chronic pain
"Have been taking   Er 120mgs 3x a day, with
60mg. For break through pain. I suffer from chronic spinal stenosis with acachnoditis. That being a progressive disorder.
After many different Doctors rx not helping' went to pain management clinic. I was inpatient for 4-5 days till they finally found right drug & most important dose. I Do take 60-90mg for breakthrough pain. It works so well. Bless those Dr's that took the time & effort to find answers. I  am on same dose for awhile now.  The only side effect is bad constipation. I  use a stool softener . What a relief to finally have a decent quality of life finally."