 [ Symptoms ] my body has not been feeling good at all what can be wrong [ Disease ] there is no good answer to your question because it is a bit subjective both oral percocet oxycodone apap and demerol meperidine are narcotic pain relievers because each person is body responds differently to different substances one person may feel oxycodone is more effective than meperidine or the other way around in this case that person may describe oxycodone as stronger than meperidine however it is not a matter really of one being stronger than the other it is a matter of which works best to control pain in any given individual i hope there was not a bet riding on this take care