What Is the Paraquat Lawsuit About?
The paraquat lawsuit is a product liability claim against Syngenta AG and Chevron U.S.A. These companies manufactured and distributed paraquat dichloride, sold under the brand name Gramoxone, among others. Lawsuits allege that both companies knew, or should have known, that long-term paraquat exposure was linked to Parkinson's disease. Lawsuits also claim that they failed to warn farmers, agricultural workers, and licensed pesticide applicators of that risk.
Paraquat is a fast-acting herbicide used to kill weeds before planting and to dry out crops before harvest. Because it is highly toxic, even in small amounts, the EPA classifies paraquat as a Restricted Use Pesticide. This means that only certified applicators are legally allowed to handle it.
In January 2026, the EPA announced it would require paraquat manufacturers to submit new data. The data must prove the herbicide's currently labeled uses remain safe. This adds regulatory scrutiny on top of the ongoing litigation.
The scientific link between paraquat and Parkinson's disease has been building for over a decade. Researchers with the National Institute of Environmental Health Sciences, using data from the Agricultural Health Study, announced a new development in Tanner et al. (2011). Agricultural workers who used paraquat developed Parkinson's disease at about 2.5 times the rate of those who didn't.
Paraquat has already been banned in more than 70 countries. This includes the entire European Union under Decision 2007/442/EC, though it remains legal for restricted use in the United States. In March 2026, Syngenta announced it would stop manufacturing paraquat entirely by mid-2026.
Health Risks and Injuries Associated With Paraquat Exposure
Paraquat lawsuits focus on one primary diagnosis. However, the way the illnesses present and progress can vary significantly from person to person.
Parkinson’s Disease
A progressive neurological disorder that damages dopamine-producing brain cells, causing tremors, muscle rigidity, slowed movement, and balance problems.
Parkinsonism
Some claims involve related movement disorders. These share symptoms with Parkinson's disease but may not meet the full diagnostic criteria. It largely depends on the medical evaluation.
Central Nervous System Damage
Paraquat harms brain cells and may accelerate neurological decline.
Environmental Exposure
Spraying and runoff exposes nearby families to contamination.
Financial Burden
A Parkinson’s diagnosis can bring additional emotional and financial strain on the family.
Lack of Proper Warning
Manufactures fail to warn about the links of Paraquat exposure.
| Finding | Detail | Source |
|---|---|---|
| Increased Parkinson's risk with paraquat use | Approximately 2.5x higher odds compared to non-users | Tanner et al., Environmental Health Perspectives, 2011 |
| EPA regulatory classification | Restricted Use Pesticide; certified applicators only | U.S. EPA |
| International regulatory status | Banned in 70+ countries, including the EU (2007) | EU Decision 2007/442/EC |
Parkinson's disease develops gradually as brain cells are lost over time. The gap between paraquat exposure and diagnosis can span 10 to 30 years.
Who Qualifies to File a Paraquat Claim?
Not everyone who worked around herbicides has a paraquat claim, and the strength of a claim depends on a few key factors.
Diagnosed Condition
Claims typically involve a confirmed Parkinson's disease diagnosis from a treating neurologist, supported by medical records.
Occupational or Agricultural Exposure
Claims are strongest for farmers, farmworkers, licensed pesticide applicators, and others who directly handled or worked around paraquat products like Gramoxone over an extended period.
Exposure Timeline
Paraquat is a restricted-use pesticide. Claims are strongest when you can document when and where you were exposed, such as through employment records or pesticide application logs.
Diagnosis After Meaningful Exposure
Cases are strongest when there's a plausible gap between exposure and diagnosis consistent with the disease's known latency period.
Every case depends on the specific facts, and you don't need every document in hand before reaching out. Contact our team for a free case evaluation to review your exposure history and diagnosis.
Understanding the Current Status of Paraquat Litigation
Federal paraquat lawsuits are consolidated in MDL No. 3004, In re: Paraquat Products Liability Litigation, before Chief Judge Nancy J. Rosenstengel in the U.S. District Court for the Southern District of Illinois.
As of an April 2026 federal court report, the MDL included more than 6,500 pending cases, making it one of the largest active mass torts in the country. A parallel group of more than 1,600 cases is also pending in the Philadelphia Court of Common Pleas in Pennsylvania state court.
The litigation reached a significant turning point in 2025. The parties signed a confidential settlement agreement dated August 4, 2025, and in March 2026, the court approved the creation of a Qualified Settlement Fund to begin distributing money under that agreement. This followed Syngenta's earlier $187.5 million settlement in 2021 covering an unspecified number of cases. Industry estimates suggest individual payouts under the newer settlement could range from roughly $20,000 to $1.5 million, though these figures are speculative and the specific terms remain confidential. Thousands of cases remain in the MDL, and case-specific proceedings have been paused multiple times to allow the settlement process to move forward.
How Filing Deadlines Affect a Paraquat Lawsuit
Deadlines for filing a paraquat lawsuit vary by state and by the specific legal claims involved. There is no single nationwide deadline.
Parkinson's disease often develops many years after paraquat exposure ends. As a result, most states apply a discovery rule for these types of claims. Under this rule, the clock typically starts when you're diagnosed with Parkinson's disease, not on the date you last worked with paraquat.
Don’t wait to speak with an attorney. This could put your claim at risk, especially with a settlement process already underway. Call to find out if your claim is still within the filing window.
Compensation You May Recover in a Paraquat Lawsuit
In a paraquat case, compensation depends on many factors, including the severity of your diagnosis. Your exposure history and the terms of any settlement you may qualify for also play a role. But claims generally cover the following:
- Medical expenses, past and future, including neurology care and long-term treatment
- Lost wages and lost earning capacity
- Pain and suffering
- Loss of consortium for spouses and family members
- Wrongful death damages, in cases where Parkinson's disease complications contributed to a loved one's death
Every case is different. Past results do not guarantee future outcomes. The exact terms of the 2025 settlement agreement have not been made public. As a result, individual payouts will depend on the specific facts of each claim.
Frequently Asked Questions About Paraquat Lawsuits
Talk to a Paraquat Lawsuit Attorney Today
More than 6,500 paraquat cases are pending in federal court, and the litigation reached a major milestone in March 2026 when the court approved a settlement fund tied to a confidential agreement covering thousands of claims. If you or a loved one developed Parkinson's disease after working with paraquat, you may be entitled to compensation.
We offer free, confidential case reviews with no upfront fees. You only pay if we recover compensation for you. Call 866-582-7177 or fill out our free case evaluation form to find out if you qualify.