Varenicline
"I asked my Dr. 2 years ago to prescribe this and she didn't want to. She put me on Wellbutrin instead. Well it did absolutely nothing for quiting smoking. Went back last week to see about getting Chantix and she did prescribe it. I am simply amazed how this is working! I've been smoking for 30 years and never thought it would be this easy. The only thing I have to do  when I start thinking about smoking is to remember why I'm quitting. Which is a lot right now but completely manageable. Wish she would have prescribed this when I asked 2 years ago."