tell your doctor about any history of depression 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. it feels wonderful. i don't smoke. i don't smoke. [ male announcer ] ask your doctor if chantix is right for you. i don't smoke. we replaced people with a machine.r, what? customers didn't like it. so why do banks do it? hello? hello?! if your bank doesn't let you talk to a real person 24/7, you need an ally. hello?