Varenicline
"This is my 2nd round. I'm an idiot and started back a year later for the hell of it. This medicine is the best thing you can do if you want to quit. It makes it easy. I've quit every way you can and this is by far the best route. There's 2 things- Just make sure you drink a glass of milk with it, and you're going to have some crazy dreams. But that's nothing."