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The Patch (Ortho-Evra) The birth controlVoluntary limitation or control of the number of children conceived, especially by planned use of contraceptive techniques. patch is a thin, beige, plastic patch that sticks
to the skin. The birth controlVoluntary limitation or control of the number of children conceived, especially by planned use of contraceptive techniques. patch is commonly called Ortho Evra, its brand name. A new patch is placed on
the skin once a week for three weeks in a row, followed by a patch-free
week. The patch releases hormones into the bloodstream, stops the ovaries from releasing eggs, thickens mucus at the cervix to prevent sperm from entering the uterus and changes the lining of the uterus so it is more difficult for a fertilized egg to attach to the lining.
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