I was fatigued (another possible effect of thyroid) and the
chantix gave me more energy. I eased into the
chantix and when I was near the end of the treatment, I weaned off slowly.
My husband also took Chantix, but right after he started, he read some of the articles about some possible side effects and he panicked and in spite of my warnings, stopped it cold turkey. At the same time, he quit taking his anti-depressant and I can't describe the problems he had.