Hi doctor, please help me if you can,I'll cut straight to the point as I'm at a crossroad and don't know where to turn . I suffer from a few things from server arthritis in my knees etc and nerve or neuralgia in my upper abdominals from hernia surgery from mesh placement and nerve entrapment , my problem is my dependence on pain killers ie OxyContin ,they seem to have no effect for pain they just stop the terrible withdrawal simptoms if I try to not take them ,as I don't want to be on these things at all ,I've been using OxyContin for around 5 years . I have several of the side effects but the worst is constipation or total loss of bowel movement which is causing problems with back spasims etc ,please help if you can I and my family would be so grateful ,yours sincerely Brett from Australia .