Fentanyl
"I was on 25mcg/72 hours (then every 48 hours) for RSD/CRPS along with Norco for breakthrough pain. This medicine worked great for about the first month or two then stopped. For some reason my body stopped processing it properly and it quit helping me at all. And the side effects were awful (namely weight gain and HORRIBLE sweating!) Also, getting the patches to stay on, even with the overlays (sent free from Mylan- the brand my pharmacy stocked- just call Mylan to get them) was difficult, especially with all the sweating. Happy to be getting off this. Hoping to find something else that will work without the side effects of Fentanyl."