Medical Health Encyclopedia

Windshield washer fluid


InjuryDiseasesNutritionPoison
SymptomsSurgeryTestSpecial Topic
Overview Symptoms Treatment Prevention
Home Treatment

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

If possible, determine the following information:

  • Patient's age, weight, and condition (for example, is the person awake or alert?)
  • Name of the product (ingredients and strengths, if known)
  • Time it was swallowed
  • Amount swallowed

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


Poison Control, or a local emergency number

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

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:

  • Dialysis to remove the poison from body in severe poisonings
  • Medicines called folinic acid and bicarbonate
  • Medicine (antidote) to reverse the effect of the poison (usually fomepizole and ethanol)
  • Tube through the mouth or nose into the stomach to wash out the stomach (gastric lavage)

Expectations (prognosis)

Methanol, the main ingredient in windshield washing fluid, is extremely poisonous. As little as 2 tablespoons can be deadly to a child. About 2 to 8 ounces can be deadly for an adult. Blindness is common and often permanent despite medical care.

The ultimate outcome depends on how much poison 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.



Review Date: 02/02/2011
Reviewed By: Eric Perez, MD, Department of 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.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

Find a Therapist
PR Newswire