Risperdal Breast Cancer Lawsuit: Get the Justice You Deserve

Contact Us Today for a Free Rispderdal Claim Evaluation
The Marin & Murphy Law Firm is committed to seeking justice for women who have developed breast cancer after being prescribed Risperdal off-label for mood disorders. Risperdal, also known as risperidone, is an antipsychotic medication approved by the FDA for conditions like schizophrenia, bipolar disorder, and irritability associated with autism.
However, the pharmaceutical drug has been widely prescribed off-label to women and teenage girls for mood-related conditions such as borderline personality disorder, ADHD, and other behavioral issues. Studies indicate that women are disproportionately more likely to receive these off-label prescriptions. Alarmingly, research suggests that long-term use of Risperdal can elevate prolactin levels—a hormone that may stimulate breast tissue growth—potentially increasing the risk of breast cancer.
Recent Medical Studies Link Risperdal to Breast Cancer
Studies published in reputable medical journals, such as Science Direct and American Journal of Psychiatry and Schizophrenia Research, indicate that prolonged exposure to Risperdal can lead to significantly higher prolactin levels, potentially contributing to breast cancer development. This alarming connection has left many patients and families searching for answers and accountability.
We recognize the profound emotional and physical toll a breast cancer diagnosis can take. Our experienced pharmaceutical litigation attorneys are here to guide you through the legal process with compassion and experience, fighting tirelessly to pursue the compensation available under the law for the harm caused by Risperdal.
Don’t Wait to Seek Justice
If you or a loved one developed breast cancer after taking Risperdal, the time to act is now.
Contact the Marin & Murphy Law Firm for a free consultation and learn how we can help you pursue justice and compensation.
Legal deadlines may limit your ability to file a claim—don’t risk your right to recovery.
📞 Call us now: 888-348-2735
💬 Or fill out our secure contact form to get started.
What is Risperdal? Understanding the Drug and Its Risks
Risperdal, known generically as risperidone, is an atypical antipsychotic medication primarily approved by the U.S. Food and Drug Administration (FDA) to treat schizophrenia, bipolar disorder, and irritability associated with autism. Developed by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson, Risperdal and it’s generic versions have been widely used since its introduction in 1993. However, it has also been frequently prescribed off-label to women for mood-related disorders such as borderline personality disorder, ADHD, and other behavioral issues, raising significant health concerns.

Conditions Treated by Risperdal
Risperdal is FDA-approved for:
- Schizophrenia: A severe mental disorder marked by hallucinations, delusions, and disrupted thinking.
- Bipolar Disorder: Characterized by intense mood swings, from manic highs to depressive lows.
- Irritability Associated with Autism: Including aggressive behavior or severe tantrums in autistic individuals.
Despite these approved uses, its off-label prescription to women for mood disorders has become increasingly common, often without full awareness of the potential risks.
How Risperdal Works
Risperdal targets dopamine and serotonin levels in the brain—neurotransmitters that influence mood and behavior. By adjusting their balance, it helps manage symptoms of the approved conditions. However, when used off-label for mood disorders in women, the long-term effects and risks, particularly hormonal changes, may not be fully understood.
A Widely Used Drug with Growing Concerns for Women
Since 1993, Risperdal has been prescribed to millions across the U.S., including a significant number of women for off-label purposes. Studies suggest that women are more likely than men to receive such prescriptions, increasing their exposure to serious side effects. Notably, evidence points to a link between Risperdal and breast cancer, possibly due to elevated prolactin levels—a hormone tied to breast tissue development—which may heighten breast cancer risk in women using the drug for mood disorders.
Risperdal Breast Cancer Lawsuits: Seeking Justice for Women
The potential connection between Risperdal and breast cancer has sparked numerous Risperdal breast cancer lawsuits, particularly from women prescribed the drug off-label for mood disorders. Plaintiffs allege that Johnson & Johnson and Janssen failed to warn users about this risk, leaving many blindsided by severe health consequences. If you or a loved one developed breast cancer after using Risperdal for a mood disorder, a skilled Risperdal breast cancer lawyer can help you explore your legal options.
Risperdal and Breast Cancer: The Connection
Risperdal (risperidone) is a widely prescribed antipsychotic drug used to manage mental health conditions, but growing evidence suggests a troubling link between its long-term use and an increased risk of breast cancer. This connection stems from Risperdal’s known effect on prolactin, a hormone that, when elevated, may promote breast cancer development. If you or a loved one has been diagnosed with breast cancer after using Risperdal, you may be entitled to compensation.
How Risperdal Elevates Prolactin Levels
Risperdal works by altering neurotransmitter levels in the brain, including blocking dopamine receptors. This blockade can lead to a significant increase in prolactin production—a hormone primarily associated with lactation but also linked to breast tissue growth. When prolactin levels remain elevated over time, it may stimulate abnormal cell growth in breast tissue, potentially increasing the risk of breast cancer.
Key Studies Highlighting the Risk
Several scientific studies have explored the potential link between Risperdal, elevated prolactin, and breast cancer risk:
- A 2022 study found that high-prolactin drugs like Risperdal are associated with a 62% increased risk of breast cancer.
- Research published in Toxicology Reports noted a 59% increased risk for users of prolactin-elevating antipsychotics.
- A Swedish study reported a 47% increased odds of breast cancer after 5 or more years of use.
These findings suggest that Risperdal’s impact on prolactin levels may contribute to breast cancer, especially with prolonged use. However, it’s important to note that not all research agrees. A PubMed cohort study found no increased short-term risk, indicating that the risk may be more pronounced with long-term exposure. This highlights the need for further investigation into the complex relationship between antipsychotics and cancer risk.
The Biological Mechanism
Prolactin plays a critical role in cell growth and survival, particularly in breast tissue. When levels are abnormally high, as seen with Risperdal use, it can lead to:
- Accelerated cell proliferation: Increasing the likelihood of cancerous mutations.
- Enhanced tumor progression: By promoting the survival of cancer cells.
- Interaction with estrogen: Creating hormonal imbalances and amplifying the effects of other hormones known to influence breast cancer risk.
These mechanisms underscore why long-term users of Risperdal may face a higher risk of developing breast cancer, especially if other risk factors are present.
Why This Matters for Your Health and Legal Rights
The potential connection between Risperdal and breast cancer has led to numerous Risperdal breast cancer lawsuits. Plaintiffs argue that manufacturers like Johnson & Johnson failed to adequately warn users about this serious risk. If you’ve been affected, you may be entitled to compensation for medical expenses, pain and suffering, and more.
At the Marin & Murphy Law Firm our dedicated Risperdal breast cancer lawyers are committed to holding pharmaceutical companies accountable. We offer compassionate, expert legal guidance to help you navigate this complex issue and fight for the justice you deserve.
Risperdal Lawsuits: Seeking Justice for Breast Cancer Victims
In a groundbreaking lawsuit filed in April 2025, Bridgett Brown filed the first Risperdal Breast Cancer lawsuit to take on pharmaceutical giants Johnson & Johnson and Janssen Pharmaceuticals. The lawsuit, filed in Alameda County Superior Court (Case No. 25CV119808), alleges that these companies concealed evidence about the cancer risks associated with Risperdal, a widely prescribed antipsychotic medication. This lawsuit marks a significant development in the ongoing legal battles surrounding Risperdal, which has been linked to serious health issues, including breast cancer.
The Bridgett Brown Lawsuit: Allegations of Concealed Evidence
Bridgett Brown, the plaintiff in this case, alleges that Johnson & Johnson and Janssen Pharmaceuticals knowingly concealed evidence since the 1990s about Risperdal’s cancer risks, including drug-induced hyperprolactinemia. Hyperprolactinemia is a condition characterized by elevated levels of prolactin, a hormone that can stimulate breast tissue growth and has been linked to breast cancer. Despite internal studies linking the drug to elevated prolactin levels, the Risperdal label denied cancer risks until 2025. This lawsuit seeks to hold the manufacturers accountable for their alleged negligence and failure to warn patients and healthcare providers about the potential risks associated with Risperdal.
Previous Lawsuits: Gynecomastia and Settlements
Prior to the Bridgett Brown lawsuit, Risperdal had already been the subject of numerous lawsuits focused on gynecomastia, a condition characterized by abnormal breast growth in males. These lawsuits resulted in significant settlements, including a $2.2 billion settlement in 2013 and an $800 million settlement in 2021 for 9,000 cases. These outcomes demonstrate the potential for holding manufacturers accountable for the harm caused by their products. The settlements also highlight the importance of legal action in seeking justice for individuals affected by Risperdal.
Current Breast Cancer Lawsuits: Seeking Justice
The current breast cancer lawsuits, including the Bridgett Brown lawsuit, aim to secure justice for individuals who have been affected by Risperdal. The Marin & Murphy Law Firm, a pharmaceutical litigation law firm, is at the forefront of these efforts. With their experience and commitment to justice, the attorneys at Marin & Murphy are dedicated to helping affected individuals seek the compensation they deserve. If you or a loved one has been affected by Risperdal, contact our defective drug attorneys today for a free consultation. Our experienced Risperdal breast cancer lawyers are here to help you seek justice and compensation.
Who is Eligible for a Risperdal Breast Cancer Lawsuit?
Have you or a loved one been diagnosed with breast cancer after taking Risperdal? You may qualify to file a lawsuit and seek the compensation available under the law. Our dedicated attorneys are here to evaluate your case based on these key criteria:
- You used Risperdal, Invega, or Zyprexa (or their generic versions);
- You used the drug for at least 2 years;
- You used the drug after 2014;
- You were diagnosed with breast cancer after using the drug.
Eligibility can depend on your unique situation, but you don’t have to figure it out alone. Our legal team provides free, confidential case evaluations to review your medical and prescription history.
Don’t wait—contact us today to find out if you’re eligible and explore your legal options with experienced professionals by your side.
Compensation and Damages: What You May Be Entitled To
If you or a loved one has been diagnosed with breast cancer after taking Risperdal, you may be entitled to significant compensation. The physical, emotional, and financial toll of breast cancer can be overwhelming, but a successful Risperdal breast cancer lawsuit can help ease the burden. At the Marin & Murphy Law Firm, our experienced Risperdal breast cancer lawyers are dedicated to fighting for accountability and the compensation available under the law.
Types of Compensation Available
Victims of Risperdal-related breast cancer may be entitled to compensation for:
- Medical Expenses: Costs for surgeries, chemotherapy, radiation, and ongoing care can add up quickly. Compensation can cover these expenses, ensuring you receive the best treatment without financial worry. Learn more about cancer treatment costs.
- Lost Wages: Income lost due to illness or treatment can destabilize your finances. Compensation for lost wages helps you and your family stay secure during recovery. Read about the economic impact of cancer.
- Pain and Suffering: Physical and emotional distress caused by the disease deserves recognition. Compensation for pain and suffering addresses the profound impact on your life. Explore coping resources.
- Punitive Damages: In cases of corporate misconduct, additional damages may apply to punish the manufacturer and prevent future harm. Learn more about punitive damages.
Why Choose the Marin & Murphy Law Firm?
At the Marin & Murphy Law Firm, we operate on a contingency fee basis—you owe no attorney’s fee unless there is a recovery. The firm advances court costs and litigation expenses, and those expenses are repaid from the recovery. You are not responsible for court costs or litigation expenses if there is no recovery, unless a court directs otherwise. The attorney’s fee is a percentage of the gross recovery, calculated before expenses are deducted. Our team is committed to obtaining compensation for you and holding negligent drug manufacturers accountable. If you have received a breast cancer diagnosis after using Risperdal, don’t let time run out on your claim—act now.
Our Contingency Fee Structure: No fee unless there is a recovery
At Marin & Murphy, we believe that everyone deserves access to justice, regardless of their financial situation. That’s why we offer our services on a contingency fee basis for mass tort cases like the Rispderal Breast Cancer lawsuit. This means you pay no upfront fees, and we only get paid if we successfully recover compensation for you. For a detailed explanation of our fee structure, please visit our Mass Tort Fee Structure page.
Why Choose the Marin & Murphy Law Firm?
We bring decades of experience in pharmaceutical litigation, having secured substantial settlements against drug companies for clients harmed by dangerous drugs like Risperdal. Our team combines legal experience with a client-centered approach, ensuring you receive personalized attention and aggressive representation throughout your case. Our attorneys have years of experience fighting for victims of dangerous drugs in high stakes pharmaceutical litigation including cases like Depo-Provera, Ozempic, and Oxbryta. Let us work to secure justice in your Risperdal breast cancer lawsuit and hold Johnson & Johnson accountable.
We understand the physical and emotional toll breast cancer can take on you and your family. That’s why we are committed to fighting for your rights and holding negligent manufacturers accountable. With the Marin & Murphy Law Firm, you can trust us to navigate the complex legal processes and deliver the results you deserve. For more information on the differences between a Risperdal mass tort case and a Risperdal class action case, review the information on our Mass Tort litigation page which breaks this down in detail.
Don’t Wait to Seek Justice
If you or a loved one developed breast cancer after taking Risperdal, the time to act is now.
Contact the Marin & Murphy Law Firm for a free consultation and learn how we can help you pursue justice and compensation.
Legal deadlines may limit your ability to file a claim—don’t risk your right to recovery.
📞 Call us now: 888-348-2735
💬 Or fill out our secure contact form to get started.
Frequently Asked Questions (FAQs)
Q: How does Risperdal cause breast cancer?A: Risperdal increases prolactin levels, which research suggests may promote breast cancer cell growth, particularly with long-term use. Learn more from this 2022 study.
Q: What are the costs of hiring the Marin & Murphy Law Firm?A: We work on a contingency fee basis—there are no upfront costs, and there is no fee unless there is a recovery.
Q: How long do I have to file a lawsuit?A: Statutes of limitations vary by state. Contact us immediately to ensure your claim is filed on time.
Resources and Links
For more information on Risperdal and breast cancer risks, explore these authoritative resources:
About Your Risperdal Breast Cancer Lawyer: Matthew Marin

Attorney Matthew Marin is a dedicated advocate for individuals harmed by dangerous pharmaceuticals, including those affected by Risperdal and its potential link to breast cancer. A graduate of Roger Williams University School of Law, Matthew has been practicing law since 2008, with a strong focus on personal injury and pharmaceutical litigation. With over 15 years of experience, he has built a reputation for his meticulous preparation and fierce representation in complex cases involving harmful drugs. Matthew’s experience shines in holding pharmaceutical giants like Johnson & Johnson accountable, securing justice for clients impacted by defective medications. His approach blends in-depth research, strategic litigation, and a compassionate commitment to understanding each client’s story—especially those facing the devastating effects of breast cancer. As a member of the American Association for Justice and the National Trial Lawyers, Matthew is a trusted authority in Risperdal lawsuits and pharmaceutical accountability. If you or a loved one has been diagnosed with breast cancer after taking Risperdal, contact Matthew Marin today for a free consultation to explore your legal rights.