Paraquat Lawsuit Guide: Latest Updates (2026)

Past Paraquat Lawsuit Updates

Late in January 2025, a Wisconsin man filed a lawsuit alleging his prolonged exposure to Paraquat caused his Parkinson’s disease. The lawsuit is filed as part of the Paraquat MDL. 

The plaintiff states that his exposure to Paraquat occurred during his work as an agronomist from 1980 to 1985. The lawsuit alleges that Paraquat is unreasonably dangerous and defectively designed. It also asserts that the manufacturer failed to warn users of Paraquat’s neurotoxic risks, a pattern echoed in ultra-processed food lawsuits, where companies are accused of concealing links to conditions like diabetes and liver disease.

Another new MDL Paraquat lawsuit was filed in Florida at the end of January. A Florida man alleges that Paraquat exposure caused his Parkinson’s disease, which was diagnosed in 2020. The complaint details that the plaintiff was regularly exposed to Paraquat while maintaining a property from 2013-2019.

The plaintiff and his spouse, who has joined the lawsuit, are pursuing compensation for healthcare expenses, pain and suffering, loss of companionship, and other damages.

Over 50 Cases To Be Dismissed from Paraquat MDL

A combined 57 cases face dismissal from the Paraquat MDL. Ten cases were dropped in early January, with more dismissals expected in due course. The reason for the potential dismissals is the failure of plaintiffs to submit the required Plaintiff Assessment Questionnaires (PAQ), which are necessary for the discovery process.

MDL Status Conference Held in St. Louis

On January 31, 2025, a status conference took place in the East St. Louis Courthouse, presided over by Chief Judge Rosenstengel and attended by plaintiff and defense attorneys. Updates were provided on state court cases, and the schedule for the initial phase of trial preparation was discussed. The judge emphasized the importance of plaintiff attorneys maintaining communication with their clients. The next status conference regarding the Paraquat MDL is set for April 2025.

California Department of Pesticides Releases New Studies

According to Assembly Bill 1963, signed by Gov. Gavin Newsom in 2024, the California Department of Pesticide Regulation (DPR) must complete a reevaluation of the pesticide paraquat by January 2029. On December 30, 2024, the DPR released two preliminary scientific reports on human health effects and the ecotoxicology of Paraquat.

While the DPR did not find a causal association between Paraquat exposure and Parkinson’s disease, the studies identified an association between birth defects and thyroid impacts and exposure to Paraquat. However, a study published by the National Library of Medicine earlier in 2024 did establish a link between exposure to Paraquat and Parkinson’s disease.

Status of the Paraquat Bellwether Trial

The first Paraquat bellwether trial was scheduled for early 2025 but is now expected to take place sometime in late 2025. The delay occurred because the MDL judge dismissed four cases due to the expert witness testimony being insufficient under the law.

There is speculation that a global settlement for the Paraquat lawsuits may occur within the next six months, although this is not guaranteed. Defendants sometimes choose to settle their claims before a bellwether trial to avoid the uncertainties and costs associated with an unfavorable result, which could provide a precedent for future lawsuits.

What is the Paraquat Lawsuit?

Paraquat, a widely used herbicide (or weed killer), has come under intense scrutiny in recent years due to its association with Parkinson’s disease and other serious health risks. Paraquat has been a staple in agricultural practices since the 1960s. However, its high toxicity levels have led to mounting concerns and a wave of lawsuits aimed at holding manufacturers and distributors accountable for the harm allegedly caused by Paraquat exposure.

The Paraquat lawsuit has some similarities to the ongoing Roundup lawsuit. However, because Paraquat’s use is restricted, the Paraquat lawsuit has far fewer plaintiffs.

Health Risks of Paraquat

Since its introduction into agricultural settings, many people were unknowingly exposed to Paraquat and were later diagnosed with Parkinson’s Disease or other long-term health issues. In some situations, a person may have been knowingly exposed to Paraquat but was not informed of the risks.

As a result of these risks, several class-action and individual lawsuits, similar to those in Roundup cases, have been initiated for victims of exposure to Paraquat to seek damages. As of February 2024, there are over 6,000 total individual suits filed in both Illinois and Pennsylvania. A Bellwether trial is expected at some point this year. The defendants in these lawsuits are primarily manufacturers such as Chevron, Syngenta, Adma, Helm, and Drexel.

What Is Paraquat?

Paraquat, developed primarily by Syngenta and Chevron and manufactured by several companies nationally and abroad, is a highly effective herbicide primarily used to control weeds and unwanted vegetation in agricultural settings. Its fast-acting nature and broad-spectrum control make it a popular choice among farmers and agricultural workers worldwide. Paraquat works by disrupting photosynthesis in plants upon contact, effectively killing them within days of application.

Despite its effectiveness, Paraquat is classified as a restricted-use pesticide in the United States due to its high toxicity. It is only available to certified applicators who have undergone specific training on handling and application procedures to minimize risks.

Who Manufactures Paraquat and Where Is It Used?

Paraquat is mostly used in farms to control weed growth. There are almost 400 countries around the world that manufacture products containing Paraquat. However, it’s not as ubiquitous as that statistic makes it seem. At least 32 countries have banned Paraquat outright because of how dangerous it is to human health.

In the United States, Syngenta is the main distributor of Paraquat. Chevron Chemical Company manufactured the chemical for two years before stopping in 1986. However, it didn’t stop making Paraquat because it realized how dangerous the chemical was — the market just became so competitive that manufacturing it was no longer profitable.

Symptoms and Health Risks of Paraquat Exposure

The controversy surrounding Paraquat stems from its potential health hazards, particularly upon human exposure. The herbicide is known to be highly toxic, with even small amounts posing significant risks to human health. Paraquat poisoning can occur through inhalation, ingestion, or skin contact, with symptoms ranging from mild irritation to severe poisoning and even death.

Acute Paraquat poisoning can lead to a range of symptoms, including nausea, vomiting, abdominal pain, difficulty breathing, and organ failure. Ingestion of even a small amount of Paraquat can be fatal, making it a highly dangerous substance.

Most notably, studies have suggested a potential link between Paraquat exposure and the development of Parkinson's disease. Research conducted on both animals and humans has found correlations between Paraquat exposure and an increased risk of developing Parkinson's, a progressive neurodegenerative disorder characterized by motor impairment and cognitive decline. As a result, Paraquat has been banned in dozens of countries worldwide in the last few years, including the EU and China, and several lawsuits (both class-action and individual) have been filed in the US where Paraquat is still widely used.

How to Qualify for a Paraquat Lawsuit

Individuals who have been adversely affected by Paraquat exposure, either through direct contact or environmental exposure, may be eligible to file a claim against the manufacturers and distributors of Paraquat-based herbicides. These include the following:

• Farmers
• Agricultural workers
• Pesticide applicators
• Individuals working in Paraquat manufacturing plants
• People who live near areas where Paraquat is used

Litigation will be primarily looking at the connection between negligent application of Paraquat and the development or risk of Parkinson’s and other certain diseases. To maximize your chances of success, you should ensure your product liability attorney can prove the following:

• You were exposed to Paraquat
• You suffered serious health problems
• Your exposure to Paraquat caused those health problems

In addition to individual lawsuits, there have been efforts to consolidate Paraquat litigation through multidistrict litigation (MDL) or class-action lawsuits. These mechanisms allow multiple plaintiffs with similar claims to streamline the legal process and pursue compensation collectively.

The Paraquat lawsuits not only provide an opportunity for plaintiffs to claim well-deserved compensation, but they also highlight the growing awareness and concern surrounding the health risks associated with agricultural chemicals and the need for stricter regulation and oversight in their use. As more evidence emerges linking Paraquat exposure to adverse health outcomes, the pressure on manufacturers and regulatory agencies to address these concerns continues to mount.

Paraquat Lawsuit Settlements & Payouts (2025)

Paraquat exposure can result in long-lasting and invasive symptoms. If you’ve been diagnosed with Parkinson’s Disease or another condition as a result of Paraquat exposure, you may be entitled to significant damages as a result of the suffering you’ve endured.

Legal and Financial Options for Paraquat Victims

Filing a Paraquat lawsuit is about holding negligent manufacturers accountable, but it’s also about ensuring you get the compensation you need to heal and move on with your life. Your lawyer may be able to help you sue for compensation for losses. There are two main types.

• Non-Economic Damages: Compensation for pain and suffering and other intangible losses
• Economic Damages: Compensation for lost wages and other losses you can quantify

Each case is different, but for most people, economic damages include medical expenses and lost wages. Non-economic damages can include physical and emotional pain.

How Much Can You Get From the Paraquat Lawsuit?

Paraquat settlement amounts typically range from $100,000 to $150,000 dollars, however, these amounts are not fixed. If you’ve endured significant suffering as a result of Paraquat exposure and the connection between your medical condition and your exposure to Paraquat is clearly defined, you may have a chance at securing even higher settlement amounts.

Factors That Determine Paraquat Settlement Amounts

There are several factors that could either increase or decrease the amount an individual may earn in a settlement against Paraquat manufacturing companies and applicators acting in negligence. The litigation will be looking at the following factors:

Extent of Injury or Illness

The severity of the plaintiff's illness or injury is a significant factor in determining settlement amounts. Plaintiffs who have suffered more severe health effects, such as Parkinson's disease or other debilitating conditions, may be entitled to higher settlements to compensate for medical expenses, lost wages, pain and suffering, and other damages.

Medical Expenses

Plaintiffs may receive compensation for past and future medical expenses related to their illness or injury. This can include costs for doctor visits, hospitalizations, medications, rehabilitation therapy, and other medical treatments necessitated by Paraquat exposure.

Lost Wages and Future Earning Capacity

If Paraquat exposure has caused the plaintiff to miss work or if it is expected to impact their ability to work in the future, they may be entitled to compensation for lost wages and diminished earning capacity.

Pain and Suffering

Plaintiffs may receive compensation for physical pain, emotional suffering, and mental anguish caused by their illness or injury. The amount awarded for pain and suffering is often subjective and may vary based on the specific circumstances of the case.

Proving Paraquat Exposure and Building a Case

Depending on your situation, proving exposure might be simple — but it also might not be. For instance, if you’re a former agricultural worker, tax forms or other employment records could be used as proof. However, if you worked on a farm where you were paid in cash, proving Paraquat exposure could be much harder.

Regardless of your situation, you should reach out to an attorney as soon as you can. The right lawyer will understand how to prove exposure and maximize your chances of a fair Paraquat settlement.