prevents pregnancy. Many medications, including some antibiotics and supplements, can cause Ortho-Novum to not work. Ask your pharmacist or doctor before taking any other medications.
Ortho-Novum is a prescription birth control medication used to prevent pregnancy. Ortho-Novum contains two hormones, norethindrone and ethinyl estradiol, which belong to a group of drugs called hormonal contraceptives. These hormones prevent pregnancy by stopping ovulation and by altering cervical mucus and the lining of the uterus to prevent sperm from entering.
Common side effects of Ortho-Novum include nausea, breast tenderness, and vaginal bleeding between menstrual periods.