"i had surgery for a colon resection. i can&#039;t take hydrocodone because it upsets my stomach, gives me headaches, nausea and constipation. the morphine (patient administered pump) didn&#039;t work for me at all, but dilaudid worked wonderfully, 2 mg every 6 hours. i had no unpleasant side effects, which is very unusual for me with any medicine. i had no withdrawal problems when i left the hospital. if i ever have surgery again, i&#039;m going to request dilaudid. it gave me great relief and let me rest and heal!"