Despite the fact that Chantix can have mild side effects on a minority of people, the overall risks of taking Chantix are extremely low, especially when compared with these minor risks to the high risks of smoking. Each person has a different body chemistry and will have varying experiences, but if you are a smoker who has tried and failed numerous times to break free of nicotine, even if you’ve been smoking for decades, Chantix will dramatically increase you chances of quitting. But remember, Chantix can cause severe depression and you could end up in court fighting Chantix lawsuits for compensation on the death of a loved one.