Texas Yaz LawsuitYaz birth control pills may increase a woman’s risk of developing a blood clot by 75%. If you suffered a blood clot or other Yaz side effect after using this oral contraceptive, you may wish to seek financial compensation and justice for your injury. Thousands of women have suffered from Yaz blood clots, which can cause a life-threatening pulmonary embolism, heart attack, ischemic stroke, multiple organ failure, lifelong disability, or death.

Do I Have a Yaz Lawsuit? Collen A. Clark is a true advocate for his clients and is passionate about helping Texans that have been injured or wronged. If you or a loved one has been injured by blood clots, you should contact our lawyers immediately. You may be entitled to compensation by filing a lawsuit.


April 2012 — The FDA has recently announced that it will be updating the drug safety information for all birth control pills containing drospirenone. In a statement, they said: “The FDA has concluded that drospirenone-containing birth control pills may be associated with a higher risk for blood clots than other progestin-containing pills.” The FDA will be updating the drug safety information to warn about the increased risk of blood clots associated with drospirenone.


Yaz is a popular hormonal birth control pill. It was invented by the pharmaceutical drug company Bayer, and received approval from the U.S. Food and Drug Administration (FDA) in 2006 to prevent unwanted pregnancy. The Yaz regimen is a once-daily pill, including 24 “active” tablets which each contain the following combination of hormonal ingredients:

  • 3-mg drospirenone: This is a new type of synthetic progestin, a female reproductive hormone. It has been linked to a 75% increased risk of blood clots compared to older generations of synthetic progestin.
  • 0.02-mg ethinyl estradiol, a decades-old type of synthetic estrogen that has a long history of relatively safe use in medicine

Yaz and the FDA

In December 2011, an FDA advisory panel voted to update the safety labeling on Yaz and other drospirenone birth control pills to warn women about the increased risk of blood clots. In 2011, multiple studies found that drospirenone increased a woman’s risk of developing a blood clot, including a massive study funded by the FDA.

The studies ultimately linked drospirenone to a nearly 75% increased risk of developing a blood clot. In real numbers, this means that approximately 10 women per 10,000 taking drospirenone are expected to have a blood clot, compared with 4-6 per 10,000 taking older synthetic progestins.

A woman taking Yaz may be more likely to have a blood clot, but Yaz is no more or less effective at preventing unwanted pregnancy compared to older combined hormonal contraceptives. Despite this fact, tens of millions of women switched to Yaz, likely in response to a massive advertising campaign. The FDA later sent Bayer three warning letters regarding “misleading” advertisements for Yaz and Yasmin, because they “failed to communicate any risk information.”

Many women who were injured by Yaz blood clots have decided to file a Yaz lawsuit seeking compensation for their injury, because they were unaware of the risk of side effects when they decided to take Yaz.

Yaz and Blood Clots

Women taking Yaz are more likely to suffer from a condition called deep vein thrombosis (DVT), in which small blood clots form in the veins deep inside the legs, thigh, pelvis, or upper arm. These blood clots can also form in other parts of the body. Blood clots are the root of most severe Yaz side effects. A blood clot (also known as a “thrombus”) has a tendency to become dislodged from its original location and get stuck inside major internal organs.

The most common complication of Yaz blood clots is called a pulmonary embolism, in which a blood clot becomes trapped inside the lungs. Lung tissue begins to die immediately, which can cause death. Yaz blood clots can also cause a heart attack, ischemic stroke, multiple organ failure, and death.

Symptoms of a Blood Clot

Blood clots do not always cause symptoms. Around half of all cases of DVT are symptomless. If a blood clot is suspected, this is a 911 emergency. Seek immediate care. Do not wait.

Blood clots can form in veins (blood vessels carrying oxygen-poor blood to the heart) or arteries (blood vessels carrying oxygen-rich blood to the body). Yaz blood clots typically form in veins. Symptoms of a venous thromboembolism may come on gradually, over the course of several hours. This is because the blood clot acts like a “dam,” decreasing the amount of blood reaching the heart. If a blood clot forms in an artery, severe symptoms usually appear suddenly. Arterial blood clots can cause heart attacks and ischemic strokes.

Symptoms of a blood clot may include, but are not limited to:

  • Swelling in the affected area
  • Change in skin color, whiteness or redness
  • Pain
  • Warmth
  • Weakness
  • Loss of sensation
  • Paralysis of one part of the body, loss of function

Yaz Side Effects

Yaz blood clots can cause some of the most severe side effects of Yaz, including death.

If you are one among the thousands of women who have suffered from a Yaz blood clot or other severe Yaz side effect, you may be suffering from medical expenses, lost income, physical and emotional pain and suffering, and other severe injuries. If you decide to file a Yaz lawsuit, you may be entitled to financial compensation for these injuries. Contact a lawyer at The Clark Firm, LLP today to learn more about your legal rights.

Serious side effects of Yaz include, but are not limited to:

  • Depression
  • Blood clots
  • Deep vein thrombosis (DVT)
  • Venous thromboembolism (VTE)
  • Pulmonary embolism
  • Heart attack (myocardial infarction)
  • Stroke
  • Gallbladder disease
  • Pancreatitis
  • Hyperkalemia (toxic high levels of potassium)
  • Irregular heartbeat (heart arrhythmia)
  • Psychological trauma
  • Death

Do I have a Yaz Lawsuit?

Collen A. Clark is a true advocate for his clients and is passionate about helping Texans that have been injured or wronged.

Collen’s amazing success in the courtroom and well known dedication to his clients has earned him the recognition of his peers as one of The Top Trial Lawyers in Texas.”

The Clark Firm has assembled a team of trial lawyers with more than 100 years experience, participation in over 600 jury trials and $260 million in verdicts and/or settlements. Please use the form below to contact us for a free case review.