What is the Risk of Blood Clots from Yaz or Yasmin?


Nearly all forms of hormone-based birth control pills increase the risk of blood clots. However, studies have suggested that the risk of gallbladder disease and blood clots from Yaz and Yasmin is higher than what is found with some other forms of birth control pills. This could lead to a serious and potentially life-threatening injury for otherwise healthy young women using the Yaz pill or Yasmin pill.

Despite the potential increased risk of Yaz and Yasmin blood clots, Bayer has heavily marketed these drugs, particularly to younger women. The drugs currently account for approximately 30% of the birth control pill market, and many women could reduce the risk of blood clots by taking alternatives to Yaz and Yasmin for birth control.

Yaz and Yasmin both contain drospirenone, a new type of progestin that is not found in any other birth control pills in the United States other than generic versions. This unique “fourth” generation progestin has been cited as the likely cause of many side effects of the birth control pills in Yaz blood clot lawsuit and Yasmin blood clot lawsuit complaints filed against Bayer by women throughout the United States.

In a study published in August 2009 in the British Medical Journal, researchers found that pills containing drospirenone, such as Yaz and Yasmin, may increase the risk of women developing blood clots to 6.3 times that of women not on birth control. By comparison, women who took birth control pills with the older progestin, levonorgestrel, had a much lower risk of blood clots on birth control.

In April 2011, another study published in the British Medical Journal concluded that drospirenone-based birth control pills, such as Yaz and Yasmin, lead to a higher risk of blood clots than levonorgestrel. That study found that women using Yaz or Yasmin may face double the risk of blood clots when compared to women using levonorgestrel. In addition, for women under 30, the Yasmine and Yaz blood clot risk was five times higher than levonorgestrel. This led researchers to concluded that Yaz and Yasmin should not be hte first choice in oral contraception for women.

As a result of the risk of blood clots from Yaz and Yasmin, women taking the birth control pills may face an increased risk of:

In April 2012, Bayer added to add new information to the warning labels for their drugs about the risk of Yaz blood clots and Yasmin blood clots compared to use of other drugs. However, our Yasmin and Yaz blood clot lawyers still believe that these warnings do not provide clear and adequate information for users of the medication about the risk of Yaz or Yasmin blood clot problems.


If you, a friend or family member have suffered a blood clot from Yasmin or Yaz birth control, compensation may be available as a result of the drug makers failure to properly research their medication and warn about the blood clot danger. To review a potential claim with our attorneys, request a free consultation and claim evaluation.

Austin Kirk
Last Updated April 25th, 2011
1 Comment

One Comment

  1. Patricia May 16, 2013 at 10:37 am - Reply

    I recently went to my GP with what I thought was a chest infection, I ended up in hospital and discovered a clot on each of my lungs. I have been taking yasmin and doctors informed it may be caused by yasmin .

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