Is demerol (meperidine hydrochloride) a good alternative to percocet for post op pain? for less respiratory depression and constipation? which one is more effective?

Both opioids: Both are effective for post-op pain. Demerol (meperidine hydrochloride) is most effective when given by injection (IM) or by IV, it is least effective taken by mouth. Percocet has risks associated with the acetaminophen content. Both can cause respiratory depression and constipation. In the hospital post-surgery, demerol (meperidine hydrochloride) would be better and controlled by staff. Outpatient, percocet would be better choice, limit dosage.