http://www.birthcontrolbuzz.com/blog/2006/11/yaz-birth-control-pill.html
Yaz is a combination birth control pill. It contains two types of hormones:
an estrogen and a progestrin. You'll find that most combination birth
control pills are low-dose, meaning they contain .035 miligrams or less of
estrogen. Low doses of estrogen are just as effective as high doses when
preventing pregnancy and have the added benefit of reducing those pesty side
effects.
Yaz is the only pill that has a 24/4 dosing sch
c*******o 发帖数: 27734
2
。。。
side
for
【在 m**d 的大作中提到】 : http://www.birthcontrolbuzz.com/blog/2006/11/yaz-birth-control-pill.html : Yaz is a combination birth control pill. It contains two types of hormones: : an estrogen and a progestrin. You'll find that most combination birth : control pills are low-dose, meaning they contain .035 miligrams or less of : estrogen. Low doses of estrogen are just as effective as high doses when : preventing pregnancy and have the added benefit of reducing those pesty side : effects. : Yaz is the only pill that has a 24/4 dosing sch
