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DogCatEmergencies

Suspected poisoning

If a pet may have swallowed, inhaled or contacted a toxic substance, do not wait for signs. Some toxins can rapidly and silently injure the nervous system, heart, liver or kidneys, and delay may become life-threatening.

Emergency

Go to a clinic immediately if

  • There is a seizure, breathing difficulty, collapse, altered awareness or known ingestion of a toxic substance
  • Do not wait for signs after possible exposure to antifreeze, rodenticide, human medicine, lilies in a cat, or another known toxin
Contact a veterinary clinic

Possible signs

  • Vomiting, drooling, tremors, confusion, weakness, poor coordination or unusual behaviour after a possible exposure
  • Signs can be delayed; take a known or suspected exposure seriously even while the pet appears normal

What it is

The course of poisoning depends on the substance, dose, route of exposure and time elapsed. The same product can carry very different risks for different animals, and some exposures cause no early signs. The exact product and timing help the veterinarian choose the safest response, so keep the package or take a clear photograph of its label.

What to expect at the veterinarian

When contacting the clinic, give the product, active ingredient, concentration, possible amount, route and time of exposure; bring the package or a clear label photograph. The veterinarian will decide whether gastrointestinal decontamination, skin washing or a specific antidote is safe. Assessment may include blood pressure, ECG and repeated blood or urine tests because some injury is delayed.

Sources
  • Guideline or consensus statement. Pet First Aidebusiness.avma.org

Updated: 26 Oct 2026