In brief
Cats process several substances differently from people. Lilies, paracetamol and antifreeze are particularly dangerous, and even small exposures can require immediate treatment.
High-risk exposures
- Lilies: pollen, leaves, petals and vase water can cause acute kidney injury.
- Paracetamol: extremely toxic to cats; never give human painkillers without veterinary instruction.
- Antifreeze: ethylene glycol can cause fatal kidney failure and treatment is time-critical.
- Onion, garlic and related plants: can damage red blood cells.
- Dog flea products containing permethrin: can cause tremors and seizures in cats.
Other products to treat cautiously
Chocolate, caffeine, alcohol, nicotine products, certain essential oils, cleaning agents and some human medications may cause poisoning. Grapes and raisins are a recognised risk in dogs; because safety in cats is uncertain, they should not be offered.
What to do
Remove access, keep the packaging or take a photograph, and call your veterinarian or emergency clinic immediately. Do not induce vomiting or give milk, oil, salt or charcoal unless a veterinarian specifically instructs you to do so.
Prevention
Store medication in closed cupboards, check bouquets for lilies, use only cat-safe parasite products and clean spills promptly. Remember that cats can ingest substances from their paws while grooming.
Conclusion
If a potentially toxic exposure has occurred, do not wait for symptoms. Early advice and treatment can make the difference.