Fentanyl
"My son took every pain pill there is for his chronic pain. Then a doctor tried the 25 size patch on him. It was not enough. We went to the 50 size and it did the job. He was a world of better on the patches. He felt better all the time and was not getting constipated as he did on the pills. He never feels euphoric on the patch. The only complaint was that the patches wear off after the second day.
 I called Mylan Laboratories and discussed the patches with the Information person. She said that a lot of patients absorb the medicine quicker than others and those patients change the patch every other day. We are now using a 25 size and changing it every other day."