"had surgery and was given nubain in iv while at the hospital recovering  when dilaudid wasn&#039;t working. it un-did all the previous pain meds within 10-15 min and did nothing in their place! i could feel everything as if i was on the surgery table freshly opened. the pain caused me to go into a slight shock rrom the intensity. i had a to be put on oxygen for a few hours and back on dilaudid. never ever again."