Well, I'll add my two cents as a prior Chantix user...
I tried it on
three seperate occasions and it worked all three times. I just couldn't take the side effects, and the cost. I know it doesn't cost more than cigs, so don't send me messages regarding calculations, it wasn't that sort of issue. It was coming up with it all at once when it was time for the new script. Anyway...people with a history of depression, any suicidal thoughts whatsoever, anxiety disorder, and such shouldn't be allowed to take it. It worsens existing depression and can cause it if you don't have it. I take Wellbutrin everyday, and did during each time I took Chantix, and still suffered disabling and severe depression from it. And my doc even upped my Wellbutrin temporarily to compensate, which worked for a week or so, but not long term. And it wasn't safe to keep the Wellbutrin at the max for very long.
If you are determined to smoke, until "it cures you", it won't work. I've heard so many people say that it made them smoke more. Well that's because they couldn't get any satisfaction from the nicotine they were taking in because the Chantix blocked those feelings so well. So they kept smoking more and more to get it, and it just snowballs. You physically no longer crave it, but psychologically, you still want all the good feelings cigarettes gave you and the only way you know how to get it is by smoking. But physically and mentally, the brain is blocked from feeling any of it. Very frustrating, so you keep lighting up to get something.
When I stopped each time, the depression was so bad, I became suicidal, and had to stop taking it, which took a while to get out of the body altogether. It just wasn't worth it in the end. And then even more depressing to start smoking again!! Had it not been for the side effect of the depression, I would probably still be on it. It worked great for me, but the sadness and inability to function normally left me no choice but to stop it. After taking it the first two times, I thought I was "well prepared" to take it a third and last time, knowing fully what to expect and toughen myself up for it. Well, that just didn't happen. It was a big mistake on my part to think I could combat the effects of a medication on my brain. Some things you just can't control. I'm so glad I found ecigs. It saved me from even more depression at being a life long smoker and unable to quit on my own. And unwilling to as well. And with my history of chronic depression, trying to quit without help wasn't well advised.
I do know of one person at least who was able to quit and stay quit while taking the Chantix and hasn't started smoking again, and it's been several years since she took it . She only experienced the dreams and the nausea. No depression.