"i have been on the fentanyl patch for 5 years. started on 50mcg but am taking 125mcg now. other then having nausea for the first few days whenever they increase the dosage it works fine. for breakthrough pain i use 25mg liquid morphine and it works. from what my doctor says i&#039;ll always need to be on the patch because i have cerebral palsy and because of my bodies spastic movements which weakens my bones and creates more pain. "