Varenicline
"I started taking Chantix in March of 2009 and took it for 4 months. I didn't want to stop taking it because it worked for me on so many different levels. While on Chantix, I lost 15 lbs, quit smoking, started excesrising, quit drinking wine and had awesome dreams! I am happy to report I am still smoke free after 10 months. However, after stopping the medication I gained weight again and my dreams weren't as cool. Watch out for the first six months of hell! After that though I became normal. I have to say, Chantix is the best thing that ever happened to me."