Metformin
polycystic ovary syndrome
"I started taking metformin in March, I've gone from 500mg to 1500mg and this week I got my period. I haven't had one since December 2014. I've had very little side effects, just a little nausea and an unsettled stomach. I'm really hoping my periods will regulate now. I have also lost 9lbs since 20th March."