Paraquat Lawsuit & Lawyers | Link to Parkinson’s Disease

The paraquat lawyers at Schmidt National Law Group have been alerted to the recent paraquat toxicity studies in both European counties and in America, and have many asking if this widely used chemical used to kill weeds is linked to Parkinson’s disease. There have been 17 deaths from paraquat use since 2000, mainly from accidental ingestion.

We’re now accepting paraquat lawsuit claims from anyone who has been exposed to this toxic weed killer and has been diagnosed with Parkinson’s disease.

We expect large cash settlements to take place when the lawsuit begins. Use the Paraquat Claim Form.

What is Paraquat?

Paraquat was first manufactured, marketed and sold by Imperial Chemical Industries in early 1962 under the trade name Gramoxone. It has been a widely used herbicidal weed killer on farms and other agricultural regions.

Many may recall that in the 1970’s the U.S. Government sent paraquat to authorities in Mexico to kill illegal cannabis (marijuana) growing operations. Those American consumers that smoked cannabis treated with paraquat reported developing mild to severe coughs.    

Is Paraquat Banned?

Currently paraquat is banned in the European Union, and loosely restricted in the United States. It’s widely used in Asia and many third world counties.

In the U.S. paraquat is not banned but is a restricted use pesticide, meaning you must have a certification to use it, mix it, and transfer it.  

Paraquat Trade names currently on the market.

Today paraquat is contained and sold in various U.S. brand name products that include:

  • Blanco, manufactured by United Phosphorous
  • Bonedry
  • Bonfire Herbicide, Altitude Crop Innovations, LLC
  • Cyclone
  • CycloneStar
  • Devour, Innvictis Crop Care, LLC
  • Firestorm, Arysta LifeScience North America, LLC
  • Helmquat
  • Gramoxone, Syngenta
  • Para-SHOT, Sharda USA LLC
  • Paraquat
  • Paraquat 43.2% SL (RedEagle)
  • Paraquat Concentrate (Solera)
  • Parazone, AMVAC® Chemical Corporation
  • Purgatory 3 SL
  • Quik-Quat, Drexel Chemical Company 
  • Willowood Paraquat 3SL

Who is at risk from using paraquat?

Paraquat risks not only for farms and field workers, but also home owners.

Research done in 2009 by the American Journal of Epidemiology pointed out that any exposure to paraquat within 1,600 feet of a home resulted in a greater risk of developing Parkinson’s disease at 75%.

Paraquat Usage Map for Crops.

Map shows what crops/fields were treated with paraquat by year and by crop. Note the steady increase between 2009 – 2017.


In California it is used widely in the the San Joaquin Valley for nut tree groves, grapes, alfalfa and cotton. It’s growth since 2011 has seen an 80% increase from 1990. According to Dr. Caroline Tanner, a neurologist at UC San Francisco, who published an in-depth study of agricultural workers in the Midwest.

Were you diagnosed with Parkinson's following regular herbicide usage?

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“The number of studies that have linked paraquat use occupationally to increased risk of Parkinson’s should raise some concerns if there’s an increasing environmental presence.”  “People who mixed or applied this chemical had more than double the risk of developing Parkinson’s disease compared to people really very similar as far as where they lived, even what they did for a living, age and gender.”

Paraquat Lawsuit

In June 2001, the Environmental Health Perspectives looked into whether pesticides that cause mitochondrial dysfunction or oxidative stress are associated with PD or clinical features of parkinsonism in humans.

Their conclusions stated: “PD was positively associated with two groups of pesticides defined by mechanisms implicated experimentally—those that impair mitochondrial function and those that increase oxidative stress—supporting a role for these mechanisms in PD pathophysiology.”

These studies, source links provided at the bottom of this article, indicates that Paraquat kills cells via a process called oxidative stress, however it is currently unknown how this process happens.

The studies examined genes involved in part of the mechanism paraquat uses to produce oxidants; it’s these oxidants that cause stress in cells.  The researchers focused on a region of the brain known as the substantia nigra pars compacta because this region may be more at risk for oxidative stress.

“Certain people with genetic mutations could have high levels of this gene. They would be very susceptible to paraquat poisoning while working on a farm, for example” quoted Navdeep Chandel, PhD.

“We thought it was a metabolic protein that paraquat was activating to generate oxidants,” Chandel said. “So we localized our work to the 3,000 genes that encode for metabolic proteins, rather than the 18,000 to 20,000 genes human cells have in total.”

How do I join the Paraquat Lawsuit? Is there a Paraquat Lawsuit Timeline for Filing?

If you were diagnosed with Parkinson’s disease and have been using any paraquat product, you may be entitled to a cash payout from the victim’s settlements funds.  

Call the experienced paraquat lawyers & attorneys at Schmidt National Law Group today to see if you qualify for the paraquat lawsuit by either using the secure form on this page or by calling us direct: 1-800-631-5656.


Paraquat Lawsuit & Lawyers, Link to Parkinson’s Disease Page updated on August 18, 2021 for paraquat brand names.