pain
"I've just recently had 19 teeth pulled all at once and absolutely couldn't sleep at night. I was given 750 mg of Vicodin (Hydrocodone) and now I can sleep.  It takes the pain away but only lasts for 3 hours at the most.  I sometimes get a headache from it and have suffered from constipation.  All in all, the relief you feel from severe pain is well worth it. Do not drive while taking this medication. It makes some people sleepy and slows down your reaction time."