Description
Overview
DHT-derived oral; not 17-aa (so relatively low liver stress); binds SHBG raising free testosterone and has anti-estrogenic activity; weak anabolic.
Composition / Profile
- Active compound: Mesterolone (Proviron)
- Drug class: Oral androgen (DHT-derivative)
- Pack / dose (this listing): 25tab / 50mg
Format
- Oral tablet
- Pack / dose: 25tab / 50mg
Dosage & Usage Patterns
- Bodybuilding (commonly cited): Commonly cited: ~25–50 mg/day as an ancillary; sometimes 50–100 mg/day; rarely used as a primary anabolic.
- Clinical / general reference: Individual; often used as an ancillary rather than a primary anabolic.
- Half-life: ~12 h.
- Protocols vary by individual, compound stack, and bloodwork — figures above reflect community-reported patterns, not medical recommendations.
Effects
Reported benefits (commonly cited)
- SHBG lowering increases free testosterone.
- Mild anti-estrogenic effect.
- Androgenic hardening.
- Libido support on cycle.
Reported side effects
- Androgenic (hair loss, acne), can worsen lipids.
- Low hepatotoxicity relative to 17-aa orals.
Key Interactions
- Lowers SHBG.
- Mild anti-estrogenic.
- Androgenic.
Post-Cycle Considerations
- Not strongly suppressive alone but not a recovery agent.
Precautions
- Sometimes wrongly used as a standalone AI.
- It is not a substitute for a true aromatase inhibitor.
Common Misconception
Myth: Proviron is an AI.
Evidence: it has anti-estrogenic activity but does not inhibit aromatase the way anastrozole/exemestane do.
Related Categories
- Browse more in Oral Steroids → Mesterolone (Proviron).
- Related: Post Cycle Therapy (PCT).
Storage
- Store in a cool, dry place away from direct light and moisture






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