I have been using a pump for about 20 months. First morphine could not feel it then switched to dilaudid still nothing. Previously I had been using Fentanyl patch 25mcg/h and 4 10 mg oxycodone for many years. I get no relief from the dilaudid and I am at 1.39 mg per day after almost a year. Totally unhappy with this doctor. Had a fentanyl patch left over and it was applied and it was a miracle I felt the best I had in the last 10 years, when told doctor he got mad said it was illegal to use fentanyl with dilaudid and he could be thrown in jail, live in CT. Now I am back in hell.