Definition

A drug that contains the active ingredient abiraterone acetate and is used with methylprednisolone to treat prostate cancer that has spread to other parts of the body. It is used in patients whose cancer is castration resistant (has not responded to treatments that lower testosterone levels). Yonsa lowers the amount of androgens (male hormones), such as testosterone, made by the body. This may stop the growth of cancer cells that need androgens to grow. Yonsa is a type of antiandrogen.