"i have been on pain meds for a very long time. (13 years) from an injury at work.  i used to take (after years) 5 oxycontin 8 mg tablets per day which was fine until they changed the formula.  they don&#039;t really help any longer.  i have 4 herniated discs in neck and after 3 surgeries it still is not healed or healed correctly.  my neck injury causes me severe headaches as well.  i am now on 30 mg roxicodone which is wonderful for all my pain ailments however it has to be a certain brand.  if i don&#039;t have the correct brand i will get physically nauseous.  i must be allergic to something the manufacturer puts in it.  the ones that do work for me have saved my life.  i am able to function with pain relief.  my opinion they work the best."