The only behavior you are likely to modify by taking Chantix for "other stuff" is that it may make you psychotically suicidal and/or homicidal, and the FDA may *enjoy* saying some of this is due to quitting. It's not. It also will not address "other stuff" it specifically targets nicotinic receptors in the brain, keeping them full and satiated, so that cravings are alleviated (supposedly) and if you smoke tobacco you *will not* feel anything, including satisfaction which does tend to be accurate for the most part.
It does work for some people, but I prefer not to be playing Russian Roulette with my harm reduction products, and it clearly does other stuff in the brain, as well, so IMO it's one of those "dirty drugs" where no one knows what the hell else it's doing (nor cares to investigate, since it's a smoker's "product.") I have literally no clue why it is still on the market and being prescribed, unless some doctors are sadistic in their feelings toward smokers. One of the nastiest drugs on the market, I'd rather swallow Haldol (the oldest typical antipsychotic on the market and it's AWFUL side-effect wise) than take Chantix. Seriously, for me it would be like playing Russian roulette with a FULLY LOADED gun. TY all the same, Big Pharma, but no thanks.
Anna
I was really trying to stay clear, but there is quite a collection of information that Chantix, while far from a perfect drug, is not associated with a higher risk of suicide than other NRT treatments. This includes a British study of 51,000 people who used Chantix compared to 100,000 people using regular NRT and found no difference in:
However, these findings were not unexpected:"there was no evidence of an increased risk of suicide or attempted suicide (odds ratio 1.67, 95% confidence interval 0.33 to 8.57), suicidal ideation (0.58, 0.28 to 1.20), depression (0.96, 0.75 to 1.22), irritability (0.98, 0.81 to 1.17), aggression (0.91, 0.52 to 1.59), or death (1.05, 0.47 to 2.38) in the varenicline users compared with placebo users."
Risk of neuropsychiatric adverse events associated with varenicline: systematic review and meta-analysis | The BMJincreased risk of sleep disorders (1.63, 1.29 to 2.07), insomnia (1.56, 1.36 to 1.78), abnormal dreams (2.38, 2.05 to 2.77), and fatigue (1.28, 1.06 to 1.55) but a reduced risk of anxiety (0.75, 0.61 to 0.93).
Meanwhile, in The Lancet (BTW, both of these journals are considered top tier and frequently used here to support vaping as safer than smoking, they found reduced risks for problems like stroke and heart failure in those who used Chantix compared to NRT (patch, gum stuff)
http://www.thelancet.com/journals/lanres/article/PIIS2213-2600(15)00320-3/abstract. Varenicline was associated with a significantly reduced risk of ischaemic heart disease (HR 0·80 [95%CI 0·72–0·87]), cerebral infarction (0·62 [0·52–0·73]), heart failure (0·61 [0·45–0·83]), arrhythmia (0·73 [0·60–0·88]), depression (0·66 [0·63–0·69]), and self-harm (0·56 [0·46–0·68]).
Now those were observational and retrospective studies. Meanwhile, in a randomized, double blind study including placebo involving 8,000 people, they also split it roughly 4,000 folks with psychiatric problems and 4,000 without a psychiatric history, they found:
. In the non-psychiatric cohort, 13 (1·3%) of 990 participants reported moderate and severe neuropsychiatric adverse events in the varenicline group, 22 (2·2%) of 989 in the bupropion group, 25 (2·5%) of 1006 in the nicotine patch group, and 24 (2·4%) of 999 in the placebo group.
And:
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(16)30272-0/fulltext. In the psychiatric cohort, moderate and severe neuropsychiatric adverse events were reported in 67 (6·5%) of 1026 participants in the varenicline group, 68 (6·7%) of 1017 in the bupropion group, 53 (5·2%) of 1016 in the nicotine patch group, and 50 (4·9%) of 1015 in the placebo group.
That is not to say it is without side effects. Nothing, including vaping, is without side effects. But in fairness, while one's own reaction to a medication matters, it remains anecdotal. It is only when the data is collected and analyzed that correlations and conclusions can be reached.
Personal experience is meaningful but needs to be tempered by actual testing and observation. Otherwise, we sorta look like the folks around who say vaping is wore than smoking when the data is piling up to show the opposite.
tl;dr things may be more than just anecdotal "I read it here" sort of stuff we generally have negative reactions to.