Methenolone Enanthate

Primobolan Depot · Primo

Anabolic Steroid aas IM Case Studies / Guidelines

Half-life

5 days

Time to Peak

2 days

Steady State

~25 days

Bioavailability

100%

Dose Range

200–800 mg

Frequency

Weekly

Overview

Long-acting methenolone ester. Manufactured by Schering/Bayer as Primobolan Depot in limited markets (Germany, Turkey, South America). Not available in US. Considered one of the "safest" AAS with mild androgenic and no estrogenic effects. DHT derivative — does not aromatize. Expensive and frequently counterfeited. Harm reduction: Relatively mild side effect profile compared to most AAS. Still suppresses endogenous testosterone — PCT required. Monitor lipid panel. Due to high counterfeit rate, bloodwork verification of actual methenolone levels is advisable.

Mechanism of Action

DHT derivative (1-methyl-5alpha-dihydrotestosterone). Does not aromatize. Mild anabolic with low androgenic activity. The 1-methyl group provides metabolic stability.

Dosing Information

Route Dose Range Half-life Tmax Frequency
Intramuscular (IM) 200–800 mg 5 days 2 days Weekly, 2x weekly

Storage & Handling

Room temperature — Oil-based injectable. Pharmaceutical product in some markets; widely counterfeited.

Used in Regimens

1 regimen

Women's Primobolan Cycle

Methenolone Enanthate (Primobolan Depot) cycle for women. A mild injectable AAS used by women for lean muscle and performance. Lower virilisation risk than most injectables. Arnold Schwarzenegger's reported favourite — widely regarded as one of the safest AAS for women.

Primobolan Depot female protocol 25–75mg/week IM.

12wk Harm Reduction aas
Primary

Data Sources

  • Community Llewellyn's Anabolics; Schering product data (historical)

Related Tools

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Doseline provides informational tools only. It is not a medical device and does not provide medical advice. Always consult a qualified healthcare provider.