Editorial use only Abiraterone acetate cancer drug. Box containing 500mg tablets of the prostate cancer drug abiraterone acetate, marketed under the name Zytiga. The prostate is a gland beneath the bladder in men which produces a fluid that forms part of the semen. Elevated blood levels of testosterone may increase the risk of prostate cancer. Abiraterone blocks the production of testosterone by inhibiting an enzyme involved in its formation. This leads to the death of the cancerous cells.