Hydromorphone
"Was prescribed 2 mg tablets to be taken 1 or 2 pills every 3 or 4 hours after my complicated rotator cuff surgery which involved reattaching three completely torn through tendons. The pills were completely ineffective. They did nothing for my pain. I quit taking them after the first day.  I could not tell that I had taken anything. The circulating ice water machine they send you home from surgery with and regular Advil provided much better relief."