I have had Arachnoiditis for twenty years. I have been taking Oxycontin ( 720 mgs a day and have been using Oxynorm for Breakthrough pain 140mgs a day... My GP and a Dr at a hospice decided to put me on Methadone a few months ago. This was not as problem I take 20mgs 3 times a day. I take Tramadol 100mgs and Paracetamol 1000 mgs 4 times a day for breakthrough pain.They don't work. What other drugs for breakthrough pain would you suggest. As adhesive arachnoiditis is progressive. I am going mad