Roundup Class Action Lawsuit: Is Your Weed Killer Killing You?

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  • Cancer Lawsuits
Roundup lawsuit attorneys advocating for victims of glyphosate-related health conditions

Affected by Roundup? Learn how you could join the fight for justice and potentially receive financial relief.

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Roundup weed killer is one of the most well-known products on the market for common household yard maintenance. Until recently, consumer versions of the product contained a chemical called glyphosate, which is particularly toxic to plants that fall into the broadleaf family. This property made glyphosate an attractive option for homeowners wanting to kill weeds without harming the grass in their yard or other desirable plants. 

 

Monsanto developed Roundup and helped make it highly visible and commonly sold for this need, continually backing the product’s safety. However, research has linked glyphosate to serious health problems in humans, including cancers like non-Hodgkin's lymphoma. This has led to public scrutiny and a class action lawsuit filed by those who believe they were harmed by Roundup.
 

The Roundup lawsuit seeks to hold the company accountable for failing to label its products as unsafe or warn consumers of the potential dangers of use. 
 

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Is Roundup Banned in the US?  

Bayer (which acquired Roundup when it bought Monsanto in 2018) has consistently defended glyphosate’s safety profile. However, in the wake of the litigation, the company announced in 2021 that it would stop selling glyphosate-based Roundup for residential use in 2023.  

 

Though consumer versions of Roundup no longer contain glyphosate, there is no federal ban on the herbicide for commercial and agricultural use in the USA. This means people may still be exposed to glyphosate in a variety of ways, including by consuming produce treated with the product.  

 

It’s crucial to note that, while Roundup containing glyphosate is no longer sold for residential use, products purchased prior to 2023 may still contain the chemical. If you use Roundup and are unsure when it was purchased, it’s important to check the label before applying it to your lawn or garden. 

 

The Dangers of Glyphosate Exposure  

Glyphosate-based Roundup weed killer has been linked to serious health problems. These include:  

 

  • Several forms of cancer 
  • Infertility 
  • Liver and kidney problems 
  • Gut microbiome disruption 

 

Glyphosate exposure can happen in a variety of ways to those who:  

 

  • Used a glyphosate-based weed killer (like Roundup) on their lawns or gardens 
  • Worked with or around glyphosate herbicides 
  • Live in a rural area where glyphosate is used 
  • Consume fruits, vegetables, or other produce treated with Roundup 

 

What Cancers Are Included in the Roundup Lawsuit?  

Countless records collected in the Roundup Lawsuit claim users exposed to the Roundup weed killer have been diagnosed with various types of cancers. The primary health condition associated with glyphosate exposure has been non-Hodgkin lymphoma. Consumers may wonder what other cancers are included in the Roundup Lawsuit. The list includes the following: 

 

  • Anaplastic large cell lymphoma 
  • B-lymphoblastic lymphoma 
  • Burkitt lymphoma 
  • Chronic lymphocytic leukemia 
  • Cutaneous T-cell lymphoma 
  • Diffuse large B-cell lymphoma 
  • Extranodal marginal zone B-cell lymphoma, mucosa-associated lymphoid tissue 
  • Follicular lymphoma and hairy cell leukemia 
  • Large granular lymphocytic leukemia 
  • Lymphoplasmacytic lymphoma (Waldenstrom Macroglobulinemia) 
  • Mantle cell lymphoma 
  • Marginal zone B-cell lymphomas 
  • Mycosis fungoides 
  • Nodal marginal zone B-cell lymphoma 
  • Peripheral T-cell lymphomas 
  • Primary central nervous system lymphoma 
  • Sezary syndrome 
  • Small lymphocytic lymphoma 
  • Splenic marginal zone B-cell lymphoma 

 

Roundup: A History of Controversy  

Glyphosate has a long record of public distrust. The chemical was discovered by a Monsanto scientist and entered the consumer market in the 1970s. By the 1980s, Monsanto became aware of its link to cancer—but failed to warn consumers. Since then, a battle has raged among national and worldwide health organizations regarding glyphosate’s safety.  

 

Organizations that recognize the chemical’s dangers include:  

 

  • The World Health Organization’s International Agency for Research on Cancer (IARC) 
  • The California Office of Environmental Health Hazard Assessment (OEHHA) 
  • The U.S. Agency for Toxic Substances and Disease Registry (ATSDR) 

 

However, some agencies deny any link between glyphosate and cancer:  

 

  • The U.S. Environmental Protection Agency (EPA) 
  • The European Food Safety Authority (EFSA) 
  • The Australian Pesticides and Veterinary Medicines Authority (APVMA) 

 

In June of 2022, the Ninth Circuit ordered the EPA to re-evaluate glyphosate’s approval, ruling that the organization failed to properly evaluate the chemical’s cancer risk. This action further heightened national attention on the potential dangers of glyphosate-based pesticides. 

 

Though the EPA’s final review on glyphosate’s safety isn’t expected until 2026, the organization currently maintains its stance that glyphosate is unlikely to cause cancer in humans. 

 

Recently, internal communications were released by Bayer during the Roundup lawsuits, indicating that Monsanto staff may have been aware of the herbicide’s potential dangers. Disturbingly, these documents seem to show that the company intentionally withheld this information from the public. 

 

Is the New Roundup Safe? 

Residential Roundup no longer contains glyphosate—but is it harmless to human health? While some believe it poses a lower risk of toxicity than glyphosate-based herbicides, critics worry that Bayer traded one toxic chemical for a concoction of even more harmful ones with its new formulation.  

 

New residential Roundup contains four active ingredients: diquat dibromide, fluazifop-P-butyl, triclopyr, and imazapic. These chemicals are linked to kidney and liver damage, as well as reproductive harm. Studies also show they are even more damaging to the environment than glyphosate, harming bees, earthworms, birds, and aquatic life. 

 

Concern about new Roundup products aside, the formulation change makes one point clear. The growing number of lawsuits—and the bravery of the plaintiffs behind them—prove that individuals can enact change and force powerful corporations like Bayer and Monsanto to take accountability. 

 

The Future of the Roundup Lawsuit 

Monsanto and Bayer have entered into nearly 100,000 settlement agreements for Roundup claims. To date, Bayer has paid out around $11 billion to those who developed health issues related to exposure to the glyphosate weed killer.  

 

Despite this progress, around 67,000 Roundup claims remain pending. Most of these cases are now in state courts. However, about 4,400 cases continue pending in the federal MDL (multidistrict litigation).  

 

Different states have shown varying degrees of support for plaintiffs. Georgia and North Dakota recently backed pesticide manufacturers by passing laws shielding them from certain types of future lawsuits (existing cases are not affected). Meanwhile, a Missouri court upheld a $1.25 million verdict against Bayer in May 2025 in favor of a plaintiff diagnosed with non-Hodgkin lymphoma. 

 

As of June 30, 2025, the US Supreme Court is still considering whether to hear Bayer’s appeal of the Missouri decision. The outcome will significantly shape how state and federal courts handle pending—and future—Roundup lawsuits. 

 

What Can You Do if You Believe You Have Been Harmed by Roundup? 

If you were harmed by Roundup, you may be considering joining the class action lawsuit. Doing so helps to ensure that powerful companies like Monsanto and Bayer are held responsible for their actions. Taking part in the litigation also gives you a chance to hold these corporations accountable for the injuries you sustained. 

 

If you developed any of the above-mentioned cancers or acquired another health condition you believe is linked to Roundup exposure, you could be owed compensation. Our compassionate team can help you on your journey to justice by connecting you with a lawyer in our network of experienced attorneys. Get in touch with us now and find out how you can start the process of seeking justice for your case.

Frequently Asked Questions (FAQ)

The specific requirements listed in the class definition govern who can join a class action lawsuit. These requirements are frequently connected to using a product, working for a specific company, or being exposed to a specific environmental factor for a predetermined amount of time.

The Roundup class action lawsuit is primarily about the health risks associated with the herbicide, particularly its potential to cause cancer. Bayer, the active ingredient in Roundup, is carcinogenic and has led to various health issues in people who've used it.

Generally, anyone who has been diagnosed with a health condition like non-Hodgkin's lymphoma or other subtypes after using Roundup may be eligible to join the class action lawsuit.

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