"i have had all 4 of my wisdom teeth removed 2 days ago. to deal with the pain after my numbing injections wore off, i was prescribed tylenol 3. when i got home, the pain from the operation was already starting to kick in, so i took one at 5 pm (which was when i got home) in hope of relieving my pain before trying to get to bed. i sat there in pain for the next 12 hrs, taking another pill every 4 hrs, and not a single bit of pain relief or drowsiness came to my aid."