smoking cessation
"Have smoked for 12 years,  I was smoking a 40 pack (Australia) in less than 24 hrs.

I went on Champix and after 2 weeks I was a non smoker and no side effects. 

Normally I'd be clawing at the walls of my house if I didn't have a cigarette for a hour, now my cigarette addiction is comparable to eating chocolate, I'd like some but I can go without.

I also have ADHD which makes smoking a lot more pleasurable and a lot more addictive."