NEW YORK (Reuters Health) - A newer version of the Pill may carry a slightly higher blood clot risk than older formulations - but it's still a small risk, says the American College of Obstetricians and Gynecologists.
In new recommendations, the group says that women should be aware of the "possible minimally increased risk" of blood clots with birth control pills containing the hormone drospirenone.
Those include big-selling brands like Yaz, Yasmin, Beyaz and Safyral, along with their generic equivalents.
It has long been known that women on the Pill have a small, but higher-than-average risk of blood clots. And some recent studies have suggested that the risk is relatively higher with pills containing drospirenone.
But because of "study weaknesses," it's not certain whether that is the case, said Dr. Kavita Nanda, who helped draft the new ACOG recommendations.
And the absolute risk of blood clots with any birth control pill is small, ACOG says in a report in its journal Obstetrics & Gynecology.
For every 10,000 women using birth control pills over a year, there would be anywhere from three to nine cases of blood clots called venous thromboemboli. That compares with one to five cases for every 10,000 women who are not pregnant and not on the Pill.
27/10/2012 : By Amy Norton / Yahoo News.
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