Patch (Ortho-Evra)
Ortho Evra is a reversible prescription method of birth control like the birth control pills. It is a thin, beige, plastic patch that sticks to the skin.
A new patch is placed on the skin of the buttocks, stomach, upper outer arm, or upper body once a week for three out of four weeks. No patch is used in the fourth week. The patch releases synthetic estrogen and progestin like that in the pill to protect against pregnancy for one month.
The combination of hormones works in two ways. Usually, it keeps the ovaries from releasing an egg (ovulation). Less often, it thickens the cervical mucus, which prevents sperm from joining with an egg.
The patch works best when it is changed on the same day of the week for three weeks in a row.
Pregnancy can happen if an error is made in using the patch -- especially if
- it becomes loose or falls off for more than 24 hours
- the same patch is left on the skin for more than one week
If either of these things happens, follow the directions in your Ortho Evra package insert, and call your clinician.
This document is for informational purposes only and is not intended to constitute medical advice, diagnosis, or treatment.
|
