Testanon 250 mg/ml is a long-acting injectable formulation of Testosterone Decanoate, developed by Nuvista Pharma Ltd. It is used in the treatment of male hypogonadism—a condition where the body does not produce enough testosterone. This includes primary and secondary hypogonadism due to various causes such as castration, hypopituitarism, and certain types of infertility. Additionally, Testanon is indicated for masculinization in female-to-male transsexual individual