I quit using the e-cig and Chantix. I quit twice with Chantix - quit once for a year, then relapsed for a year, then quit again. The first time I took it I had crazy, lucid nightmares. These were very frightening and abnormal dreams, like nothing I have eve experienced. I think of it almost like psychosis in my sleep. And it got to the point that I couldn't tell if I was awake or asleep, so I had to stop it after a few weeks. But it worked for making me not want to smoke. The second time I had one nightmare, but it was nothing nearly as bad as the first time. I think the difference is the second time I took it I was also on an antipsychotic (seroquel). I took it for a couple of months, and used the e cig for about 6 months. I quit about 18 months ago, and it's going well - definitely feel healthier.

Originally I quit smoking 13 years ago, and stayed quit for 8 years. That time I took Zyban, which is just wellbutrin. It helped somewhat, but the withdrawal was pretty terrible. But no nightmares.

Chantix can cause mood episodes, so discuss it with your pdoc, but quitting smoking is the best thing you can do for your health, so for me, it was worth the risk.