Chlorpyrifos, also known by its brand name Lorsban, was once one of the most widely used pesticides in the United States. The product was developed and sold by Dow Chemical through its agricultural division, Dow AgroSciences (now Corteva Agriscience), and was applied across farms, orchards, and agricultural fields to control insects.
The active ingredient in Lorsban is chlorpyrifos, a powerful organophosphate pesticide that researchers have increasingly linked to serious health risks in both children and adults.
For years, agricultural workers and families living near treated fields were exposed to chlorpyrifos without fully understanding the risks.
Today, many are pursuing chlorpyrifos exposure lawsuits after studies connected the chemical to neurological harm, developmental delays, and other long-term health problems.
If you or a loved one believes your health problem is connected to toxic pesticide exposure, speak to a lawyer to get a better idea of your options, who qualifies, and whether your claim may be eligible for a Lorsban exposure lawsuit.
The mass tort team at Dolman Law Group is currently reviewing any potential chlorpyrifos and Lorsban exposure claims. Contact our team today for a free and confidential consultation.
The Invention and Widespread Use of Chlorpyrifos
Chlorpyrifos was a pesticide used for decades across many parts of the country. It was introduced to kill insects that damage crops and help farmers produce large, uniform fruits and vegetables.
For a long time, it was a common part of agricultural work. The main chemical in Lorsban is called chlorpyrifos. At one point, it was used on everything from fruits and vegetables to grains and animal feed crops.
For years, it was seen as just another farm product. Many workers applied it without much concern, and communities living near those fields rarely got clear warnings.
Over time, though, researchers began linking chlorpyrifos exposure to serious health problems. That discovery led to growing concerns about how easily people could be exposed to it.
Who Can Be Sued in a Chlorpyrifos (Lorsban) Lawsuit?
Because chlorpyrifos was manufactured, distributed, and applied by multiple parties, lawsuits may involve several different defendants depending on how the exposure occurred.
Chlorpyrifos was manufactured and sold by several companies over the years. Lorsban was one of the most widely known brand names, but it was not the only product that contained this pesticide.
The chemical itself was originally developed by Dow Chemical, and many lawsuits focus on companies connected to Dow’s agricultural products division.
The companies most often connected to chlorpyrifos products include:
- Dow Chemical Company – developer of chlorpyrifos
- Dow AgroSciences – Dow’s agricultural division that marketed products like Lorsban
- Corteva Agriscience – the company formed after the Dow–DuPont merger that now holds many of these agricultural product lines
Because these companies developed and sold chlorpyrifos-based pesticides for decades, they are frequently named in lawsuits involving pesticide exposure.
Other Companies That Produced Chlorpyrifos Products
After Dow’s patent protections expired, other manufacturers began producing generic chlorpyrifos pesticides. Some of the companies associated with these products include:
- Adama Agricultural Solutions
- FMC Corporation
- Garda Chemical
- Platte Chemical Company
The exact companies named in a lawsuit will depend on which products were used and who manufactured or distributed them.
Are Chlorpyrifos Manufacturers the Only Ones Being Sued?
In some situations, liability may not be limited to the manufacturer alone. Depending on how the exposure occurred, lawsuits may also involve other parties connected to the pesticide’s use.
These can include:
- Pesticide distributors or suppliers that sold the chemical
- Agricultural businesses or farms where the pesticide was regularly applied
- Licensed pesticide applicators or spraying contractors who applied the chemical
- Property owners or operators where repeated pesticide spraying occurred
Determining who may be legally responsible depends on the specific circumstances of the exposure, including who manufactured the pesticide, who applied it, and where the exposure occurred.
Who Was Exposed to Chlorpyrifos/Lorsban?
Agricultural Workers
Agricultural workers were among the first and most heavily affected. Many of them mixed and applied the pesticide daily, often without proper masks, gloves, or protective clothing. These individuals were on the front lines, inhaling the chemical during application or absorbing it through their skin.
In some regions, workers reported symptoms like dizziness, nausea, or difficulty breathing shortly after being in contact with the pesticide, but few were ever told it could be linked to a dangerous substance.
Contaminated Water
There have also been concerns about contamination of local water sources in heavily farmed regions. In some agricultural areas, chlorpyrifos runoff has been detected in nearby streams, irrigation canals, and private wells.
When pesticides move into groundwater or local water systems, nearby residents may be exposed repeatedly through drinking water or daily household use. In communities that rely on well water or local groundwater supplies, this type of contamination can lead to long-term exposure over many years.
Everyday People
The risk was not limited to those in the fields or the unlucky communities whose drinking water was contaminated. People from all walks of life were likely exposed as the chemical would drift on the wind and settle on homes, yards, and playgrounds.
In parts of rural California and Washington, families reported that the strong chemical smell would linger in the air for hours.
Children played outside, friends walked home from school, and people joyously worked in their yards, all while a dangerous chemical was just sprayed on ordinary people without their knowledge or consent.
Unfortunately, a successful Chlorpyrifos pesticide lawsuit will require long-term exposure and serious illnesses, but that doesn’t mean everyday people weren’t affected. Who knows what they suffered from drift exposure.
We will never know but it’s angering to think about being sprayed with poisons and never knowing—profits over everything, I guess.
How Are People Exposed to Chlorpyrifos?
Chlorpyrifos can enter a person’s system in several ways:
- Breathing in the particles during or after spraying
- Touching crops, equipment, or surfaces where it had settled
- Eating produce that still had traces of the chemical
- Using water from sources near sprayed fields
Even small doses, when repeated over time, can build up and cause lasting damage. This is especially true for children, whose developing brains and nervous systems are more sensitive. In some cases, parents noticed developmental delays or learning problems in their kids long before they ever heard of chlorpyrifos.
Part of what made Lorsban so harmful was how quietly it worked. Exposure did not always cause immediate symptoms. Some people felt lightheaded or nauseous but assumed it was due to work stress or fatigue. Others lived for years near farmland without knowing a toxic chemical was being sprayed nearby.
Only later did patterns start to appear. Families began asking questions. Doctors noticed recurring issues in children. Health agencies launched investigations. What seemed harmless for years began to reveal a deeper and more disturbing story.
If any of this feels familiar, you are not alone. You may have legal options to hold those responsible accountable and protect your rights moving forward.
Health Problems Linked to Chlorpyrifos (Lorsban) Exposure
Neurological and Cognitive Effects
Many of the known risks center around how chlorpyrifos interacts with the nervous system. Symptoms may appear shortly after exposure or develop gradually over time.
In adults, neurological symptoms reported after exposure include:
- Confusion
- Dizziness
- Weakness
- Tremors
- Memory problems
- Difficulty concentrating
- Loss of coordination
- Seizures in severe cases
These symptoms can occur after high exposure events or repeated contact with the pesticide over time.
Developmental Injuries in Children
Children are far more vulnerable to the effects of chlorpyrifos exposure. Research from universities and public health institutions has found connections between chlorpyrifos exposure and long-term developmental problems, particularly when exposure occurs during pregnancy or early childhood.
Reported developmental effects include:
- Learning delays
- Behavioral issues
- Attention disorders
- Reduced IQ scores
- Cognitive development problems
Some affected children were exposed before birth, while others experienced exposure through pesticide drift, contaminated clothing brought home from agricultural work, or environmental contact in agricultural communities.
Parkinson’s Disease and Movement Disorders
Emerging research has also raised concerns about a possible connection between long-term chlorpyrifos exposure and Parkinson’s disease.
Researchers have found that chlorpyrifos may damage neurons in the brain that control movement. This type of neurological injury can resemble early Parkinson’s disease and other movement disorders.
Individuals with a history of frequent or prolonged exposure may face a higher risk of developing:
- Parkinson’s disease
- Tremor disorders
- Movement coordination problems
- Progressive neurological impairment
This growing body of research adds to concerns about the long-term health risks associated with chlorpyrifos exposure.
Other Reported Health Issues
In addition to neurological symptoms, people have also experienced:
- Breathing difficulties
- Headaches and nausea
- Muscle cramps or twitching
- Vision problems
- Unexplained fatigue
In some cases, people required medical treatment for symptoms that did not have an obvious cause until exposure was identified. Agricultural workers, landscapers, and people living near treated fields appear to be at the highest risk, especially if they were exposed regularly over a period of years.
The EPA Ban and Ongoing Chlorpyrifos Controversy
Concerns about chlorpyrifos have been building for decades. Public health researchers began raising alarms after studies suggested the pesticide could interfere with brain development in children exposed during pregnancy or early childhood.
In 2021, the Environmental Protection Agency announced a nationwide ban on chlorpyrifos use on food crops after reviewing years of scientific research. Regulators concluded that existing safety limits could not adequately protect children from developmental harm.
However, the regulatory battle did not end there. In 2023, a federal appeals court overturned the nationwide ban and sent the issue back to the EPA for further review. As a result, the federal regulatory status of chlorpyrifos remains unsettled.
Despite the federal uncertainty, several states have already banned or restricted chlorpyrifos use, including:
- California
- New York
- Hawaii
- Maryland
- Oregon
For many families and agricultural workers, the question remains the same: if regulators have been debating the safety of this chemical for years, why was it used for so long without stronger warnings?
That question is now at the center of many chlorpyrifos exposure lawsuits.
Long-Term Impact of Chlorpyrifos is Still Being Studied
Although the Environmental Protection Agency and other health organizations have taken steps to restrict or ban chlorpyrifos in certain settings, the long-term damage has already occurred for many individuals. Lawsuits and medical research continue to bring new information to light, particularly about how low levels of exposure can still lead to significant harm.
If you or someone in your family has experienced any of these health issues and had a possible link to Lorsban, you may want to consider a legal review. The effects may not be reversible, but seeking justice and support is still within reach.
Why People Are Filing Chlorpyrifos (Lorsban) Lawsuits
More individuals are coming forward to file chlorpyrifos lawsuits after learning that their health problems may be connected to exposure to Lorsban and other products containing this pesticide.
These cases often involve:
- Agricultural workers and farm laborers
- Families who lived near treated fields where chlorpyrifos was regularly sprayed
- Individuals exposed to pesticide drift in nearby communities
For years, many people had no reason to suspect that a chemical used so widely in agriculture could be linked to long-term neurological or developmental harm.
The Core Issue in Many Lawsuits
The lawsuits focus on the idea of responsibility. Companies that made and sold Lorsban had access to research that raised concerns about the main ingredient, chlorpyrifos. Despite this information, safety warnings remained limited. Instructions were often outdated and, in some cases, overlooked the risks to workers, families, and children who were more vulnerable to long-term effects.
Legal teams are now working to determine whether companies:
- Promoted the product without adequate testing
- Failed to properly warn workers and nearby communities
- Continued selling the pesticide despite evidence of health risks
These cases often rely on a mix of personal testimony, expert medical opinions, and records that help connect symptoms and illnesses to years of pesticide exposure.
Why People Are Pursuing Legal Claims
Taking legal action allows people to seek answers about what happened and why these risks were not clearly disclosed. It may also allow families to recover financial support for:
- Medical treatment
- Lost income
- Long-term care needs
- Pain and suffering related to pesticide exposure
For many families, these lawsuits are also about accountability and making sure future generations are not exposed to the same risks without warning.
Who Is Eligible to File a Chlorpyrifos (Lorsban) Lawsuit?
Not everyone who was ever exposed to chlorpyrifos will have a viable pesticide exposure lawsuit. In most toxic exposure cases, the strongest claims involve repeated exposure to the chemical and a serious diagnosed injury that may be connected to that exposure.
Most chlorpyrifos lawsuits involve people who experienced repeated exposure to the pesticide and later developed serious neurological or developmental health problems.
- Farmworkers, pesticide applicators, and agricultural laborers who repeatedly handled, mixed, or sprayed chlorpyrifos-based pesticides and later developed neurological or related health problems
- Agricultural workers who worked in fields treated with chlorpyrifos and experienced repeated exposure during planting, harvesting, or field maintenance
- Children exposed during pregnancy or early childhood in agricultural communities who were later diagnosed with developmental, cognitive, or neurological injuries
- Parents or legal guardians filing claims on behalf of an injured child who may have been exposed before birth or during early development
- Families filing wrongful death claims when a loved one suffered a serious illness after long-term chlorpyrifos exposure
These cases are usually strongest when there is evidence of:
- Repeated or long-term exposure to chlorpyrifos
- Diagnoses of a serious medical condition, particularly neurological or developmental injuries
And of course, medical or scientific evidence linking the injury to chlorpyrifos exposure is generally necessary for any of these cases to move forward.
An attorney can review the details of your situation, including where the exposure occurred, how long it lasted, and what medical conditions developed afterward.
What Compensation Survivors May Recover
People affected by Lorsban exposure may be eligible to recover money through a legal claim. The purpose of this compensation is to help with the financial and personal costs that often come with long-term health problems. Each case is different, but there are common types of damages that may be available depending on what someone has experienced.
Many claims begin with the cost of medical care. This can include visits to doctors, hospital stays, physical therapy, and any long-term treatment related to conditions caused by chlorpyrifos. In situations where a child was harmed, future care needs are also considered. Some families may face medical expenses for years after exposure.
Lost income is another important factor. A person who had to miss work or leave their job because of illness can ask for those wages to be included in the claim. This can also apply to parents or caregivers who had to change their schedules or stop working to care for someone affected by pesticide-related injuries.
There are also damages that do not involve bills or lost wages. These are meant to reflect how someone’s life has changed. This could mean ongoing pain, emotional stress, or the impact of a permanent injury. Some people may no longer enjoy the same quality of life they had before their exposure. In these cases, the law allows for compensation that reflects that loss.
In more serious cases, lawyers may also request future damages. These are designed to cover the care and support a person is likely to need in the years ahead. This can be especially important in cases involving young children or people who face lifelong health challenges.
Finally, if there is evidence that a company ignored safety risks or failed to protect the public, the court may award additional money. These damages are rare but are meant to hold companies accountable when they act with serious disregard for safety.
How a Lorsban Lawsuit Moves Forward Step by Step
Taking legal action after being exposed to Lorsban may seem overwhelming at first. The idea of starting a lawsuit can feel complicated, especially if you are already dealing with health concerns. But the process is often more straightforward than expected. It moves in clear stages, and a legal team guides you through each part.
Starting with a Conversation
Everything begins with a simple discussion. You speak with an attorney who understands cases involving chemical exposure. They will ask about your experience, your health history, and any connection you may have had to areas where Lorsban was used. This first step is private and comes with no obligation.
Building the Case
If your situation meets the legal requirements, the attorney will begin gathering details. This may include medical records, work history, or documents that show where and when the exposure likely happened. Experts may be brought in to help explain how the chemical could have affected your health.
Filing the Lawsuit
Once enough evidence has been collected, your legal team will file a complaint in court. This document outlines what happened, who may be responsible, and what you are seeking in terms of financial support. Filing this paperwork starts the official legal process.
Reviewing Information from Both Sides
After the lawsuit is filed, both your team and the defense will exchange information. This step is called discovery. It can include reviewing company records, scientific studies, or internal emails that help explain how decisions were made. It may also involve interviews or written statements.
Reaching a Resolution
Many lawsuits are settled before going to trial. If that happens, the company may offer a financial agreement. Your attorney will walk through the offer with you and help decide if it makes sense for your situation. If the case does not settle, it may move forward to trial, where both sides present their arguments in court.
Throughout the entire process, your lawyer handles the work so you are not left to manage anything alone. Legal action gives people a voice, especially when they feel ignored or harmed without warning. For many, it becomes a way to regain a sense of clarity and move forward with support.
Why Choose Dolman Law Group for Your Chlorpyrifos Case
When someone is harmed by chemical exposure, finding the right legal support becomes one of the most important decisions they will make. Dolman Law Group offers personal attention, clear communication, and a strong record of standing up for people who have been hurt by products that were supposed to be safe.
The attorneys at Dolman Law Group understand how complex chlorpyrifos cases can be. These lawsuits often involve years of exposure, medical records, and scientific research that must all be carefully reviewed. Our firm has experience handling difficult cases that require both legal skill and attention to detail. Our team knows how to connect the facts and build a strong case, even when the evidence is buried in technical documents or company records.
Clients at Dolman Law Group work directly with attorneys, not through layers of staff or automated systems. From the first conversation, you can expect honest answers and guidance that is focused on your situation. The firm limits how many cases it takes so that every client receives the time and effort they need.
If you believe that Lorsban exposure has affected your health or the health of someone in your family, the next step is simple. Dolman Law Group offers free consultations and only collects a fee if your case results in compensation. You will not be asked to pay anything up front.
Choosing a law firm is a personal decision, and it helps to work with people who treat your case with the care it deserves. We’re ready to listen, explain your options, and support you throughout the legal process.
Start Your Chlorpyrifos Lawsuit with Trusted Legal Help
If you or someone you care about has experienced health problems after exposure to Lorsban, now is the time to understand your rights. Chlorpyrifos has been linked to serious and lasting health effects, especially in children and agricultural workers. You deserve answers, and you may be entitled to financial compensation for the harm you have faced.
The legal path may feel unfamiliar, but you do not have to take it alone. Dolman Law Group is here to help guide you every step of the way. With deep experience in toxic exposure cases and a commitment to personal attention, our team is ready to review your story and explain what options are available.
There is no cost to speak with an attorney. Your consultation is free, private, and comes with no obligation. If your case qualifies, Dolman Law Group will take action to help you pursue the justice and support you deserve.
Reach out today to begin the conversation. Taking this first step can lead to real answers, real accountability, and real progress toward recovery.
Frequently Asked Questions About Lorsban Lawsuits
What is chlorpyrifos?
Lorsban is a pesticide that contains chlorpyrifos, a chemical once widely used in farming. It was designed to kill insects but has been linked to serious health issues in people.
Why is chlorpyrifos harmful?
Long-term exposure has been connected to brain development problems in children, memory loss, and other nervous system disorders.
Who is most at risk from Lorsban exposure?
Those most at risk include farmworkers who handled the pesticide, families who lived near treated fields, and children who were exposed during pregnancy or early childhood. People who used or were around Lorsban regularly are more likely to experience lasting health effects.
What kinds of health problems are linked to chlorpyrifos?
Chlorpyrifos has been connected to learning disabilities, developmental delays, attention problems, and reduced IQ in children. Adults have reported symptoms such as fatigue, confusion, tremors, and breathing difficulties. Some effects may not show up right away, which can make it harder to link symptoms to exposure.
Can I still file a lawsuit if the exposure happened years ago?
Yes, you may still be eligible. Many states allow lawsuits to move forward based on when a person first learned about the connection between their health and the chemical exposure. A lawyer can help review your situation and explain whether your case falls within the allowed time frame.
What compensation could I receive?
Compensation may include payment for medical bills, lost income, pain and suffering, long-term care, and other related expenses. Every case is different, and the amount depends on your specific circumstances and how the exposure affected your health or the health of a loved one.
How much does it cost to speak with a lawyer?
There is no charge to speak with an attorney at Dolman Law Group. Your initial consultation is free and completely confidential. If your case moves forward, there are no upfront fees. The firm only collects payment if it is able to recover money for you.
What should I do if I think Lorsban harmed my child or me?
The best first step is to talk with a lawyer who understands toxic exposure cases. You do not need to gather everything yourself. A legal team can help collect records, review your history, and explain whether you have a strong claim. This can be the beginning of getting answers and protecting your rights.
