How does the Ortho Evra® birth control patch work?
In general, the Ortho Evra® patch works much like the pill does to prevent pregnancy. Both forms of birth control work by: • Preventing Ovulation – The ovary does not release an egg • Thickening the Cervical Mucus – Helps to prevent sperm from entering the uterus • Changing the Endometrium – Makes implantation more unlikely With the patch, birth control hormones enter your bloodstream transdermally – through the skin. While on your body, the patch releases constant levels of the hormones norelgestromin (progestin) and ethinyl estradiol (estrogen).
