Well it is interesting that I was talking to a friend about metformin, that I decided to try for the weight gain.She told me she had been put on it to regulate her cycle and it worked. I guess it has been used for many different things successfully. Well I could not believe the difference in my cycle . I dont have any real problems except that I spot for a week before and then have 2 heavy days then spot again for almost a week. thats 2 weeks of it. No pain though ,so Im grateful for that. Being on metformin it was right on time 2 days, then gone, wow that was like when I was a teen. Surprised how it really regulated me,and seemed to clean up things well,no real heaviness-even any discomfort. My friend that has more problem said it worked well.