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Depo-Provera birth control shot and its associated health risks, including brain tumors.

Depo-Provera Lawsuit Deep Dive | Brain Tumor & Health Risks Explained

November 24, 202412 min read

Depo-Provera Lawsuit 2024 | A Deep Dive into Birth Control Linked to Brain Tumor Risks

“A 2024 study of over 100,000 participants revealed a link between Depo-Provera (progestogen) and a higher likelihood of developing brain tumors, raising significant safety concerns.”

Depo-Provera Lawsuit Summary

Claims against Depo-Provera allege Pfizer failed to warn users of brain tumor risks linked to the birth control shot. Despite evidence of potential harm, lawsuits filed in California federal courts seek compensation for medical expenses and suffering caused by the drug.

Attorneys Investigating Depo-Provera Lawsuits?

The Depo-Provera birth control shot is a contraceptive injection for women seeking long-term birth control options. Prolonged use has been associated with severe side effects, including bone density loss, hormonal imbalances, and a potential increased risk of meningiomas—benign brain tumors.

A 2024 study of over 100,000 participants revealed a link between Depo-Provera (progestogen) and a higher likelihood of developing brain tumors, raising significant safety concerns. Lawyers are now investigating whether Pfizer failed to adequately warn users about these risks.

Investigating Depo-Provera and Brain Tumor Risks

Legal claims allege that Pfizer did not provide sufficient warnings about the risks of brain tumors, bone density loss, and other complications associated with Depo-Provera. Plaintiffs argue these conditions have caused severe physical, emotional, and financial strain.

Filing a Depo-Provera Lawsuit

If you’ve used Depo-Provera and developed brain tumors or other health complications, you may be eligible to file a lawsuit. Drug manufacturers must warn users about serious risks associated with their products, and failure to do so may entitle victims to compensation.

Lawyers experienced in product liability are investigating claims against Pfizer. They can guide you through the legal process and help you understand your options for seeking justice and compensation.

If you or a loved one have questions about Depo-Provera lawsuits, legal professionals are available to provide support and evaluate your case.

Updates on Depo-Provera Lawsuits

November 15, 2024

Lawsuits claim that Depo-Provera, a prescription contraceptive made by the defendants, caused severe injuries. Scientific studies link medroxyprogesterone acetate (MPA), the drug's active ingredient, to meningiomas.

A database review found that injectable MPA increased the risk of developing meningiomas by 53%. This risk grows with prolonged use.

Trends in meningioma cases from 2004 to 2015 reveal notable increases, especially among females, African Americans, and younger individuals.

Plaintiffs argue the defendants were aware of these risks for decades but failed to warn U.S. patients and healthcare providers.

In contrast, European and Canadian labels for Depo-Provera now carry warnings about the potential for meningiomas.

Depo-Provera Warnings

  • Bone Mineral Density Loss: Long-term use (over two years) may lead to irreversible bone loss, particularly in adolescents and high-risk groups.

  • Thrombosis: Users who experience thrombosis should stop the drug and undergo evaluation for vision or neurological problems.

  • Cancer Risks: Increased risks of breast and cervical cancers have been reported, especially for users with a family history of breast cancer.

  • Ectopic Pregnancy: Severe abdominal pain or suspected pregnancy requires evaluation for ectopic pregnancy.

  • Adverse Reactions: Includes anaphylaxis, weight gain, depression, and irregular bleeding.

Investigation Into Depo-Provera Lawsuits

Pfizer, Inc. manufactures Depo-Provera, a contraceptive injection containing medroxyprogesterone acetate as its active ingredient.

Many users were not warned about serious risks tied to the drug, including its potential to cause brain tumors and other lasting health issues.

Studies have linked Depo-Provera to a higher chance of meningiomas, tumors that affect the brain and spinal cord. These complications often require ongoing medical care and create significant financial strain.

Patients impacted by these side effects are pursuing legal action against Pfizer for negligence and product liability.

If you or a loved one developed a brain tumor or other serious condition after using Depo-Provera, you may qualify to file a lawsuit and seek compensation.

Lawyers are reviewing claims that Pfizer failed to warn users about the risk of brain tumors from Depo-Provera.

Contact us today for a free case evaluation, or use the chatbot on this page to see if you qualify for the Depo-Provera Lawsuit.

What Claims Do Depo-Provera Lawsuits Make?

Current Depo-Provera lawsuits under investigation allege that Pfizer failed to warn patients about the drug’s significant risks.

Claims may include:

  • Pfizer knew of serious health risks but did not provide sufficient warnings or conduct adequate testing before marketing the drug.

  • Plaintiffs suffering from brain tumors after extended Depo-Provera use argue they were not informed of the risks and might have chosen other contraceptive methods if they had known.

  • Legal claims focus on negligence, misrepresentation, and failure to disclose critical safety information.

History of Depo-Provera Lawsuits

Depo-Provera lawsuits date back to the early 2000s.

The first claims highlighted the drug’s link to bone mineral density loss, with plaintiffs asserting that Pfizer failed to warn users about the risk of osteoporosis.

In 2021, Pfizer settled a Canadian class-action lawsuit over bone density side effects for more than $2 million.

The FDA issued a Black Box Warning in 2004, cautioning about the risk of long-term bone loss. Despite this, lawsuits claim that Pfizer did not adequately inform consumers or healthcare providers.

New research connecting Depo-Provera to brain tumors has prompted a second wave of lawsuits..

Depo-Provera and Brain Tumor Risks

Depo-Provera, a widely used contraceptive injection, has been linked to a higher risk of brain tumors called intracranial meningiomas.

Studies show that women using Depo-Provera (medroxyprogesterone acetate) for over 12 months face a 5.6-fold increased risk of developing these tumors.

Meningiomas are usually benign but can grow large enough to cause serious complications. They may require surgical removal and lead to neurological issues, including headaches, seizures, and vision problems.

A study conducted in France analyzed data from over 18,000 women who underwent surgery for meningiomas between 2009 and 2018. This research was among the first to link injectable progestogens like Depo-Provera to these tumors, with similar risks noted for other hormone-based medications used for birth control or menopause treatment.

Given its widespread use, further research is needed to understand the full scope of risks posed by Depo-Provera and its impact on public health.

The growing evidence has led to lawsuits against Pfizer, Depo-Provera’s manufacturer, from individuals who developed meningiomas after prolonged use of the drug.

Women using Depo-Provera should consult their healthcare providers to weigh its benefits against potential risks, especially for long-term use.

These findings also highlight the broader need for better safety research and informed decision-making regarding hormone-based contraceptives.

Serious Health Risks Tied to Depo-Provera

Depo-Provera has been associated with the development of intracranial meningiomas, tumors arising from the protective layers around the brain and spinal cord.

Although non-cancerous, these tumors can grow large enough to pressure brain structures, causing significant health problems.

Prolonged Depo-Provera use, particularly beyond 12 months, has been linked to increased risks.

Other serious health complications associated with Depo-Provera include:

  • Intracranial Meningiomas: These tumors, accounting for roughly 40% of all brain tumors, can cause severe symptoms such as headaches, vision disturbances, seizures, and personality changes. Surgical intervention is often needed.

  • Benign but Serious Tumors: While not cancerous, meningiomas can compress nearby brain structures, causing significant neurological complications.

  • Neurological Symptoms: Long-term users have reported issues like memory problems, muscle weakness, and altered sensory perception.

How Does Depo-Provera Work?

Depo-Provera is a hormonal contraceptive designed to prevent pregnancy.

Its active ingredient, medroxyprogesterone acetate, is a synthetic form of progesterone. Administered every three months, it works by:

  • Stopping ovulation, preventing egg release.

  • Thickening cervical mucus to block sperm movement.

  • Thinning the uterine lining, making implantation unlikely.

Depo-Provera is over 99% effective when used consistently. However, its effects on the body last for months, and fertility may take time to return after discontinuing the injection.

Concerns About Depo-Provera

Depo-Provera has been associated with significant side effects, particularly in long-term users.

  • Bone Density Loss: The FDA issued a Black Box Warning in 2004, cautioning that extended use can cause irreversible bone mineral density loss, especially in adolescents.

  • Brain Tumors: Research links prolonged use to a higher risk of intracranial meningiomas.

Despite its effectiveness as a contraceptive, these risks have led to legal action against Pfizer, with claims that the company failed to adequately warn consumers and healthcare providers about these dangers

Steps to Determine Your Eligibility for a Depo-Provera Lawsuit

If you used Depo-Provera and developed brain tumors or other serious health issues, you may be eligible to file a lawsuit.

Our law firm provides free consultations to individuals who have experienced adverse health effects linked to the Depo-Provera injection.

Contact Eric Cardenas LAW, PLLC for a free consultation, or use the Instant Qualifying Quiz on this page to check your eligibility today.

In product liability cases, lawyers guide clients through the legal process, assisting with critical steps such as gathering evidence and calculating damages.

Gathering Evidence for a Depo-Provera Lawsuit

Strong evidence is essential for building a successful case.

While you can begin collecting evidence independently, your lawyer will assist in gathering, organizing, and presenting it to support your claim.

Possible evidence for a Depo-Provera lawsuit includes:

  • Medical Records: Documentation of your diagnosis, imaging tests (e.g., MRIs, CT scans), and other evidence confirming the presence of a brain tumor.

  • Treatment Records or Plans: Information about completed or planned treatments for the brain tumor.

  • Prescription History: Detailed records showing when and how long you used Depo-Provera to establish exposure duration.

  • Doctor’s Notes and Expert Opinions: Statements from medical professionals linking your condition to Depo-Provera use, supported by expert testimony.

  • Personal Health Records: Accounts of symptoms before and after using Depo-Provera, including neurological issues such as headaches or vision changes.

  • Product Information and Warnings: Copies of packaging, warning labels, or leaflets demonstrating inadequate risk warnings provided by Pfizer.

Solid evidence strengthens your claim and improves the likelihood of securing compensation.

If you have questions about collecting evidence, contact our team for guidance.

How to Calculate Damages in a Depo-Provera Lawsuit

Damages represent the physical, emotional, and financial hardships caused by Depo-Provera’s side effects.

Your lawyer will work with you to identify and calculate the specific damages you may pursue, which could include:

  • Medical Expenses: Costs for past, current, and future treatments, including surgeries, hospital stays, rehabilitation, and medications.

  • Lost Wages: Compensation for income lost due to your condition, or diminished earning capacity if you cannot return to work.

  • Pain and Suffering: Damages for physical pain, emotional distress, and psychological trauma linked to your illness and treatment.

  • Loss of Quality of Life: Compensation for a reduced ability to perform daily activities or enjoy life as you did before your diagnosis.

  • Disability or Permanent Impairment: Damages for lasting effects that limit independence or normal functioning.

  • Future Care Costs: Compensation for ongoing or lifetime care needs, such as in-home assistance or assisted living.

  • Punitive Damages: Additional damages to penalize Pfizer for failing to warn consumers of Depo-Provera’s risks and to prevent similar negligence in the future.

Calculating damages can be complex, as each case is unique.

An experienced lawyer can assess the full extent of your damages and help ensure you receive fair compensation.

An experienced Depo-Provera injury attorney will work with you to calculate the full scope of your damages and build a case tailored to your circumstances. Contact Eric Cardenas LAW today to get started.

Eric Cardenas LAW: Depo-Provera Injury Lawyers

Prolonged use of Depo-Provera has been linked to an increased risk of intracranial meningiomas, a type of brain tumor, according to recent studies.

These findings have led to lawsuits claiming that Pfizer failed to warn users about the potential risks tied to their contraceptive product.

If you or a loved one has experienced serious side effects from Depo-Provera, contact us today for a free consultation.

Our team is here to provide guidance and discuss your case.

Frequently Asked Questions

What Are Depo-Provera’s Most Serious Side Effects?

Depo-Provera may lead to severe side effects, particularly with long-term use. Users should be aware of the following risks and seek medical attention if symptoms occur:

  • Brain tumors: Long-term use is linked to a higher risk of intracranial meningiomas.

  • Bone density loss: Extended use can lead to reduced bone density, increasing the likelihood of osteoporosis and fractures.

  • Allergic reactions: Severe reactions include swelling, hives, and difficulty breathing.

  • Blood clots: Higher risk of clots may result in strokes or pulmonary embolisms.

  • Liver issues: Rare cases involve liver dysfunction, such as jaundice or abnormal liver tests.

Women should regularly monitor their health while using Depo-Provera and discuss any concerns with their healthcare provider.

What Are Depo-Provera’s Mild Side Effects?

Depo-Provera may cause mild, temporary side effects that usually subside as the body adjusts. Common issues include:

  • Menstrual changes: Spotting, prolonged bleeding, or cessation of periods with continued use.

  • Weight gain: Some users report gaining 5–10 pounds in the first year.

  • Headaches: Mild to moderate headaches are a frequent side effect.

  • Breast tenderness: Symptoms similar to premenstrual syndrome may occur.

  • Mood swings: Hormonal shifts may lead to changes in mood or mild depression.

  • Dizziness or nausea: These symptoms often diminish after the injection.

Discuss any side effects with a healthcare provider to decide whether Depo-Provera remains the best option for birth control.

How Many Women Use Depo-Provera Regularly?

Approximately 2 million women in the United States and 74 million women globally use injectable contraceptives, including Depo-Provera.

What Types of Depo-Provera Shots Are Available?

Depo-Provera comes in two formulations:

  • Depo-Provera: The standard formulation, administered as an intramuscular injection every three months.

  • Depo-SubQ Provera 104: A lower-dose version, injected under the skin every three months, marketed as less painful with fewer weight-related side effects.

How Does Depo-Provera Work?

Depo-Provera prevents pregnancy by:

  • Stopping ovulation: Prevents eggs from being released by the ovaries.

  • Thickening cervical mucus: Blocks sperm from reaching the egg.

  • Thinning the uterine lining: Reduces the chance of implantation.

Is There a Depo-Provera Class Action Lawsuit?

No, Depo-Provera cases are being managed through multidistrict litigation (MDL), not a class action.

  • MDL: Consolidates cases for efficiency while allowing each plaintiff to retain individual representation.

  • Class action: Groups all plaintiffs into one case, dividing settlements equally.

MDLs are often used for large-scale product liability cases, enabling plaintiffs to pursue unique damages while benefiting from streamlined pretrial proceedings.

If you’ve experienced complications such as brain tumor or meningiomas after using Depo-Provera birth control shots, contact Eric Cardenas LAW for a free consultation to explore your legal options.

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Eric Esteban Cardenas

Eric Esteban Cardenas is an attorney dedicated to helping individuals rebuild their lives after suffering harm from dangerous products, corporate negligence, or traumatic events. Licensed in Arizona, Texas, California, Missouri, and the United States District Court for the Southern District of Texas, he focuses on mass tort litigation and humanitarian immigration cases, serving clients across the country. Outside of work, Eric shares insights and practical advice through his blog, empowering readers with knowledge to navigate legal challenges. Fully bilingual in English and Spanish, Eric is committed to making legal support clear, accessible, and inclusive.

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