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Chlorpyrifos Lawsuit

If you or a loved one was exposed to Chlorpyrifos (Lorsban or Dursban) and developed Parkinson’s disease or if your child was exposed prenatally or in early childhood and developed neurological disorders such as autism, ADHD, developmental delays, or low IQ, you may be entitled to compensation.

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About the Chlorpyrifos Lawsuit

Chlorpyrifos is an organophosphate insecticide sold under brand names such as Lorsban and Dursban. It was widely used on food crops and in agriculture for decades. Lawsuits allege that manufacturer Corteva (and its predecessor Dow) knew or should have known about the chemical’s serious neurotoxic effects but failed to provide adequate warnings to farmworkers, pregnant women, and communities living near treated fields.

 

Thousands of individuals and families have come forward claiming exposure to chlorpyrifos caused preventable neurological injuries.

 

Why Thousands Are Filing Chlorpyrifos Lawsuits

Plaintiffs claim that Corteva knew or should have known about the dangers of chlorpyrifos but continued to manufacture and market the pesticide without proper warnings. The lawsuits make serious allegations, including:

 

  • Failure to warn about neurodevelopmental risks to children
  • Failure to warn about increased Parkinson’s risk in adults
  • Negligent design and testing of the product
  • Prioritizing profits over public safety

Chlorpyrifos Health Risks and Lawsuit Eligibility

Exposure to chlorpyrifos can occur through skin contact, inhalation, or ingestion, especially among farmworkers, pesticide applicators, pregnant women living or working near treated fields, and residents near agricultural areas. Research has linked chlorpyrifos to severe neurological harm, particularly in developing brains and long-term adult exposure.

 

Who Qualifies for the Chlorpyrifos Lawsuit?

You or your child may qualify for the chlorpyrifos lawsuit if you were exposed to the pesticide and later developed a qualifying neurological condition. This includes prenatal exposure, occupational exposure, or residential exposure near treated fields.

 

Qualifying Conditions for the Chlorpyrifos Lawsuit

Individuals diagnosed with the following may be eligible to file a claim:

  • Parkinson’s Disease (in adults with occupational or long-term exposure)
  • Autism
  • ADHD
  • Developmental Delays or Low IQ
  • Learning Disabilities
  • Motor Deficits or Brain Damage in Children
  • Other Neurological Disorders Linked to Prenatal or Early-Childhood Exposure

 

If You Don’t Have a Confirmed Diagnosis

If you have a history of significant chlorpyrifos exposure and are experiencing related symptoms but do not yet have a formal diagnosis, you may still qualify depending on your medical evaluation and exposure history.

How Chlorpyrifos Exposure Has Impacted Families

Heartbreakingly, these failures have affected thousands of real people who lived and worked in agricultural communities. Families have bravely come forward to hold Corteva accountable for the lifelong neurological harm they have suffered.

 

How to Pre-Qualify for the Chlorpyrifos Lawsuit

You may be eligible to join the chlorpyrifos lawsuit against Corteva if you or your child was exposed to the pesticide and developed a qualifying neurological condition.

Claimants must be able to provide details of their exposure history and, where possible, any medical records, diagnosis documentation, work records, or other supporting evidence. It is important to note that many neurological effects may take years to be diagnosed, and speaking with a medical professional is recommended.

 

How Much Compensation Should You Expect?

Determining a typical settlement amount in chlorpyrifos lawsuits is complex due to the unique nature of each case. Factors such as the severity of the injury, the strength of the evidence, duration of exposure, medical expenses, and long-term care needs all influence the settlement amount.

Settlements and verdicts can vary widely depending on the individual facts of each case. However, average figures can be misleading. We encourage you to seek legal advice to determine your eligibility and to understand what damages you may be able to potentially receive. All cases are unique.

 

I’m Ready To Join The Lawsuit: What’s Next?

If you or a loved one was harmed by chlorpyrifos exposure, you may be considering joining the lawsuit. But these serious neurological injuries often come with lifelong medical bills, therapy costs, lost wages, and other financial strains, so you might be concerned about how much it costs to hire an attorney.

 

Fortunately, most lawyers who work on chlorpyrifos cases do not require upfront fees. Instead, they work on a contingency fee basis. That means you only pay if you win your case. If your case is successful, your attorney is paid a portion of your compensation. This gives all individuals impacted by chlorpyrifos exposure an equal chance at justice.

Frequently Asked Questions (FAQ)

The chlorpyrifos lawsuit is about individuals and families who were exposed to the organophosphate insecticide chlorpyrifos and later developed serious neurological conditions. Plaintiffs allege that manufacturer Corteva (formerly Dow AgroSciences) knew or should have known about the chemical’s neurotoxic effects but failed to provide adequate warnings to farmworkers, pregnant women, and communities living near treated fields.

You or your child may qualify for the chlorpyrifos lawsuit if you were exposed to the pesticide and later developed Parkinson’s disease (in adults) or neurological conditions such as autism, ADHD, developmental delays, low IQ, learning disabilities, or motor deficits (in children). This includes prenatal exposure, occupational exposure as a farmworker or applicator, or residential exposure near agricultural areas.

Health conditions linked to chlorpyrifos exposure include Parkinson’s disease in adults with long-term exposure and neurodevelopmental disorders in children such as autism, ADHD, developmental delays, low IQ, learning disabilities, motor deficits, and brain damage. These injuries have been associated with prenatal or early-childhood exposure through drift, contaminated water, or direct contact.

Corteva is accused of contributing to these injuries by failing to warn users about the neurodevelopmental risks to children and the increased risk of Parkinson’s in adults, by continuing to manufacture and market the pesticide despite known dangers, and by prioritizing profits over public safety.

As of May 2026, no large-scale jury verdicts or global settlements have been reported in the chlorpyrifos litigation. However, the number of individual lawsuits is growing rapidly, particularly following the 2026 UCLA study that strengthened the scientific link to Parkinson’s disease. Early cases are moving forward in state courts.

Thousands of chlorpyrifos lawsuits are being filed because plaintiffs claim that Corteva knew or should have known about the dangers of the pesticide but failed to warn farmworkers, pregnant women, and nearby communities. The recent UCLA study linking chlorpyrifos to a more than 2.5-fold increased risk of Parkinson’s has accelerated new claims for both adult neurological harm and childhood developmental injuries.

Yes. New cases continue to be filed as awareness grows and new scientific evidence emerges. Time limits vary by state and depend on the specific facts of your case, so it is important to speak with an attorney as soon as possible to protect your rights and determine your eligibility.

Plaintiffs use a variety of evidence including medical records showing diagnosis, exposure history (work records, residency near treated fields, or pesticide application logs), communications or records from employers, and supporting scientific studies. Even without direct documentation of exposure, medical records combined with residential or occupational history can help support a claim.

Yes. If your claim is successful, you could receive compensation for medical expenses, therapy costs, lost wages, long-term care needs, pain and suffering, and other damages. Although no global settlements have been reached yet, attorneys are actively evaluating cases and working on a contingency fee basis, meaning you pay nothing upfront and only pay if you win.

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