Case Study Suggests Even Low-Dose Risperdal Side Effects May Cause Tardive Dyskinesia Movement Disorders
Scope Infection Lawsuit Patients across the United States have filed medical scope infection lawsuits after contaminated endoscopes and duodenoscopes allegedly transmitted dangerous bacterial infections during procedures such as ERCP, colonoscopy, and other endoscopic treatments.
Spinal Cord Stimulator Lawsuit Spinal cord stimulator lawsuits allege that implanted pain devices malfunctioned, migrated, or caused nerve damage, often forcing patients to undergo revision or removal surgery.
Depo-Provera Lawsuit Depo-Provera lawsuits are being investigated for women who developed meningioma brain tumors after receiving Depo-Provera birth control shots, claiming that Pfizer failed to adequately disclose side effects.
Suboxone Tooth Decay Lawsuit Lawsuits are being pursued by users of Suboxone who experienced tooth loss, broken teeth or required dental extractions. Settlement benefits may be available.
Ozempic Lawsuit Lawyers are pursuing Ozempic lawsuits, Wegovy lawsuits and Mounjaro lawsuits over gastroparesis or stomach paralysis, which can leave users with long-term gastrointestinal side effects
Hair Relaxer Lawsuit Regular exposure to chemicals in hair relaxer may cause uterine cancer, ovarian cancer and other injuries. Women diagnosed with cancer may be eligible for settlement benefits.
Nitrous Oxide Lawsuit Individuals who suffered harm, or families who lost a loved one after using nitrous oxide products may be eligible for financial compensation through a nitrous oxide lawsuit.
Breast Mesh Lawsuit Lawyers are investigating breast mesh lawsuits for women who suffered infections, pain, or implant failure from internal bra implants used in breast reconstruction surgery.
Bard PowerPort Lawsuit Serious and life-threatening injuries have been linked to problems with Bard PowerPort. Lawsuits are now being pursued by individuals who suffered injuries from the implantable port catheter fracturing or migrating.
Sports Betting Addiction Lawsuit Sports betting addiction lawsuits are being investigated for college students and young adults who developed gambling problems after using apps like FanDuel and DraftKings, alleging that the platforms failed to warn about the addictive nature of their features and marketing practices.
Risperdal Safety Information from Clinical Trials Withheld by J&J: Records November 12, 2013 Irvin Jackson Add Your Comments As part of the fallout from a recent $2.2 billion Risperdal settlement between Johnson & Johnson and the federal government, documents have come out suggesting that the company’s Janssen subsidiary may have intentionally withheld clinical trial data that cast the antipsychotic drug in a negative light. ย The Department of Justice (DOJ) has released internal documents of researchers expressing concern and dismay over the company sitting on clinical trial data that showed poor outcomes regarding Risperdal, while appearing to cherry pick the data that presented the drug more positively. The documents include emails regarding a clinical trial identified within them as RIS 232, which appears to deal with the effectiveness and safety of Risperdal, which the government says Johnson & Johnson marketed illegally for uses not approved by the FDA. Do You Know about… Spinal Cord Stimulator lawsuits Spinal cord stimulator lawsuits are being investigated for individuals who suffered unnecessary shocks, burns or other problems, often resulting in the need for additional surgery to remove the SCS. Learn More SEE IF YOU QUALIFY FOR COMPENSATION Do You Know Aboutโฆ Spinal Cord Stimulator lawsuits Spinal cord stimulator lawsuits are being investigated for individuals who suffered unnecessary shocks, burns or other problems, often resulting in the need for additional surgery to remove the SCS. Learn More SEE IF YOU QUALIFY FOR COMPENSATION One of the e-mails (PDF) from 2003, partially redacted, states “Janssen has been sitting on the trial results for a long time. Yet it has a moral and ethical responsibility to publish results quickly and in a way that can be understood and makes clinical sense. It has an obligation to publish not just the clinical efficacy data which should very well be informative and supportive of the use of risperidone if considered properly, but also the safety data, including events that have been labeled in the past as ‘cerbrovascular adverse events’ and death.” Risperdone is the active ingredient in the antipsychotic Risperdal. Another email (PDF), also written by a concerned researcher, this one heavily redacted, appears to indicate that the company had four pooled studies, one of which showed poor results and decided to keep that study under wraps. “At this point, we must be concerned that this gives the strong appearance that Janssen is purposely witholding (sic) the findings from RIS 232,” the writer warns. “I really do have to speak out and urge that Janssen avoids embarrassment and accusations about suppressing information that is relevant to providers and consumers.” The study was eventually published in 2006. Risperdal has been on the market since 1994. Increasing Concerns Over Corporate Clinical Trial Data The revelations come after the Justice Department got Johnson & Johnson to plead guilty to accusations that it marketed Risperdal for unapproved uses, including its use as a chemical restraint for elderly patients in nursing homes with dementia. The illegal marketing came despite FDA warnings that antipsychotics could increase the risk of death in dementia patients. The company was also accused of paying kickbacks to doctors that pushed Risperdal and other Janssen drugs. However, it also comes at a time when regulators and independent health experts are raising alarms about a disturbing trend in the pharmaceutical industry regarding the withholding of clinical trial data. Earlier this month AstraZeneca announced that the DOJ had launched an investigation over its conduct regarding Brilinta clinical trials. While no details of the nature of the investigation were revealed by the company, the investigation comes after accusations that it downplayed or covered up data on heart problems linked to the blood thinner. An August study in the International Journal of Cardiology suggested that AstraZeneca may have manipulated data during a clinical trial to make the drug appear safe when data suggested otherwise. Among the irregularities was the fact that an independent review of the data found that 46% of all primary endpoint events favoring Brilinta came from just two countries, Poland and Hungary, despite the participation of subjects from numerous other countries. The review also found that heart attacks linked to Brilinta were under-reported in the clinical trial findings. Last month, health experts from the European Medicines Agency (EMA) wrote an editorial in the New England Journal of Medicine promoting a draft policy that would require drug makers in Europe to make patient-level data from clinical trials available to the public without revealing the identities of the patients. Last year, aย congressional investigationย determined that Medtronic paid $210 million to study authors that failed to include data on complications linked to its Infuse bone growth product in their reports. Those authors not only failed to disclose links to Medtronic, but the investigation also determined that Medtronic employees secretly edited and sometimes wrote parts of the studies before they were published, which encouraged the off-label use of Infuse. Risperdal Health Concerns In addition to concerns that the antipsychotic could increase the risk of death among elderly dementia patients, the DOJ’s investigation revealed that it was also given to children and the mentally ill in nursing homes for off-label purposes. Risperdal has been linked to serious side effects among children, including a risk of male breast growth in young boys and a possible increased risk of childhood diabetes. Johnson & Johnson currently faces a growing number of Risperdal breast growth lawsuits that allege inadequate warnings were provided for consumer or the medical community about the risk that young boys may experience the development of breasts, a condition called gynecomastia. In some cases, plaintiffs have alleged that boys developed breasts measuring as large as a 38D cup size after using the medication, with many cases resulting in the need for breast removal surgery. Theย psychological effects of Risperdal breast growthย can have a devastating impact on the boys, greatly impacting their overall quality of life. Written by: Irvin Jackson Senior Legal Journalist & Contributing Editor Irvin Jackson is a senior investigative reporter at AboutLawsuits.com with more than 30 years of experience covering mass tort litigation, environmental policy, and consumer safety. He previously served as Associate Editor at Inside the EPA and contributes original reporting on product liability lawsuits, regulatory failures, and nationwide litigation trends. Tags: Blood Thinner, Brilinta, Children, Clinical Trials, Diabetes, Infuse, Johnson & Johnson, Male Breast Growth, Medtronic, Risperdal More Risperdal Lawsuit Stories Risperdal Side Effects Led to Deadly Breast Cancer, Lawsuit Claims January 7, 2026 Court Considers Remanding Risperdal Breast Cancer Lawsuit to California State Court October 29, 2025 Case Study Suggests Even Low-Dose Risperdal Side Effects May Cause Tardive Dyskinesia Movement Disorders December 14, 2022 0 Comments URLThis field is for validation purposes and should be left unchanged.Share Your CommentsFirst Name*Last NameEmail* Shared Comments*This field is hidden when viewing the formI authorize the above comments be posted on this page Yes No Post Comment I authorize the above comments be posted on this page Weekly Digest Opt-In Yes, send me a weekly email with the latest lawsuits, recalls and warnings. Want your comments reviewed by a lawyer?To have an attorney review your comments and contact you about a potential case, provide your contact information below. This will not be published.Contact Phone #Alt Phone #Private CommentsNOTE: Providing information for review by an attorney does not form an attorney-client relationship.CAPTCHAGA SourceGA CampaignGA MediumGA ContentGA Term Δ MORE TOP STORIES Court Outlines Plan To Prepare Suboxone Tooth Decay Lawsuits for Trial in Early 2028 (Posted: today) Four Suboxone tooth decay lawsuits will eventually be selected and prepared for bellwether trials set to begin in March 2028, according to a court order. MORE ABOUT: SUBOXONE TOOTH DECAY LAWSUITSuboxone Film Lawsuit Filed by 46 Users Alleging Drug Makers Ignored Years of Dental Injury Reports (03/03/2026)100 Suboxone Film Tooth Decay Lawsuits Selected for Next Phase of Bellwether Discovery (02/13/2026)Problems With Suboxone Dental Injury Records Collection Continues in MDL (01/26/2026) Hair Relaxer Class Action Lawsuit Seeks Certification for Medical Monitoring Claims (Posted: yesterday) A federal judge is being asked to certify seven hair relaxer class action lawsuits seeking medical monitoring for users, following studies that link the products to an increased risk of cancer. MORE ABOUT: HAIR RELAXER LAWSUITHair Relaxer Endometrial Cancer Lawsuits and Ovarian Cancer Lawsuits Proposed for Early Trials (03/23/2026)Lawyers To Nominate Hair Relaxer Cancer Cases for Early Bellwether Trials Next Week (03/12/2026)Court Outlines Procedures When Women Die After Filing a Hair Relaxer Cancer Lawsuit (02/25/2026) DraftKings, FanDuel Face Lawsuits Over Gambling Losses Caused by Addictive Designs (Posted: 2 days ago) Three sports betting addiction lawsuits claim the plaintiffs were targeted by FanDuel and DraftKings apps once addictive gambling qualities were detected, leading the platforms to exploit them even more. MORE ABOUT: SPORTS BETTING ADDICTION LAWSUITSportsbook Marketing Offers Increase Amount of Money Gamblers Spend: Study (03/27/2026)NCAA Files Lawsuit Against DraftKings Over March Madness Promotions (03/24/2026)Kalshi Prediction Market Faces Illegal Gambling Charges From Arizona AG (03/19/2026)
Case Study Suggests Even Low-Dose Risperdal Side Effects May Cause Tardive Dyskinesia Movement Disorders December 14, 2022
Court Outlines Plan To Prepare Suboxone Tooth Decay Lawsuits for Trial in Early 2028 (Posted: today) Four Suboxone tooth decay lawsuits will eventually be selected and prepared for bellwether trials set to begin in March 2028, according to a court order. MORE ABOUT: SUBOXONE TOOTH DECAY LAWSUITSuboxone Film Lawsuit Filed by 46 Users Alleging Drug Makers Ignored Years of Dental Injury Reports (03/03/2026)100 Suboxone Film Tooth Decay Lawsuits Selected for Next Phase of Bellwether Discovery (02/13/2026)Problems With Suboxone Dental Injury Records Collection Continues in MDL (01/26/2026)
Hair Relaxer Class Action Lawsuit Seeks Certification for Medical Monitoring Claims (Posted: yesterday) A federal judge is being asked to certify seven hair relaxer class action lawsuits seeking medical monitoring for users, following studies that link the products to an increased risk of cancer. MORE ABOUT: HAIR RELAXER LAWSUITHair Relaxer Endometrial Cancer Lawsuits and Ovarian Cancer Lawsuits Proposed for Early Trials (03/23/2026)Lawyers To Nominate Hair Relaxer Cancer Cases for Early Bellwether Trials Next Week (03/12/2026)Court Outlines Procedures When Women Die After Filing a Hair Relaxer Cancer Lawsuit (02/25/2026)
DraftKings, FanDuel Face Lawsuits Over Gambling Losses Caused by Addictive Designs (Posted: 2 days ago) Three sports betting addiction lawsuits claim the plaintiffs were targeted by FanDuel and DraftKings apps once addictive gambling qualities were detected, leading the platforms to exploit them even more. MORE ABOUT: SPORTS BETTING ADDICTION LAWSUITSportsbook Marketing Offers Increase Amount of Money Gamblers Spend: Study (03/27/2026)NCAA Files Lawsuit Against DraftKings Over March Madness Promotions (03/24/2026)Kalshi Prediction Market Faces Illegal Gambling Charges From Arizona AG (03/19/2026)