smoking cessation
"I tried Zyban twice after smoking for about 20 years, a pack a day. 

The first time, I could feel my urge to smoke lessening, but after about a week on the medicine, one day I felt exhausted.  I slept for 14 hours; the next day I woke up and felt so, so  down and depressed.  Since I had done my research prior to taking this, I knew what it was.  I called a doctor, and stopped the medicine.

A year later, I decided to try again.  This time, I had no such thoughts.  After about 5 days, I felt the urge to smoke going away, and on day 7, I lit one up, wondered why I was doing this, and put it out. Never looked back. I stayed on Zyban for about a year. That was two 1/2 years ago. No cravings.  No cheating.  Amazing."