I have been hesitant to post this. I have been 3 long weeks with ZERO cigarettes - and totally give the credit to the Chantix. Anyone who is considering giving this medication a try - I say go for it!! I never thought realistically that after 18 years of smoking I would be able to quit, but it appears that I have managed to do it!! I didn't even choose a quit date. One night, I had a cigarette before bed and just didn't have another one in the morning. I still have about a half a pack on my front porch, but really don't have the desire to smoke at all anymore. On top of that, I haven't really gained any weight either. I am so glad I finally gave it a try.