Skip to Main Content
Ontario Poison Centre




Melatonin is also known as the “sleep hormone”, because it helps to regulate the body’s daily wake-sleep pattern. It is a natural hormone, but is available in tablets, gummy and liquid supplements. Some of these products look and taste like candy and are appealing to children. A one-time ingestion, even in relatively large amounts should not cause serious symptoms.

Poisoning Risk

Low, unless ingested in very high amounts.

Expected Symptoms

  • Mild drowsiness is common.

Home Treatment

  • Provide something to drink for dilution.
  • Call the Poison Centre for further advice.


  • This product should be locked up and out of sight with all of your other household medicines.
  • Always keep this product in its original container.
  • 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).



Back to Top