Abiraterone is a medication primarily used to treat prostate cancer. It works by inhibiting an enzyme called CYP17, which is involved in the production of androgens, hormones that can promote the growth of prostate cancer cells. By reducing androgen levels, Abiraterone helps slow down the progression of the disease. This drug is often prescribed for patients with advanced prostate cancer, particularly when the cancer has spread beyond the prostate gland. Abiraterone is typically used in combination with other treatments, such as prednisone, to enhance its effectiveness and manage potential side effects.