I was in a terrible car accident in 94 with multiple injuries including a closed head injury. It took me years to regain my speech and make up for the deficiencies from the brain damage. I was given Demerol 100mg injections for the excruciating headaches which debilitated me daily. Most days it would take the edge off,some days it could not be controlled and that meant a trip to the ER and a special rx cocktail to knock me out for a couple days . These went on til 2014. I had a hip replacement and contracted pneumonia afterwards along with blood poisoning. I recovered from all that to find I now have kidney disease! Now I can t take demerol ,(it filters through the kidneys). The Doctor put me on Dilaudid injection (4mg). It doesn t do the job like the demerol did. Is there anything you could suggest that is comparable to the demerol without hurting the kidneys? Thanks in advance for your help. M. Mason