prostate cancer has rapidly spread to both hips, both thighs and various spots in spine. Long acting morphine has been prescribed along with oxycode 10mg as needed for breakthrough pain. What are the ill effects of the patch---what is the success rate? My husband should not have to suffer from pain which keeps him from being able to enjoy life. This cancer has metastisized rapidly as it was not discovered in the early stages. He has undergone radiation twice and is now going through chemo therapy.