"after surgery, i was given dilaudid iv. i had never taken this pain medication before and it was the worst experience in the recovery room. it did not stop my pain and i had several severe side effects from it. i was in recovery for 7 hours until we demanded a different pain medication to manage my pain. i&#039;m glad for everyone this medication does help, but for those out there like me, whom it does not work on, take my advise; if you start to have side effects and the pain is not going away, you need to switch to another pain alternative that works with your system. what should have been a 2 hour recovery lasted way too long. "