i tried chantix for the third time back in June. never the less, i had to put my quit on hold. but, my experience with chantix this time sucked. the night mares never stopped, i had an upset stomach the entire time. i think that medicine is a once in a chance thing. it either takes the first time or you're bumming. remember how it didn't seem quite the same on the second time. good luck though, maybe it was just my system that hated it. Pam