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BSemi-durableStandard research/education caution
CMP-0217
Approved in some regions
Mesterolone / Proviron
Endocrine / Androgen
Androgenic/libido/SHBG effects more than muscle-building
Reading this compound Reference only
Information below is educational. Dosing, mechanisms and status fields are compiled from the source list at the bottom of this page — always verify against a licensed clinician before use.
Reference-only summary of publicly discussed or source-listed patterns. Not medical advice and not a personal recommendation.
Mechanism & Use
- Compound type
- DHT-derived oral androgen
- Primary mechanism
- AR agonist; anabolic index low/not meaningful for muscle gain
- Primary market use
- Male infertility/hypogonadism history
Pharmacology
- Molecular weight (Da)
- 304.47
- Oral bioavailability
- Oral; clinically active but extensive metabolism
- Half-life
- ~12-13 h
- Route tags
- Route-dependent / verify
- Evidence level
- Approved/historical
- Clinical status
- Approved in some regions
- Value-for-money score
- 4 / 10
Reported protocol signal
No popular protocol verified yet; keep as reference compound until protocol signal is added.
For orientation only. See disclaimer — always consult a licensed clinician before use.
Notes
Included from MESO; not a strong structural anabolic despite being an AAS.