Fosfestrol

Fosfestrol is a synthetic anti-androgen medication primarily used in the treatment of prostate cancer. It is a water-soluble form of diethylstilbestrol and acts as an estrogen, reducing testosterone levels in the body, which helps to inhibit the growth of hormone-dependent prostate tumors. Fosfestrol is administered intravenously, allowing for rapid achievement of therapeutic concentrations in the blood and tissues. The use of this medication helps to reduce symptoms and improve the quality of life in patients with advanced prostate cancer.

Wikipedia page List of medicines with this active substance