I would like to know from any ladies if they had an incomplete menstrual cycle while on Duromine. I am defenitely not pregnant and have been on Duromine now for 5 weeks. And I am not at menopause age yet. I am two weeks late with my cycle. The week I was suppose to start my cycle I had spotting, but not even spotting only signs of spotting but nothing actually happened. I will speak to my doc when his back in his office next week. Just thought I will ask if anybody had similar experience.