Herbicide and Weed Poisoning | University of Maryland Medical Center

Posted February 19, 2018

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Many kills contain dangerous chemicals that are harmful if swallowed. This article addresses poisoning caused by ingestion of a chemical called glyphosate.

This is for informational purposes only and not for use in the treatment or management of a true toxic exposure. If you have an exposure, you should call the local emergency number (such as 911 in the United States) or the National Poison Control Center at 1-800-222 -1222.

Alternative Names

Poisoning with Weedoff; Glyphosate is found in various forms, including the trademarks listed on the following list:

  • Roundup
  • Bronco
  • Glifonox
  • Kleen-up / li>

Note: This list may not include all of them.


  • Cyanosis (bluish lips and fingernails - rarely)

  • Headache
  • Irritation in the mouth and throat
  • Low blood pressure
  • Nausea
  • Vomiting (may be bloody)
  • Weakness

Home Treatment

Seek immediate medical attention and DO NOT induce vomiting unless directed to do so by Poison Control or a health care professional.

If the chemical has come in contact with the skin or eyes, rinse thoroughly with water for at least 15 minutes.

Before calling emergency ias

Determine the following information:

  • Patient's age, weight and condition
  • Product name with ingredients and strength if known
  • Time of ingestion
  • Amount ingested

This is a free and confidential service. All local toxicology centers in the United States use this number. You should call if you have any concerns about poisoning or how to prevent them. It does not necessarily have to be an emergency; you can call for any reason, 24 hours a day, 7 days a week.

Herbicide and Weed Poisoning | University of Maryland Medical Center
Herbicide and Weed Poisoning | University of Maryland Medical Center

If possible, bring the container of the substance to the hospital.

What to Expect at the Emergency Room

The doctor will measure and monitor the vital signs of the patient, including temperature, pulse, respiratory rate and blood pressure. Blood and urine tests will be done. The patient may receive:

(p <0.05).

Tube through the nose to the stomach to empty the stomach (gastric lavage) for several days


Patients who continue to improve during the first 4 to 6 hours after receiving medical treatment usually recover.


Aaron CK. Pesticides. In: Marx J, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice . 6th ed. St Philadelphia, Pa: Mosby Elsevier; Eric Perez, MD, Department of Health and Human Services, Department of Health and Human Services. Emergency Medicine, St. Luke's-Roosevelt Hospital Center, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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