Metribolone
Methyltrienolone · R1881
Half-life
6 hr
Time to Peak
1 hr
Steady State
~2 days
Dose Range
0.25–1 mg
Frequency
Daily
Overview
Extremely potent oral trenbolone derivative. Originally developed as a research tool for androgen receptor binding studies (R1881). One of the most potent AAS ever synthesized. Doses measured in micrograms, not milligrams, for research use. 17-alpha-alkylated. Harm reduction: EXTREMELY HEPATOTOXIC — possibly the most liver-toxic AAS in existence. This compound was abandoned for clinical use specifically due to severe hepatotoxicity. Use extreme caution. Very low doses. Very short cycles (1-2 weeks absolute maximum). Monitor liver enzymes before, during, and after. This compound is NOT recommended for recreational use by most community harm reduction resources.
Mechanism of Action
17-alpha-methyl-trenbolone. Oral form of trenbolone. Extremely high androgen receptor binding affinity. Used as the reference standard in AR binding assays (R1881).
Dosing Information
| Route | Dose Range | Half-life | Tmax | Frequency |
|---|---|---|---|---|
| Oral | 0.25–1 mg | 6 hr | 1 hr | Daily |
Storage & Handling
Room temperature — Research compound. Store at 20-25C. Protect from light.
Used in Regimens
Metribolone is not currently part of any catalog regimen.
Data Sources
- Community SteroidPlotter; AR binding study references
Related Tools
Track Metribolone with Doseline
Reminders, medication level charts, injection site rotation, and protocol tracking — all free, all private.
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