smoking cessation
"I have smoked 1/2-1 pack a day for over 30 years. In 2006, I quit cold turkey and stayed clean for 19 months before (stupidly) smoking again. I smoked until I started taking Chantix on 7/16/10.
This medicine works to quit, the desire to continue smoking stopped after about the 6th day. These are the side effects for me: I have experienced VERY vivid and some really weird/disconcerting dreams, but not what I would describe as nightmares. For about the last 3-4 weeks, I have been experiencing severe depression, but not suicidal. I have experienced depressive cycles before in my life, but this has been pretty brutal. Dizziness, nausea (taking the pill on a full stomach helps) and constipation and weight gain. To be fair, quitting cold turkey is also similar."