FDA Says Bayer Birth Control Pills Could Double Blood-Clot Risk

The Food and Drug Administration is warning that birth control pills made by Bayer AG could significantly increase the risk of blood clots. A recent study released by the FDA said that women taking pills containing the hormone drospirenone are 74 percent more likely to experience clots than those on low- estrogen pillsThe issue will be further discussed in December, federal authorities said.

Bayer’s pills contain drospirenone, which is similar to the natural female hormone progesterone. The study evaluated data from 835,826 women ranging in age from 10 to 55 taking pills containing the hormone over time, including Bayer’s Yaz, Beyaz and Angeliq, the FDA report said.

Researchers in Denmark used the country’s health-care data base of women between the ages of 15 and 49 from 2001 through 2009 to find dangerous clots known as venous thromboembolism developed in 4,246 women for the first time during the study. The researchers reported their results in the British Medical Journal this week.

Do you take Yaz, Bayaz, or Angeliq birth control pills?

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