I took the medicine chantix to quit smoking before I got married July 2007 so I wouldnt' have to worry about smoking on plane. But it made me mean while taking it and after I quit taking it 2 mos later it caused depression, extreme mood swings usually very vicious swings where I'd lash out at other people including my kids and husband. I'd hear these rants and wonder why I was saying such vicious things. It was like I was possessed. Then it cost me my marriage b/c I had a severe breakdown Dec 2007 and ended up in a mental hospital then diagnosed w/ Borderline Personality Disorder and Bipolar which I never had before. Then while in hospital my employers of 14 yrs discharged me from my job and 7 mos later I still haven't found work, unemployment exhausted and have no income at all now so I'll be losing my house that I worked so hard for, and possibly everything I own. Can't pay my bills, credit cards, electric bill ,etc.. And after I was released from hospital my husband left me b/c there were still mood swings that medicines that the hospital put me on can't cure. So I lost the love of my life and this 'so called' miracle drug destroyed my life and family. If you can quit any other way but taking this medicine do so b/c this medicine will destroy your life.