Hi again. I haven't heard of Nucynta but I believe there are different drugs here than you have there. I was on Tramadol and my doctor said to take the Tramadol for a couple of days until the butrans got into my system then to stop taking them as you shouldn't take them at the same time. I did this and had a week of flu like symptoms before stabilising. Doctor also prescribed anti sickness tablets but I rarely used them. They gradually increased the dose to 20. I do get occasionally very tired and feel they do last 6 days rather than 7 but so far they have changed my life. I have been on my current dose since January 2013. Occasionally I take additional paracetamol and ibuprofen but its much easier to manage now. Fingers crossed for you.