Testosterone isocaproate

Testosterone isocaproate is an ester of the androgen and anabolic steroid (AAS) testosterone which was first introduced in the 1970s. It is a prodrug of testosterone and is considered a medium- to long-acting form of testosterone. Testosterone isocaproate is marketed in many countries throughout the world, including under the brand names Sustanon and Omnadren.

Chemistry

Testosterone isocaproate is a synthetic anabolic steroid and a testosterone ester. It is or has been a component of Sustanon, along with testosterone propionate, testosterone phenylpropionate, and testosterone decanoate. Testosterone isocaproate is the isocaproate ester of testosterone, or the isohexanoate ester of testosterone.

Pharmacology

As a prodrug of testosterone, testosterone isocaproate is considered to be a natural and bioidentical form of testosterone. It has an elimination half-life of about 7 to 9 days in the body, which makes it a medium- to long-acting ester.

Society and culture

Testosterone isocaproate is marketed in many countries throughout the world, including under the brand names Sustanon and Omnadren. It is available as an oil solution for intramuscular injection.

See also

• List of androgen esters
• List of testosterone esters

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  Chemical structure of Testosterone isocaproate
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  Ball-and-stick model of Testosterone isocaproate