Ethinylestradiol/levonorgestrel (EE/LNG) is a combined birth control pill made up of ethinylestradiol and levonorgestrel. It is used for birth control, symptoms of menstruation, endometriosis, and as emergency contraception. It is taken by mouth. Some preparations of EE/LNG additionally contain an iron supplement in the form of ferrous bisglycinate or ferrous fumarate.