to make this short i was in a accident where my knee got totally fucked n i had to have surgery now im prescribed 3. 10mg percocet and 1 norco 10mg for breakthrough pain a day. well i been on them for a little over a year now. the percs were getting me so messed up in the beginning i didnt like it and had to cut my dose in half to 5mg at a time. i take my dose everyday on time. i dont abuse them. so my question is how come they quit working for me? im not taking alot or mixing any other drugs when im on them.. i been taking my 9am perc and not feeling a thing not even working for pain. another at 3pm still dont work. another before bed at 9 and still nothing but slight energy boost.. on the other hand though i take my norco 10mg and im good, pain free, worry free, happy and no probs.. just like the percs use to make me feel.. why did the percocet all of a sudden stop working for me? i had no probs before with them up untill a week ago i noticed they wernt working no more..