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Alternative names

Ingestion of high amounts of wax or crayons.

Poisonous Ingredient

In general, wax is not poisonous. If a child eats a small amount of crayon, the wax will pass through the child's system without causing a problem. However, if a child eats a large amount of crayon or wax, the intestines could potentially become blocked.

Where Found

  • Crayons
  • Candles
  • Canning wax
Note: This list may not be all inclusive.


  • Gastrointestinal
    • May cause intestinal obstruction if consumed in large quantities

Home Treatment

Call Poison Control.

Before Calling Emergency

Determine the following information:
  • The patient's age, weight, and condition
  • The name of the product (ingredients and strengths, if known)
  • The time it was swallowed
  • The amount swallowed

Poison Control, or a local emergency number

A poison control center will instruct you if it is necessary to take the patient to the hospital. See Poison Control Centers for telephone numbers and addresses. Bring a sample with you to the emergency room.

What to expect at the emergency room

If it is necessary to go to the emergency room, symptoms will be treated.

Expectations (prognosis)

Recovery is very likely.

Update Date: 2/26/2003

A.D.A.M. editorial. Previous review by Kevin G. Wheeler, M.D., Department of Emergency Medicine, Boston Medical Center, Boston, MA. Review provided by VeriMed Healthcare Network (2/2/2002).

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Last updated: Tue, 06 Jan 2009 00:20:03 GMT