Microgeynon ED Fe combines Levonorgestrel, Ethinylestradiol and Ferrous Fumarate. It is used as a hormonal contraceptive to prevent pregnancy. The inclusion of ferrous fumarate helps in supplementing iron. Works by inhibiting ovulation, stopping ovaries from releasing an egg A woman’s normal menstrual cycle is characterized by changing levels of sex hormones. The hormones cause the release of an egg from the ovaries and prepare the lining of the womb for a possible pregnancy.