Enzalutamide Uses Enzalutamide is used in the treatment of prostate cancer, polycystic ovarian syndrome (PCOS) and excessive hair growth. How Enzalutamide works Enzalutamide is an anti-androgens. It works by blocking the effect of the natural male hormones on the growth of prostate cells. Common side effects of Enzalutamide Headache, Weakness, High blood pressure, Decreased appetite, Constipation, Back pain, Hot flushes, Joint pain, Musculoskeletal (bone, muscle or joint) pain, Diarrhea, Upper respiratory tract infection, Insomnia (difficulty in sleeping), Anxiety, Blood in urine, Fall, Fracture, Taste change, Breathlessness, Weight loss Disclaimer The content on this website is only for informational purposes. Please take advice from your doctor or healthcare professionals. Do not self-medicate. Consult with your doctor before taking this medicine.