Hi My Name Is Joe I Have Been Goin To

Hi my name is joe I have been goin to pain management for 7 years now I have lower chronic back pain and had a failed back surgery. I have been on Roxicodone 30 mg 4 a day and lowered me from OxyContin 60 mg to 40 mg. Been through this twice and the 40 mg do not work. But he doesnt want to hire me and I'm running out of my meds. Is there any other type of long lasting medication I could be on instead of OxyContin.