Once you’ve binned the cigs, you’ll need to bin the Champix – and the withdrawal symptoms of that are pretty similar to the withdrawal symptoms from stopping smoking. Insomnia, strong physical cravings, the inability to handle even the slightest irritation without flying into an Yngwie Malmsteen-esque “fockin’ fury” (linked MP3 NSFW)… better than smoking, I know, but it’s still bloody annoying.