I am a respiratory therapist
and have been watching the wonders
of Chantix since it was developed. I have seen wonderful results in many patients. However, my husband could not take it. He became very mean and I took him off. Shortly there after, even though I was told this was not a side effect of Chantix, reports started coming out about this very issue related to Chantix. My point is, who knows? I would not think that Chantix would affect your thyroid, but everyone is different.