This combination hormone medication is used to prevent pregnancy. It contains 2 hormones: levonorgestrel (a progestin) and ethinyl estradiol (an estrogen). There is a small amount of iron in each of the 7 inactive tablets taken during the fourth week. The inactive pills do not contain any hormones. These tablets are meant to keep you in the habit of taking 1 tablet each day and do not have enough iron to treat iron deficiency. Besides preventing pregnancy, birth control pills may make your periods more regular, decrease blood loss and painful periods, and decrease your risk of ovarian cysts. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). To decrease your risk of infection, always use an effective barrier method (latex or polyurethane condom/dental dams) during all sexual activity.