I was on oxycodone (5mg-2 every 4 hours) for 7 weeks following bilateral knee replacement. I turned anexoric immediately, lost 20 pounds in 4 weeks, had rash, pounding heart, dizziness, severe constipation severe dry mouth, and digestive issues. It took months to recover, and I still have digestive issues as well as dry month -- I have been off for 5 months. Will these issues ever resolve or has someything permenant happened to me? Any help would be appreciated!