Arbiraterone, often referred to as abiraterone, is a medication primarily used in the treatment of prostate cancer. It works by inhibiting the production of androgens, such as testosterone, which can fuel the growth of prostate cancer cells. Abiraterone is typically prescribed for patients with metastatic castration-resistant prostate cancer, often in combination with other treatments like prednisone. It helps to slow disease progression and improve survival rates.