Marvelon is an estrogen and progestin combination contraceptive pill used to prevent pregnancy.

SIDE EFFECTS that may occur while taking this medication includes nausea, vomiting, bleeding between menstrual periods, breast tenderness or weight gain.

Chemical Name: DESOGESTREL (des-oh-JES-trel) and ETHINYL ESTRADIOL (ETH-in-il ess-tra-DYE-ole)