Roundup, one of the most commonly and widely used weed killer, contains Glyphosate as one of its main ingredients. Glyphosate is a systemic and broad-spectrum herbicide that was patented by a U.S. company, Monsanto, in 1970. Bayer acquired Monsanto on June 7, 2018.

After the patent for Monsanto expired in the U.S. in 2000 and outside the U.S. in 1991, many other manufacturers started marketing their glyphosate products leading to a substantial increase in sales and global usage. The chemical name of glyphosate is N-(phosphonomethyl) glycine, and it blocks an enzyme in the plant, which helps in preparing amino acids and proteins, thus, killing the plants within a few days.

Since 2013, there was an awareness created that Roundup may lead to some serious medical conditions. It did confirm in March 2015, when the World Health Organization (WHO) announced that there was a probable link between glyphosate and Non-Hodgkin's lymphoma and other forms of cancer. The speculations are that the manufacturer knew about this linkage and covered its tracks unofficially. In December 2018, the city of Sonoma banned the use of glyphosate-based herbicides on all the city properties. While, in January 2019, French authorities officially stopped the sale of Roundup Pro 360, and in March 2019, the city of Miami banned the use of glyphosate-based herbicides in the city’s properties.     

IARC, considered to be the apex in the field of cancer research, classified glyphosate as a “probable human carcinogen.” According to IARC, Roundup is made up of other ingredients that are toxic in themselves, and are also known to increase the toxicity of glyphosate. Monsanto has known this for many years but still refuses to study the link between cancer and Roundup.

EPA scientists performed an independent evaluation of available data for glyphosate and found that there was no evidence that glyphosate causes cancer. According to EPA, they considered a more extensive and relevant dataset than the International Agency on the Research for Cancer (IARC). EPA’s cancer classification is consistent with other international expert panels and regulatory authorities, including the Canadian Pest Management Regulatory Agency, Australian Pesticide, and Veterinary Medicines Authority, European Food Safety Authority, European Chemicals Agency, German Federal Institute for Occupational Safety and Health, New Zealand Environmental Protection Authority, and the Food Safety Commission of Japan.

Under EPA’s Endocrine Disruptor Screening Program, Glyphosate has undergone Tier I screening. Based on the available information, EPA concluded, using a weight-of-evidence approach, that the existing data do not indicate that glyphosate has the potential to interact with the androgen, estrogen, or thyroid signaling pathways. Following the recent public comments on the risk assessments, EPA released the Glyphosate Proposed Interim Decision for public comment in April 2019. According to the decision, EPA is management measures on pesticide release height, droplet size, and wind speed to address pesticide spray drift. EPA is also proposing measures to prevent or reduce weed-resistance, which includes giving farmers better information on the mode of action, how to report potential weed resistance issues, and the need for scouting to maintain glyphosate as a tool for growers.  


  • Non-Hodgkin's Lymphoma
  • Leukemia
  • Multiple Myeloma
  • Other Cancers Or Illnesses


Government Regulations

  • The U.S. Environmental Protection Agency (EPA) reviewed glyphosate as non-carcinogenic in 1993. Later, in 2016, it initiated another review to check glyphosate's toxicity and arrived at the same conclusion.
  • Contradictory to this, in March 2016, the International Agency for Research on Cancer (IARC) published a report classifying glyphosate as "probably carcinogenic in humans" (category 2A).
  • In July 2017, the California Environmental Protection Agency (CalEPA) added Glyphosate to its Proposition 65 list of carcinogenic chemicals.


Defendant: Monsanto Company

Defense Law Firms:

Hollingsworth LLP

Winston & Strawn LLP

Arnold and Porter Kaye Scholer LLP

Thompson Coburn LLP

Hartline Dacus Barger Dreyer LLP

Stites & Harbison, PLLC

Husch Blackwell LLP

Shumaker, Loop & Kendrick

Wheeler Trigg O'Donnell LLP

Phelps Dunbar LLP

Richards, Layton & Finger, PA

Ogawa Lau Nakamura & Jew

Ahlers & Cooney, P.C.

Parker Milliken Clark O'Hara and Samuelian PC

Seale & Ross, APLC

Hartline Dacus Barger Dreyer LLP

Wilkinson Walsh Eskovitz LLP

Stoel Rives LLP

Phelps Dunbar LLP

Wilkinson Walsh and Eskovitz

Allegations: Lawsuits filed against Monsanto claim glyphosate exposure from Roundup herbicides causes non-Hodgkin’s lymphoma (NHL) in humans, and plaintiffs blame the company for withholding the cancer risks.

Plaintiffs’ Co-lead Counsel

Robin Greenwald - Weitz & Luxenberg, PC

Michael Miller - The Miller Firm, LLC

Aimee Wagstaff - Andrus Wagstaff, PC

Lawsuit Status:

Roundup lawsuits have been consolidated under MDL No. 2741 before Vince Chhabria in the U.S. District Court for the Northern District of California.

Monsanto faces more than 10,000 lawsuits as of March 2019, which includes claims that the weed killer causes several types of cancer like non-Hodgkin’s lymphoma (NHL), b-cell lymphoma, leukemia, and others.

Legal Updates

Important Verdicts & Settlements

August 2018: Dewayne Johnson, a former school groundskeeper who was diagnosed with NHL, was awarded $289 million on August 10, 2018, by a San Francisco jury.

October 2018: San Francisco Superior Court Judge Suzanne Bolanos reduced Dewayne Johnson’s award to $78 million in October 2018.

February 2019: The first bellwether trial went before a jury on February 25, 2019, concerning a lawsuit filed by plaintiff Edwin Hardeman in San Francisco, California.

March 2019: Monsanto’s Summary Judgment Motion to escape a series of bellwether cases lined up against it over the hazards of the controversial weed killer, Roundup was rejected by the MDL Judge.

March 2019: A California man, Edwin Hardeman, was awarded $80 million in damages by a San Francisco jury in the first federal trial against Monsanto, as the jury found that glyphosate exposure from Roundup was the reason for the man's cancer.


  • Extent Of Exposure To Roundup Herbicide, Such As Farm Laborer/Gardener.
  • Details For Roundup Herbicide Usage, Duration And Type Of Contact.
  • Health Complications/Injuries In Medical Records
  • Severity And Treatment For Complications/Injuries In Medical Records
  • Linkage Of Complications/Injuries And Roundup Usage

Medical Record Review and claim validation of Roundup case should take approximately 3 hours in most instances; however, this approximation may vary in cases based on the volume of records.