I am a female who has been taking Chantix now for 2 1/2 weeks. It has worked great to stop my smoking addiction, but I have battled with the nausea and a nonstop menstrual cycle. I was just wondering if there are any other females that have taken Chantix out there that have had the same issue. I am on the pill for abnormal cycles anyways, but I have never had anything like this happen. One of the rare side effects listed for Chantix states "menstrual problems" but does not go into detail, and I can't seem to find any other literature on it. I can't imagine going through this for three months!