"after being on various hydrocodone, oxycodone, and morphine drugs for a couple of years with no pain relief i was prescribed dilaudid (hydromorphone).  i was amazed at how well it worked to eliminate 100% of my back pain.  however, i quickly built up a tolerance to it and within a year i went from being prescribed 2mg 3x/day to 8mg 3x/day (very few pharmacies even have 8mg dilaudid).  "