Varenicline
smoking cessation
"Got to give it a 10 as it achieves the wanted result, rating it on side effects would be nil which would be unfair and not constructive to a survey.  My 3rd attempt on Champix, the 1st two attempts failed due to my own silly fault, being bored and having an overwhelming desire to be naughty. So this time I'm keeping busy and find it a lot easier. Side effects are all well documented and trust me I have thelot. Stools the size of Manchester alternating with a spontaneous tsunami and dreams so vivid I could write a novel each morning, being only a couple of a whole list of effects. Nothing I was not expecting or that can't be endured for the sake of being smoke free after 45 years. Good luck to all on Champix."