It is an injectable formulation of the anabolic steroid drostanolone enanthate. It is a derivative of dihydrotestosterone (DHT) characterized by the presence of the enanthate ester, which gives the substance a long half-life and slow release in the body. In the context of sports pharmacology, it is valued for its moderate androgenic properties and ability to promote muscle hardness and density without causing water retention, since the molecule does not undergo aromatization (conversion into estrogen).