I have no side effects with this pill. It's regulated my period after years of it being sporadic, made them extremely lighter and hardly any cramping, which was also an issue. I honestly think the people who are having issues with this pill need to either find a better doctor or talk to them and see if they even know what they're doing. If you're having major problems with this pill, then you're highly sensitive to certain dose medications. Again something YOUR DOCTOR should have talked to you about or knew about in the first place.