Categories Current Searches Radium Ra 223 dichloride Uses, Side Effects & Warnings – Drugs.com Post author By Mike Nova Post date June 2, 2026 What is radium Ra 223 dichloride? Radium Ra 223 dichloride is used to treat prostate cancer that has spread to the bones and cannot be treated with surgery. Radium Ra 223 dichloride may also be used for purposes not listed in this medication guide.