Your healthcare provider will do blood tests to check your liver before treatment with Zytiga 250 mg (Abiraterone) and during treatment with Zytiga 250 mg (Abiraterone). Liver failure may occur, which can lead to death. Tell your healthcare provider right away if you notice any of the following changes: Increased risk of bone fracture and death when Zytiga 250 mg (Abiraterone) and prednisone or prednisolone is used in combination with a type of radiation called radium Ra 223 dichloride. Tell your healthcare provider about any other treatments you are taking for prostate cancer.