Oxymorphone
"This is the best pain medicine I have ever used, and I have used many.  I have a 4 level fusion in my neck that didn't fuse, and it was attempted twice.  Lower back surgery as well.  Broken hip, bad left knee, bad left ankle.  I was paralyzed briefly in an atv accident back in '01.   Hydrocodone and oxycodone only lasted 2 hours or so.  The pain was about to disable me.  This drug is simply amazing. I do not get "high", or feel a "buzz".  No side effects, but possibly some impotence.  Taking 30mg every 12 hours, with a 10mg dose 3 times a day for "breakthrough pain".  After 8 hours or so, the 30mg wears off rather quickly.  Many pharmacies don't stock opana, and I have trouble getting refills when out of town.  Keep that in mind."