pain
"I have been on Opana 20mg ER for almost a year now.  I changed to Opana as my insurance would no longer cover the Oxycontin.  It took my doctor almost 6 months to figure out a dose that was acceptable to me. Aside from occasional head sweats I like the Opana a lot.  Every once in a while I experience night terrors, but do not know if they are related to the Opana or not.  As far as my pain is concerned, they seem to do the job well, and I do not get the side effects that I got with the Oxycontin."