pain
"I was prescribed Vicoprofen after I had some wisdom teeth surgically removed.  I have to admit, it worked great.  I was in some serious pain, and could tell EXACTLY the minute it started to wear off.  But soon as I took another, the pain was gone within minutes.

I can see where it would be habit-forming, as it does give me a warm and fuzzy feeling.  Kind of euphoric, I guess.  Just be careful and only allow yourself to take it when you really need it.

My only complaint is... yes... it does leave you a little constipated for a day or so after you've used it.  Get yourself some Dulcolax or something if you're going to be on it for any prolonged period of time."