Varenicline
"I went to the "cessation adviser", from my local GP's. He was great, he ran through all the alternatives, I liked the idea of Champix as it wasn't a nicotine replacement! 

It's been great, I've got to admit that I did "double up" on the dosage for the first few days. I wouldn't do that again! But so far I'm 8 days in, 2 days not smoking. 

I was going to quit this Monday, but had my last cigarette 8am last Saturday Morning! It's Sunday evening now and I'm still okay not smoking! 

I had a few vivid dreams yesterday morning, but so long as you realise they are dreams, and only strange dreams brought on by this drug, you can handle them!"