I finally took the time to register, usually find my way here anytime I am looking for answers. I have chronic full blown hep c and have had a liver transplant and have since found myself with numerous health issues. Oddly enough for pain meds I take Opana 10 mg IR or Dilaudid 8 mg and out of all choices these seem to be best for my liver long term, easiest to metabolize. I do research other options and methods of use as well. Will be greatful for any help I am able to finds here as well as hopeful I may to be able to provide some answers for others. 
Let us know here if you have any questions about the board at all.