Tramadol
"I have been on so many muscle relaxers and pain control medications while waiting for hip replacements that it was unbelievable. About four years ago my Doctors (Air Force Type) put me on a steady regimen of tramadol 50mg tabs up to 300mg per day dependent on pain and I have been able to completely manage my pain and even walk in short bursts (Sometimes with a cane but that's still walking in my condition) it is an amazing revelation."