Ethinyl estradiol and levonorgestrel extended-cycle is a combination drug that contains female hormones that prevent ovulation (the release of an egg from an ovary). This medication also causes changes in your cervical mucus and uterine lining, making it harder for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus. Ethinyl estradiol and levonorgestrel extended-cycle is used as contraception to prevent pregnancy. Ethinyl estradiol and levonorgestrel extended-cycle may also be used for purposes not listed in this medication guide.
Jolessa stands in the long list of many contraceptives used by women in particular. It is basically used to prevent pregnancy. In other words, the drug helps in preventing ovulation (release of the egg to the uterus) soon after sexual intercourse. Some effects are created in the uterine walls hence eventually discouraging fertilization.