Due to constant back pain,I have taken hydrocodone for 2 yrs. It stopped working.I had back surgery in August 2013. 2 mos. prior to surgery and now at 1 month post surgery, I have been using fentanyl pain patch (12 mcg). How do I discontinue the patch with minimum withdrawal? The surgery has corrected the problem and post op pain is diminished. I have used hydrocodone for occasional pain very infrequently and want to quit that as well. I had a bad respiratory response post op while still in hospital because all drugs were discontinued except oxycodone. I complained that I couldn't breathe and lips turned blue. Quitting Fentanyl and hydrocodone scares me because of withdrawal effects.