Listing of important facts, information, and links on the birth control patch.
A birth control patch is a transdermal patch that is applied to a person's skin. The patch releases synthetic estrogen and progestin hormones, which result in preventing pregnancy. These birth control patches are believed to have the same effectiveness as combined oral contraceptive pills.
Answers - Birth Control
Voluntary limitation or control of the number of children ...
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Contraceptive Patch - Wikipedia
In three large clinical trials involving a total of 3,330 women...
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How Do Birth Control Patches Work?
As with most contraceptives, they work by preventing ovulation. There is also a secondary mechanism in which there is inhibition of the sperm penetration by changes that take place in the cervical mucus. Birth control patches effect the endometrium, which effects implantation.
There is a 20 cm² Ortho Evra birth control patch that contains 750 µg ethinyl estradiol. It also contains 6000 µg norelgestromin. This 20 cm² Evra birth control patch contains 600 µg ethinyl estradiol and 6000 µg norelgestromin. The Ortho Evra contraceptive patch and the Evra contraceptive patch are meant to steadily release approximately 20 µg/day of ethinyl estradiol and 150 µg/day of norelgestromin into the systemic circulation.
Side Effects of Birth Control Patches:
There were three large clinical trials with over 3,000 women who were using Ortho Evra / Evra patches for up to a year. Twelve percent of these users stopped the birth control patch due to negative events. The most common event was nausea and vomiting. There were also reports of breast discomfort, reactions from where the patch was applied, headaches, and emotional lability.
There have also been reports of upper respiratory tract infection, menstrual cramps, and abdominial pain.
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