What is Ortho evra?
Ortho Evra is a contraceptive patch for women that contains the hormones estrogen and progestin. To use Ortho Evra, you apply the small patch to your skin once a week for three weeks. On the fourth week, you don't use a patch — which allows menstruation to occur. Ortho Evra works similarly to combination birth control pills. Ortho Evra prevents pregnancy by releasing hormones into your bloodstream that suppress ovulation, keeping your ovaries from releasing an egg.