Bayer Mirena Breast Cancer Class Action Overview:
- Who: Bayer is being sued by a woman who used its birth control product Mirena.
- Why: The plaintiff says she was not advised that the product increases a person’s risk of breast cancer.
- Where: The case was filed in California federal court.
Pharma giant Bayer makes and sells the birth control Mirena but does not adequately advise women that it greatly increases their risk of getting breast cancer, a new class action lawsuit alleges.
Plaintiff Priya Sidhu filed the class action lawsuit against Bayer U.S. LLC Mar. 14 in a California federal court, alleging negligence and violations of state and federal consumer laws.
She’s looking to represent those who were prescribed and used Bayer’s Mirena IUD, which is inserted into a woman’s uterus.
“Defendant markets and sells the products as suitable for use as birth control, but Mirena IUDs are not suitable for that use because they significantly increase the risk of breast cancer in users,” the class action states.
Sidhu says Bayer does note on its website that “Mirena isn’t right for everyone” and warns people to check for possible side effects. However, “conspicuously absent” from the list of safety considerations is any mention of the significantly increased risk of breast cancer caused by the product.
Mirena-Type Birth Control Increases Breast Cancer Risk, Studies Show
Sidhu says Bayer has long been aware of the increased risk of breast cancer from using the product.
The lawsuit states that in 2010, a case-control study compared 329 women users of the product type with 708 controls of the same age. The study showed an increased risk for breast cancer in the population using the Mirena-type product. The lawsuit also cites other studies from around the world that came to the same conclusion.
Sidhu says she would not have purchased the product— or, at minimum, would have paid significantly less for it—had Bayer disclosed that it carried with it a significantly elevated risk of breast cancer.
“Plaintiff and Class Members thus suffered monetary damages as a result of Defendant’s deceptive and fraudulent omissions,” she says.
She’s looking to represent anyone who used Mirena nationwide plus a California subclass and is seeking certification of the class action, damages, fees, costs and a jury trial.
Earlier this year, separate class action lawsuits were filed against Bayer Healthcare and Unilever over allegations the companies sold products contaminated with the chemical benzene, a known human carcinogen, without informing consumers.
Did you know about these possible side effects of Mirena? Let us know in the comments.
The plaintiff is represented by L. Timothy Fisher of Bursor & Fisher, P.A.
The Bayer U.S. Class Action Lawsuit is Priya Sidhu v. Bayer U.S. LLC, Case No. 5:22-cv-01603, in the U.S. District Court Northern District of California.
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268 thoughts onMirena Class Action Alleges Bayer Doesn’t Disclose Increased Risk of Breast Cancer
I as well had the Mirena for 4 years. Never once was I informed of any risk of breast cancer. I was then later diagnosed with breast cancer with no family history, young, healthy, no alcohol use.