Compounds / Anabolic / Testosterone Propionate

Testosterone Propionate

Testosterone Propionate (Short-Acting Testosterone Ester)
AnabolicFDA: FDA-APPROVED (hypogonadism)WADA: PROHIBITED — Category S1

Overview

First injectable testosterone used in clinical medicine. Historically important. Now largely replaced by longer esters for TRT due to injection frequency. Useful where rapid clearance is desired.

Mechanism of Action

Propionate ester — ~2-day half-life. Fastest clearing injectable testosterone ester. Requires frequent injection to maintain stable serum levels. Same AR mechanism as all testosterone esters. Historically the first pharmaceutical testosterone used clinically (1930s).

Molecular Profile

Molecular weight
344.5 Da
CAS number
57-85-2

Key Research Findings

~2-day half-life; frequent dosing required; first pharmaceutical testosterone; rapid clearance.

Published Research

J Clin Endocrinol Metab (1986)
Fujioka M et al. Pharmacokinetic properties of testosterone propionate in normal men
View source

Related Anabolic Compounds

Testosterone CypionateTestosterone EnanthateTestosterone SuspensionSustanon (Testosterone Blend)Nandrolone DecanoateNandrolone Phenylpropionate
Clinical Guidance

Research data is not a treatment plan. If you are considering Testosterone Propionate, the questions that matter are whether it suits your history, your labs and your goals. That is a conversation with a licensed physician, not a lookup.

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