I take it for contraception. I have to warn you that my periods are all over the place with random bleeding which still hasn't quite settled (although it's getting better!) I was also more anxious at first, but that settled after a week or two. I still get quite bad pains in my stomach too (period pain!)

I think it honestly depends on the person. I'd definitely let your daughter try them, but just keep an eye on how everything is I've heard for some people periods stop all together!