Pfizer, Manufacturer of Depo-Provera, Sued for Allegedly Causing Plaintiff’s Brain Tumor

Publish Date : 10/03/2024

A recent lawsuit filed against Pfizer Inc. and co-defendants Greenstone, Viatris, and Prasco in California federal court, alleges the companies failed to adequately warn patients and doctors about the risk of brain tumors associated with the use of the hormonal contraceptive Depo-Provera. The plaintiff alleges she used Depo-Provera for 16 years and later developed a brain tumor, requiring surgery. The lawsuit claims scientific research has linked Depo-Provera, a high-dose progestin contraceptive, to an increased risk of developing meningiomas (brain tumors), yet Pfizer failed to update its U.S. product labeling with these warnings, despite having done so in the European Union and United Kingdom.

The plaintiff accuses Pfizer and its co-defendants of negligence, failure to warn, and other claims, seeking damages for her injuries. She argues the companies should have provided information about the risks and monitored patients for potential side effects. Plaintiff’s attorneys argue the defendants could have offered a safer, lower-dose alternative.