or other mental health problems, which could get worse while taking chantix. don t take chantix if you ve had a serious allergic or skin reaction to it. if you develop these stop taking chantix and see your doctor right away as some can be life-threatening. tell your doctor if you have a history of heart or blood vessel problems, or if you develop new or worse symptoms. get medical help right away if you have symptoms of a heart attack or stroke. use caution when driving or operating machinery. common side effects include nausea, trouble sleeping and unusual dreams. with chantix and with the support system it worked for me. [ male announcer ] ask your doctor if chantix is right for you. professional basketball player charles barclay famously said, i am not a role model. at a press conference earlier today, the president set an example set by jason collins who became the first openly fwrgay athlete in sports.