Nandrolone decanoate is an esterified anabolic-androgenic steroid based on nandrolone. Its decanoate ester contributes to prolonged release after intramuscular administration.

The supplied product identifies a 250 designation. Nandrolone can suppress endogenous testosterone production and influence fertility and reproductive hormone signaling. Additional concerns may involve cholesterol changes, fluid retention, hematocrit, and cardiovascular health.