Varenicline
"I smoked for 20 years and knew I needed to quit for my kids, so I decided to try Champix.  I quit Oct 15, 2015 and after 3 months I can honestly say that I have not had one craving since then.    Also, I did not have any side effects at all (vivid dreams etc).  I have been off Champix for the past 2 weeks and again there have been no cravings.  Champix has helped me quit the habit for good."