I was on Oxycodone and OxyNorm for 7 years. Increasing the dosage to help the pain, in the end it had not effect, I was just hooked on the drug.
I went to see a Rheumatologist back in October 2012 and he informed me that any Opioid was no good for people with Fibro. I was told that Fibro affect the nerves and Oxycontin/OxyNorm has no effect on the nervous system. It may feel like the pain is in the muscles, it is just the way the body translates the pain.
It took me 6 months to clear the drug from my system, coming off was terrible. The withdrawals made me want to climb the walls, cold turkey is terrible. So if you are on it do not stop taking it, see you GP for help. I wish I had never taken this drug, it changed me, my moods were terrible, I became a horrible person, aggressive and very negative. Now that I am on something completely different I have my life back, I laugh and see the funny side of things again. I am amazed how a chemical can change who and what you are.
I watched a TV documentary from the BBC about this drug, it was very informative. If you want to know more do your research, there is plenty of info on the web. Do your homework, it is amazing what you can find out.
I wish you all well and talk to your GP or pain consultant/Rheumatologist before coming off any medicines.
Regards your friend.