alot of meds from pain management doctors.When the oxycotin (1 every 12 hours..10 mgs.) and the tramadol(1 every 6 hours up to 3 a day) stopped working my doctor switched me to percoset 7.5 every 8 hours and gabapentin 325 three times a day. The percoset works really good for 4-4& 1/2 hours then the pain starts up and soon I am miserable. What do I do know??? Can I take anything else???