Texas Monsanto Roundup Cancer Lawsuits and Lawyers

Serving Clients Nationwide From Our Texas Offices in Corpus Christi, San Antonio, Austin, and Dallas

Research and thousands of lawsuits suggest Monsanto’s Roundup weed killer is associated with an increased risk of certain types of cancer. So far, plaintiffs have been awarded about $11 billion. If you have been exposed to Monsanto’s Roundup and developed cancer, contact the lawsuit lawyers at Thomas J. Henry in Texas for your free consultation.

The History of Monsanto’s Roundup Weed Killer

In 1970, Monsanto developed glyphosate to kill weeds and grasses that hinder crop growth. They marketed the chemical as Roundup weed killer, and by 2007, it had become the most widely used herbicide in the United States with an estimated 1.4 billion pounds being used in more than 160 countries every year.

The herbicide became especially popular with the introduction of genetically modified organisms (GMOs) that are resistant to glyphosate, including corn, cotton, and soybeans. These glyphosate-resistant or “Roundup-Ready” plants aided farmers by allowing them to spray their fields with weed-killing herbicides without destroying their crops.

Cancers Associated With Monsanto’s Roundup

Despite its widespread use, the safety of Monsanto’s Roundup has been debated for several years. Thousands of lawsuits have been filed alleging that people have developed many types of blood cancers after using the product, including:

  • Anaplastic Large T-Cell Lymphoma
  • Follicular B-Cell Lymphoma
  • Mediastinal B-Cell Lymphoma
  • Large B-Cell Non-Hodgkin’s Lymphoma (NHL)
  • Mantle Cell Lymphoma
  • High-Grade Mature B-Cell Lymphoma
  • Hairy Cell Leukemia
  • Acute T-Cell Lymphoblastic Lymphoma
  • Thymic Lymphoma
  • Chronic Lymphocytic Leukemia

Studies on Monsanto Cancer Risks

Studies conducted to discover cancer risks associated with Roundup have produced conflicting results.

In 2015, the International Agency for Research on Cancer (IARC) released an investigation in which they researched the safety of five pesticides on the market to determine if they were carcinogenic. Glyphosate was among the pesticides analyzed during this investigation.

The results revealed that glyphosate is “probably carcinogenic to humans,” based on convincing evidence that the pesticide had created tumors and cancer in laboratory animals. Particularly, the IARC found that exposure to glyphosate led to non-Hodgkin lymphoma, leukemia, B-cell lymphoma, and multiple myeloma.

The U.S. Environmental Protection Agency (EPA) had also labeled glyphosate as a probable human carcinogen back in 1995 but later changed their beliefs, arguing in 2017 that the pesticide is not toxic to humans or animals. Monsanto’s representatives also argue that their herbicide poses no cancer threat.

With studies producing conflicting results, it is hard to determine whether glyphosate can truly cause cancer, but the number of lawsuits filed as a result of the issue are telling.

According to Bayer’s 2019 Half-Year Financial Report, approximately 18,400 cancer patients and their families have filed lawsuits against Monsanto, claiming the company has been aware of the potential dangers of glyphosate and failed to properly warn consumers. Nonetheless, Monsanto refutes these claims.

Recent Monsanto Verdicts

As of summer 2022, Monsanto/Bayer have paid about $11 billion to settle nearly 100,000 Roundup cancer lawsuits in Texas and nationwide. Major milestone cases include:

  • Johnson v Monsanto (August 2018) — The 46-year-old plaintiff was awarded $289.2 million, including $250 million in punitive damages, after being diagnosed with non-Hodgkin’s lymphoma with large cell transformation. He had been using Roundup products on the school properties where he worked as a groundskeeper for many years. Though the jury had initially awarded $289 million, the judge later capped the punitive damage award, reducing the total verdict to $78.5 million.
  • Hardeman v Monsanto (February 2019) — $80.2 million. The plaintiff, a 70-year-old male from Sonoma County, California, was awarded $80 million, including $75 million in punitive damages, in 2015 after he was diagnosed with non-Hodgkin lymphoma. This was the first Federal Court case from the Roundup MDL to go to trial. The plaintiff and his wife lived on 56 acres that were once used as an exotic animal refuge. The plaintiff had been using Roundup products to treat poison oak, weeds, and overgrowth on his property from 1980 until 2012
  • Pilliod v Monsanto (May 2019) — $2.055 billion. The plaintiff living in Livermore, California, was awarded a staggering verdict of $2,055,206,173, which included $2 billion in punitive damages, after he developed large B-cell non-Hodgkin lymphoma and his wife was diagnosed with central nervous system lymphoma which later progressed to NHL. Both the plaintiff and his wife had been using Roundup products regularly around their home and occasionally at other properties.

Was Your Cancer Caused by Monsanto Roundup?

If you or a loved one have suffered an injury or illness due to a defective or dangerous product, contact Thomas J. Henry. Over two decades of experience handling a multitude of defective product cases and extensive legal and financial resources allow us to provide our clients with truly dynamic legal representation. Thomas J. Henry has a proven track record of achieving real results for clients devastated by recalled products.

Let us help you recover the compensation you are entitled to. Our firm has offices in Corpus ChristiSan Antonio, Austin, Dallas, and Houston, serving clients across Texas and nationwide. Contact us today for a free case review.


Contact Us for a Free Case Review
Read More - Side Contact Form

Contact Us for a Free Case Review
Contact Form

Your Questions Answered

We have straight answers to difficult questions
to help you make critical decisions, navigate
legal process and help you get justice.

Following an accident, there are always more questions
than answers. At Thomas J. Henry, we’re here to answer
any questions you have about your injury case.

A tort is a civil wrongful act committed by a person or company that results in harm to another person. A mass tort is when multiple victims are injured by the same single tort.
A court will consider if a mass tort lawsuit is permissible by determining:
  • whether a large number of plaintiffs are involved
  • whether the plaintiffs are located near or far from each other;
  • whether the injuries sustained are similar among the plaintiffs;
  • whether the claims arose from the same cause (defective toy, car part, oil spill, etc.)
  • Defective products, such as car parts, toys, or other consumer goods.
  • Pharmaceutical drugs, such as those that are later linked to severe or fatal health consequences
  • Environmental hazards, such as polluted water sources contaminated by nearby industrial sites or an oil leak.
Thousands of lawsuits across the country may be filed with a mass tort. These lawsuits are filed in numerous federal district courts. In a mass tort, federal judges will consolidate the thousands of lawsuits into a single proceeding. One judge in a single federal district court will oversee litigation, allowing for consistent rulings and a more expeditious process for the plaintiffs.
In a mass tort, each plaintiff (injured person) has an individual claim resulting from their unique damages. In a class action, many plaintiffs are considered collectively. Similarly, in a mass tort, each individual's claim "value" is unique to the severity of their injuries. In a class action, plaintiffs generally suffer injuries of similar severity, resulting in the same amount of compensation value.
If you have been injured or suffered illness due to a recalled drug, having an expert witnesses can be essential to proving your claim. Thomas J. Henry has spent decades building professional relationships with leading experts including:
  • Pharmacologists
  • Toxicologists
  • Regulatory Compliance Consultants
  • Forensic toxicologists
  • Drug Injury Causation Experts
  • Biomechanics

Why Choose Us

Dollar signs with a strike-through

No Win, No Fee

Thomas J. Henry offers a "No Fee Promise." We work on a contingency fee basis which means you do not pay our firm any fees unless and until we win your case. Learn more.

Family standing next to a house and car with a checkmarked shield icon

Help with Bills

If you've been hurt, you may have a damaged vehicle or be unable to work. We can help get you a rental car if your vehicle is damaged and even advance money on qualified cases.
Car, truck and motorcycle icons

Full-Service Injury Firm

We handle all types of injury cases, including vehicle accidents, slip and falls, medical malpractice, vehicle recalls, product recalls, pharmaceutical cases, mass tort, and more.
Car with TJH logo zooming

We Come to You

If you've been hurt, you may not be able to come into our offices to speak to an attorney. Don't worry, we will come to you wherever you are – at home, work, or hospital.
Why Choose Us - Over 250 Attorneys Available

Largest Injury Firm in Texas

We have 250+ personal injury attorneys available 24/7 to help you and your family. We have the power and resources to handle any case. Call now for your free case review.

Silhouette of the United States icon

Nationally Recognized

Our firm wins top verdict awards each year and has been featured in Texas Monthly, Bloomberg BusinessWeek, Newsweek.com, Forbes, Fortune, Parenting Magazine and more.
Starred ribbon on a document

Top Verdicts & Settlements

We win some of the top verdicts, settlements, and judgments in the country. Recent recoveries include $50 million for a trucking accident, $35 million for a trucking accident and $30.2 million for a vehicle recall accident.

Recent Results

This is just a small sampling of the results we have obtained for our clients.
Please click through to view more verdicts, settlements, and judgments.
Trucking Accident

$50 Million



Trucking Accident

$35 Million


Product Liability

$30.22 Million


Premises Liability

$14.75 Million


Medical Malpractice

$12.7 Million


Company Vehicle Accident

$10 Million



Help & Information

Thomas J. Henry Automobile Crash Statistics Infographic

Car Accident Accident Facts and Statistics

Every year, millions of Americans are injured in crashes involving cars, trucks, and SUVs.
Thomas J. Henry FAQs - Texas Auto Accidents

Are punitive damages available in a Texas auto accident case?

Learn about recoverable damages available to you after suffering an auto accident injury.
Thomas J. Henry Legal Guide "A Guide to Texas Personal Injury Law"

Texas Personal Injury Legal Guide

Learn about the car accident claim process in Texas and how best to protect your rights.

Our Practice Areas

Representing injured victims from across the United States.


Tornado tearing through water

Tornado Devastates Houston, Leaves 4 Dead

FOX Weather reports over 1 million people left without power and at least 4 dead due to severe thunderstorms on Thursday night in the Houston area.  Storm Details Several thunderstorms swept through Eastern Texas and into Louisiana late Thursday night. Winds reached speeds of 78 miles per hour, knocking over trees, blowing out high-rise building […]
Green 18-wheeler traveling on open road

18-Wheeler Accident Leaves One Dead, Bexar County

KSAT reports that one man was pronounced dead after colliding with an 18-wheeler along Highway 90 in west Bexar County on Monday afternoon. Details of the Accident The crash occurred around 3:30 p.m. at the Highway 90 and Highway 211 intersection, near Medina Valley.  The Bexar County Sheriff’s Office reports that a small box truck […]
Low Angle Photography of American Flag

Gratitude in Action: Navigating Memorial Day with Respect and Safety

Honor our nation’s veterans with Thomas J. Henry Law! Originally called Decoration Day, Memorial Day’s origins go back to as early as the civil war. However, it did not become an official federal holiday until 1971. According to History.com, Memorial Day is an American holiday, observed on the last Monday of May, honoring the men […]

San Antonio Parking Lot Car Accident Leaves One Woman Hospitalized

KSAT reports that a woman was hospitalized after she was hit by a vehicle in a parking lot on San Antonio’s East Side late Monday night. Details of the Parking Lot Accident The San Antonio Police Department stated that the incident occurred around 11 p.m. at a Walmart store in the 2100 block of Southeast […]

Customer Reviews

Julie Elliot

Austin | 1 year ago

Very professional and overall great experience!

Shannon Peterson

Austin | 1 year ago

Very professional and courteous staff. Gets the job done swiftly and promptly! Friendly and always treats you with respect.

C. Files

Austin | 1 year ago

Truly was always there when I reached out. White glove service.

Do you really want to end conversation?
chat-icon Live chat
avatar Waiting