Hi all hope this helps. Ive smoked 30 a day for over forty years. I've quit twice properly with champix in the past several years. They do work and how they do this is by blocking nicotine receptors in your brain from getting nicotine hit. So no reward chemicals for smoking on them. What I've learnt in the past is that it's best quitting around day 13. The only withdraw you get from then on is psychological/habit. Always take with food otherwise terrible nausea. I did have very vivid dreams. Mostly nice one's. Had been off several months and never ever craved 1. My downfall was getting drunk and just having a cpl cigs with the beer.thinking ide be ok. Big mistake. worst thing I done as I unknowingly reactivated the nicotine receptors and was back smoking each time. So yes they should work for most people, certainly do for me. Just beware of ever having 1 cig thinking it will be ok because it won't all you do is reactivate them nicotine receptors and that's you back on tabs. Taken me 2 attempts to realise this so I don't plan even having a drink this time for a long time as its fatal having a few beers cos you think just 1 will be ok but it won't. All that happens is you reawaken the nicotine receptors and your back to square 1. Hope this helps others. You can do it if I can...
And also finish the course as that's most important thing shuts the nicotine receptors well done after 12 weeks.