Pain
"Have been on Fentanyl 50 mcg patches for 3  years.  Tried name brand Duragesic-worked best, Mylan-stuck best/less relief, Watson and Sandoz generic worked similarly, but Sandoz do not stick as well.   Watson seem to work best in the first 24 hrs, while Sandoz lasts longer.  To keep from falling off: 3M Tegaderm film transparent dressing.  4inch x 4 and 3/4 inch size works best for 50mcg  size patches.  Tegaderm patches usually available from the pharmacy counter-no script needed.  Put over the patch when you first apply it - you will survive hot showers, etc.  Menopause/ hot flashes-another story, as the perspiration is under the patch which inhibits its ability to osmose the medicine.  Best to change every 48-60 hrs for best pain relief."