I'm currently trying to quit smoking and a friend recommended Zyban to me. Zyban is the equivilant to wellbutrin (an antidepressant) but marketed as a smoking cessation aid. This stuff works wonders. The second day after taking it i went from a pack a day smoker to a one cigarette a day smoker that I didn't even enjoy. Eventually I quit entirely, and felt absolutely no need to smoke. Now the bad news: when I was on this stuff it made me feel like I was going crazy. My anxiety shot up through the roof and situations where I'd normally feel comfortable felt oddly anxiety ridden. The side effects were so bad that I discontinued use of the drug and unfortunately resumed my smoking habits. I believe that everyone who wants to give smoking should give this drug a try because some people report little to no side effects and others actually feel BETTER after taking it. For readers wondering if the symptoms I experienced from Zyban were just the symptoms of nicotine withdrawal I can assure you that they differ completely. I have quit smoking cold turkey before and although I feel agitated and would kill somebody for a cigarette, I don't feel like I'm going insane like I did on Zyban.