Disclaimer
CompoundIQ publishes research summaries for informational and educational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare provider. Many compounds listed are research chemicals not approved for human use.
Methasterone
Also known as: Superdrol, Methyldrostanolone, SD
Methasterone (Superdrol) is a potent oral designer steroid that was briefly sold as a legal 'prohormone' supplement. It is a methylated derivative of drostanolone (Masteron), providing dramatic lean mass gains and strength increases. It is notoriously one of the most hepatotoxic oral steroids ever marketed.
Risk Level
Very High RiskDifficulty
Advanced| CAS Number | 3381-88-2 |
| Molecular Formula | C21H34O3 |
| Class | Steroid |
| Category | Underground Steroids |
Mechanism of Action
A 17-alpha-methylated derivative of drostanolone that provides direct anabolic/androgenic activity without requiring conversion. Does not aromatize to estrogen. Has a very high anabolic-to-androgenic ratio. Promotes significant dry lean mass gains and strength. Its methylation at C-17 allows oral bioavailability but causes severe liver stress.
Dosing Research
Typically dosed at 10-30 mg per day in oral form. Cycles are strictly limited to 3-4 weeks due to extreme hepatotoxicity. Even low doses of 10 mg per day produce significant results. Liver support supplements are considered essential. Requires aggressive PCT due to heavy HPTA suppression.
Side Effects & Risks
Extreme hepatotoxicity — among the most liver-toxic oral steroids. Cases of cholestatic jaundice, liver failure, and hepatic peliosis have been reported. Severe lethargy and decreased appetite are very common, often limiting cycle length. Dramatic negative impact on lipid profiles. Significant HPTA suppression. Shin splints and lower back pumps are frequently reported.
Research Studies
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Disclaimer
CompoundIQ publishes research summaries for informational and educational purposes only. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare provider. Many compounds listed are research chemicals not approved for human use.