Ahabir 500 mg Tablet is an anti-androgen medicine used in the treatment of prostate cancer. It is used to treat metastatic castration-resistant prostate cancer (a condition where cancer does not get controlled with hormonal therapy) and metastatic castration-sensitive prostate cancer (a condition where cancer has spread to other parts of the body but can be controlled) in men. Prostate cancer is a condition that occurs when the prostate gland cells increase abnormally. Symptoms may include difficulty in urinating, pain, numbness, etc.