XTANDI is a prescription medicine used to treat men with prostate cancer that: no longer responds to a hormone therapy or surgical treatment to lower testosterone, See how XTANDI®, an androgen receptor inhibitor, treats certain types of advanced prostate cancer. See Important Safety Information, Risks, and Benefits., Find answers to frequently asked questions about XTANDI® (enzalutamide). See Important Safety Information, Risks, and Benefits., Learn important info about taking XTANDI®, including what to do if you miss a dose, how to take the capsules or tablets, and more. See Benefits, Risks, and Important Safety Info., Find resources for XTANDI® patients and caregivers, such as the doctor discussion guide, FAQs, clinical glossary, and more. See Risks, Safety Info, and Benefits., Learn about XTANDI® (enzalutamide) financial assistance resources at XTANDI® Support Solutions™ to find copay, cost, & savings information for eligible patients. See Safety Info, Risks, and Benefits..