Chlorpyrifos (CPS)
The insecticide (bug-killer) chlorpyrifos – brand names include Dursban, Lorsban, Durashield, and many others (scroll below to see a longer list) – causes Parkinson's disease. If you or a loved one used or were exposed to chlorpyrifos – for example, if you worked for farm or pest control company that used chlorpyrifos or were present when someone else was using it – and later developed Parkinson's disease, please contact us for a free consultation and evaluation of your potential lawsuit against the companies that designed, made, and sold these products. Our firm has successfully litigated on behalf of literally thousands of people who developed Parkinson's disease caused by pesticides – we have the expertise, experience, and specialized resources needed to take on the world's largest chemical companies and hold them accountable for causing people like you and your loved one this debilitating disease.
What is Chlorpyrifos?
Since it was first sold in the United States in the mid-1960s, Chlorpyrifos has become the most widely-used insecticide in the country. Chlorpyrifos belongs to a group of chemicals known as organophosphates, an infamous group of chemicals that includes many of the world's deadliest chemical weapons. Like its chemical weapon cousins, chlorpyrifos kills by interfering with critical brain functions, including the brain's ability to transmit messages from one brain cell to another. Despite knowing of its relationship to devastating chemical weapons, the makers and sellers of chlorpyrifos – including Dow Chemical Company (now called Corteva) – sold this weapon to millions of Americans for use on farms, golf courses, public spaces, and even the inside of people's homes.
Did You, A Loved One, or Someone Else Use Chlorpyrifos?
One reason you may not have heard of chlorpyrifos is because that name refers to the active chemical ingredient, not the products sold on store shelves. You, or someone you know, may have been exposed to chlorpyrifos if you used or were present near one or more of the following products:
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Lorsban
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Dursban
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Durashield
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Nufos
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Lock-On
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Cobalt
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Bolton
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Scotts ProTurf Insecticide
These are just a few of the products that contain chlorpyrifos that Americans have been exposed to over the past six decades.
How to Know if Chlorpyrifos Exposure Caused Parkinson's Disease
While some diseases are caused by genetics, Parkinson's disease researchers have long recognized that the vast majority of Parkinson's disease cases – 85% or more – are caused, either mostly or entirely, by something other than the person's genes. In other words, the most likely reason someone has Parkinson's disease is because of something that happened to them during their life. More and more science shows that chlorpyrifos is one of just a few chemicals known to cause Parkinson's disease – for example, in 2026, researchers at UCLA published a paper showing that people exposed to chlorpyrifos at their homes are more than 2.5 times mores likely to develop Parkinson's disease than people who are not exposed. Studies like these help explain why Parkinson's disease is becoming so much more common than it was in the past – there are now four times as many Parkinson's disease patients worldwide as there were in 1990, and the number is growing so fast that leading Parkinson's researchers have begun to describe it as a pandemic. The huge growth in the use of chlorpyrifos in the 1970s and 1980s helps explain the explosive growth in Parkinson's disease, which usually takes two to three decades to develop.
If you or a loved one developed Parkinson's disease after being exposed to chlorpyrifos, even if that exposure happened decades ago, chlorpyrifos likely caused the disease.
If Chlorpyrifos Is Dangerous, Why Is It Still Legal?
At this point, you may be wondering why the government would continue to allow companies to continue selling such a dangerous product. While the full answer is long and complex, and has a lot to do with how the U.S. Environmental Protection Agency (the “EPA”) determines whether a chemical is safe, the short answer is that the EPA has repeatedly tried to ban chlorpyrifos but the chemical companies who profit from selling it have spent enormous sums of money on lawyers fighting the EPA, which has limited funds to fight endless court battles, to force it to continue to allow them to sell these dangerous products.
The Wagstaff Law Firm Has Successfully Litigated Thousands of Similar Cases for More Than a Decade
We at the Wagstaff Law Firm truly specialize in suing pesticide makers and sellers whose products cause Parkinson's disease. We have successfully represented literally thousands of people who developed Parkinson's disease from being exposed to pesticides and have successfully litigated literally thousands of cases involving other injuries caused by pesticides. No other firm in the country has achieved this level of success in these kinds of cases. We truly are specialists in this area of the law and we possess the specialized experience, expertise, and resources to seek justice from the enormous chemical companies who profit from selling these dangerous chemicals.
For a free consultation regarding whether you or a loved one may have a chlorpyrifos claim, please click here or call our office today.