I to Have DPU. Have been through the whole gambit of medications to no real avail. Prednasone is the only thing that removes my symptoms. Between 40- 60 mg daily seems to be the dosage that relieves my symptoms. I am 68 years old. I have told my Doctors that the quaility of my life now is more important than the quanity. That means for now a prolonged use of Prednasone. I've read all the drug company disclaimers about the use of Prednasone. I'm looking for the actual clinical studies for the use of the drug. I want to make as informed decision as possible. Can anyone help? Thanks