Enza 40mg Capsule contains the active compound enzalutamide, which belongs to the class of medications called androgen receptor inhibitors. It is used to treat men with prostate cancer. It is suitable for treatment in men with high testosterone, where the treatments (hormonal therapy or testosterone-lowering surgery) that reduce testosterone no longer totally cure the malignancy. It is also suitable for treatment in metastatic cases where the cancer has spread from the prostate to other parts and reacts to hormone therapy or surgery to reduce testosterone levels. It is also used in cases of Prostate cancer that is responsive to castration( surgical removal of testicles) but is not metastatic, with a high chance of metastasis and a biochemical recurrence.