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Windshield washer fluid

Contents of this page:

Definition    Return to top

Windshield washer fluid is a brightly colored liquid made of methanol, a poisonous alcohol. Some young children may mistake the fluid for juice, which can lead to accidental poisoning. Even small amounts can cause significant damage. This article discusses poisoning from swallowing windshield washer fluid.

See also: Methanol poisoning

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

Poisonous Ingredient    Return to top

Where Found    Return to top

Symptoms    Return to top

Home Care    Return to top

Seek immediate medical help. DO NOT make a person throw up unless told to do so by Poison Control or a health care professional.

Before Calling Emergency    Return to top

If possible, determine the following information:

However, DO NOT delay calling for help if this information is not immediately available.

Poison Control    Return to top

The National Poison Control Center (1-800-222-1222) can be called from anywhere in the United States. This national hotline number will let you talk to experts in poisoning. They will give you further instructions.

This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.

See: Poison control center - emergency number

What to Expect at the Emergency Room    Return to top

The health care provider will measure and monitor the patient's vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated as appropriate. The patient may receive:

Outlook (Prognosis)    Return to top

Methanol, the main ingredient in windshield washer fluid, is extremely poisonous. As little as 2 tablespoons can kill a child, while 2 to 8 ounces can be deadly for an adult. How well a patient does depends on how much was swallowed and how soon treatment was received.

Although many windshield washer fluids are a watered-down form of methanol, they can still be dangerous if swallowed.

References    Return to top

Henry K. Deadly Ingestions. Pediatr Clin North Am. 2006; 53(2): 293-315.

Michael JB. Deadly pediatric poisons: nine common agents that kill at low doses. Emerg Med Clin North Am. 2004; 22(4): 1019-50.

Goldfrank LR, ed. Goldfrank's Toxicologic Emergencies. 8th ed. New York, NY: McGraw Hill; 2006.

Update Date: 2/3/2009

Updated by: John E. Duldner, Jr., MD, MS, Assistant Professor of Emergency Medicine, Department of Emergency Medicine, Samaritan Regional Health System, Ashland, Ohio. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 1997-2009, A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.