I was just wandering if combinding oxycodone with phenergran would extend the half-life of my oxycodone.The pharmacist said that it is often prescribed with demerol but just wondering if anyone can tell me if it wouuld work with any other opiods besides just demerol.Thanks I know it is an odd question but if i could make my pain medicine last any longer than it is already lasting now.That would be so great.Thanks :)