Fentanyl, or one brand name of
Duragesic, is quite close to the street
drug heroin as far as this is concerned. It is very hard to come off of because a patch, as you know, is designed to last roughly 72 hours, and then it stays in your system after removal for about 12 hours or so. I had a hell of a time, for sure. I am now, at 12:14 a.m., 40 days off. I swore I would not live through the w/d, and stared at a .45 readily available to me during part of that time.