I would suggest switching to a time released opiate. After you're on it for a month you can add in a very low dose of breakthrough opiate. I frankly don't understand why any doc familiar with RSD doesn't start with time released? You can take much smaller quantities this way and effectively control your pain.

You can try fenatyl but I personally hated it. It made me feel highly intoxicated. There have also been many that have OD'd on them...