Levorphanol
"A very effective pain medicine that you don't feel you have to go reaching for it all the time to get relief. I mean you can strictly adhere and take this responsibly per doctors directions. Not many pharmacies carry it, if at all so you will have to order it. That means bringing in your prescription to order it. It may take awhile but it is worth it, for severe pain. Just stick with a good oxycodone for other types of pain. This Levo-Dromoran lasts awhile and too much can cause respiratory depression."