you know, when i was taking it i found myself sort of depressed. i thought it was just me, or withdrawal. didnt really think it was chantix. anyway, i stopped taking chantix and the depression vanished within 2 days.
dont assume your moods are just you. if you are feeling suicidal stop taking the medication.
btw, when i stopped taking chantix i didn't start smoking. so i was still in withdrawal, but without chantix i didnt feel depressed (just your normal frustrations associated with quiting).
the whole point of quiting smoking is to prolong your life. its not really worth it if you end up dead trying to quit