Suggest An Alternative Pain Medication For Hydromorphone

Thank you so much for being available to talk with me. I have a joint disease that requires me to take pain medication as a part of my pain management plan. I have been successfully using these medications to help with the severe joint pain so I can live my life. However, after being on a medication for some time, it becomes less effective and my doctor and I have to go back to the drawing board when this happens and change pain medications. It seems my body has learned how to process the medication rendering it ineffective. I take a long acting and a short acting both. What are the long acting stronger pain medications similar to Hydrmorphone and Dilaudid? I take higher doses of both daily, and have for 6 years with my disease, Stills disease. It allows me to function, walk, take care of my son and do light exercis like swimming.