# Primobolan (Oral)

*Also known as: Methenolone Acetate, Primo Oral*

Oral methenolone acetate; mild, low-side, short half-life. Simple model — peak calibrated.

## Overview

Primobolan oral (methenolone acetate) is an oral anabolic steroid and a DHT derivative, the acetate-estered tablet counterpart to injectable methenolone enanthate. A 1-methyl group at the 1-position protects it from hepatic breakdown enough to allow oral dosing, while keeping a relatively mild side-effect profile. Methenolone binds the androgen receptor with low androgenic potency, which is why it is characterized as a mild, low-side cutting agent. The dataset lists a half-life of about 5 hours, Cmax near 57 ng/dL, and high nominal bioavailability (88%) at the default 50 mg dose. That short half-life means documented research protocols dose it daily, often split. It does not aromatize, so estrogenic effects are minimal, and hepatotoxicity is rated mild.

## Pharmacokinetics

- **Model tier:** simple
- **Half-life:** 0.2 days (4.9992 hours)
- **Cmax:** 56.7 ng/dL
- **Bioavailability:** 88%

## Dosing

- **Default dose:** 50 mg
- **Typical range:** 25–100 mg
- **Units:** ng/dL

## Harm reduction

- **Aromatizes:** No
- **DHT derivative:** Yes
- **Hepatotoxicity:** mild
- **Injection frequency:** Oral, daily

## Source

- **Label:** Llewellyn Anabolics (11th ed.)
- **URL:** https://books.google.co.uk/books?id=w4ZUJAdleTsC
- **Notes:** Cmax calibrated to ng/dL serum peak. Oral methenolone acetate PK extrapolated from injectable.

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**Canonical URL:** https://anabolicdex.com/compounds/primobolan-oral
**Plot:** https://anabolicdex.com/plot?compound=primobolan-oral