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Ontario Poison Centre

Chalk

Chalk

Description

Chalk (sidewalk, blackboard) is made of calcium salts and is not harmful in unintentional ingestions.

Poisoning Risk

None/low.

Expected Symptoms

  • Possible upset stomach (discomfort, nausea, isolated episode of vomiting or diarrhea).

Home Treatment

  • Provide something to drink for dilution.
  • If you have questions, call the Poison Centre.

Remember:

  • Every case is different. OPC is available 24hrs/day to provide information for your individual situation. Call 1-800-268-9017 (Toll-free) or 416-813-5900 (Local).

 


 

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