Varenicline
"Works! Tried zyban prior to this but didn't find it effective. I picked a quit date as the medication recommended and gradually reduced smoking over 10 days while on champix. On my quit date I stopped completely and haven't had one since! Cravings still come and go but certainly not compared to a cold turkey craving. Just have to fill that spare time with something to take your mind off. The one thing about this medication is that after ingesting it, I feel quite sick after. It lasts for 10 mins or so then I'm fine. It's best to eat after food and with lots of water!"