MSNBC.com, "Ortho Evra Birth-control patch label warns of blood clots"

Oral contraceptives may be a safer option for some women, FDA says

          Women were warned Wednesday that their risk of blood clots in the legs and lungs may be higher if they use the birth-control patch instead of the pill. The Food and Drug Administration said it updated the label on the Ortho Evra birth-control patch to reflect the results of one study that found women using the patch faced twice the risk of clots than did women on the pill. However, a second study found no difference in risk between the two forms of birth control.
         "Even though the results of the two studies are conflicting, the results of the second epidemiology study support FDA's concerns regarding the potential for Ortho Evra use to increase the risk of blood clots in some women," the FDA said in a notice published on its Web site.
         The risk of clots in women using either the patch or pill is small. Even if it doubled for those on the patch, perhaps just six women out of 10,000 would develop clots in any given year, said Dr. Daniel Shames, of the FDA's Center for Drug Evaluation and Research.

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