlled substance) | Prescription drug (controlled substance) |
| Mechanism | A 17-alpha-alkylated testosterone that survives first-pass liver metabolism, allowing oral dosing. It acts on androgen receptors like testosterone and aromatizes to estrogen, but its 17aa structure makes it hepatotoxic. | Nandrolone is testosterone lacking the 19-carbon methyl group, giving it high anabolic and lower androgenic activity. It binds androgen receptors and, unlike testosterone, converts to a weaker androgen (rather than DHT) in some tissues, reducing certain androgenic effects but not estrogen-related ones. |
| Molecular weight | 302.5 Da | 428.6 Da |
| Half-life | ~2.5-4 hours | ~6-12 days |
| Bioavailability | Oral (17aa) | Intramuscular injection |
| Typical dose | Medical: ~10-50 mg/day (historical) | Medical: ~50-100 mg every 1-4 weeks |
| Frequency | Daily | Weekly to monthly (medical) |
| Route | Oral or buccal tablet | Intramuscular injection |
Methyltestosterone reported benefits
- Oral testosterone activity
- Treats androgen deficiency (historical)
- Convenience of oral dosing
Nandrolone Decanoate reported benefits
- Lean muscle mass gains
- Reputed joint comfort
- Increased red blood cell production
- Treats certain anemias/wasting (medical)
- Improved nitrogen retention
Related comparisons
Research and educational reference only. Not medical advice.