Compound Library

Oral Steroid / DHT Oral

Metenolone Acetate (Primobolan Oral)

Oral Primobolan — very low bioavailability (~3%) as first-pass metabolism is high. High doses required for any effect. Injectable form far more efficient.

Build protocol outline Open dose calculator TNHL ebooks
Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.
Reference dose50–150 mg/day
Half-life5 hours
Risk flagmoderate
Regulatory noteResearch-only flag

Side effects and watch-outs

  • Hair loss (mild DHT activity)
  • Mild hepatotoxicity
  • Mild acne
  • HPTA suppression (mild)
  • Very poor bioavailability — most is deactivated by liver
  • ⚠️ Virilisation in women at higher doses