Norgestrel is a synthetic progestin hormone used as a contraceptive. Some synonyms for this medication include levonorgestrel, gestodene, and desogestrel. These medications work by preventing ovulation, thickening cervical mucus, and altering the lining of the uterus. Levonorgestrel is a common generic form of norgestrel and is also used in emergency contraception pills. Gestodene and desogestrel are both newer forms of progestin and are often combined with estrogen in birth control pills. It is important to consult with a healthcare provider to determine the appropriate form of birth control and dosage for individual needs and health considerations.