Emergency · Cats

My cat ate something toxic: what to do in the first 10 minutes

Cats are far more sensitive to common household toxins than dogs. A single paracetamol tablet can be fatal. Pollen from a lily that brushed against the fur, then groomed off, can cause kidney failure within 36 hours. Tea tree oil applied to the skin or licked off can be fatal.

If you have any suspicion of exposure — chewed plant material, a spilled medication, a tipped essential-oil diffuser, a chewed rodenticide block — call a vet or the poisons helpline immediately. Do not wait for signs. Many cat poisonings have a silent window where the cat looks fine and the damage is already happening.

The single most important fact about cat toxin exposure: **lilies kill cats**. All parts of true lilies (Lilium and Hemerocallis genera) cause acute kidney failure. Pollen on the fur counts. The water in the vase counts. This is the most important thing to know about cats and poisoning.

How to recognise it

  • You saw your cat chew, lick, or roll in something potentially toxic
  • You found chewed packaging — medication blister, rodent bait, plant cuttings
  • Pollen visible on the cat's face or paws (especially yellow lily pollen)
  • Drooling, vomiting, or pawing at the mouth
  • Sudden lethargy, hiding, or refusal to eat
  • Tremors, twitching, seizures, or stiffness
  • Pale, blue, brown, or muddy gums (paracetamol/methaemoglobinaemia signs)
  • Increased thirst with vomiting — early lily-toxicity sign

First aid — step by step

  1. Call a vet or the Animal Poisons Helpline immediately

    Do this even before checking the cat. The helpline triages by phone — many cases are managed without a visit, but the ones that need a visit need to happen now.

  2. For suspected lily exposure: wash off pollen and go now

    Wipe pollen from fur with a damp cloth, then take the cat to a vet immediately. Lily-induced kidney failure is reversible only if treated within hours. Do not "wait to see what happens."

  3. Identify exactly what was eaten or contacted

    Bring the packaging, plant cutting, or product. Take a clear photo of the active ingredient and strength. For a flea product, bring the box — many dog-only products are deadly on cats.

  4. Move the cat to a quiet, safe space

    Confine in a carrier or small room. Keep warm — toxic cats lose body heat fast. Do not try to make them drink or eat.

  5. Do NOT induce vomiting

    Vomiting in cats is much harder and riskier to induce than in dogs. Hydrogen peroxide is *not* recommended in cats. Wait for vet instruction; in practice, decontamination is usually done in clinic.

  6. Bring the cat to the vet with the product

    Even chewed remains help. For topical exposures (oil, flea product), do not bathe at home unless instructed — wrap loosely in a towel for transport.

What NOT to do

  • Never give paracetamol, ibuprofen, or aspirin to a cat — all are dangerous, and paracetamol is rapidly fatal.
  • Never apply dog flea products to a cat — pyrethrin/permethrin products are commonly lethal.
  • Never use tea tree oil or other essential oils on or near a cat.
  • Do not bathe a cat with topical exposure unless told — improper handling spreads the toxin.
  • Do not assume "natural" or "herbal" remedies are safe — many are not.
  • Do not wait for signs — most fatal cat toxins have a silent window of hours.

Safe transport to the vet

  • Call ahead — the vet will prepare IV fluids and antidotes.
  • Transport in a secure carrier; line with a towel in case of vomiting or urination.
  • Bring the product, packaging, or plant cutting.
  • Keep the cat warm; cover the carrier with a light blanket.
  • Avoid loud voices and rapid movement — stress worsens many toxicities.
  • If the cat is collapsed, lay on their side in the carrier, head slightly lower than the body to prevent aspiration.

How to prevent it next time

  • No lilies in any home with cats, ever. Refuse them in delivered bouquets.
  • Store all human medications in closed cabinets; never on bedside tables.
  • Use cat-specific flea and tick products only — never share dog products.
  • Avoid essential oils in homes with cats: tea tree, eucalyptus, pine, citrus, peppermint, pennyroyal, wintergreen, and many others are toxic.
  • Never use rat bait in a home with a cat, even in "sealed" bait stations.
  • Antifreeze is lethal in small amounts — store sealed, clean spills immediately.
  • Save the poisons helpline in your phone now, before you ever need it.

Frequently asked questions

My cat brushed against a lily — what do I do?

Treat it as an emergency. Wipe the pollen off with a damp cloth (don't let the cat groom it off) and call a vet immediately. Lily kidney failure is reversible only with aggressive IV fluid therapy started within hours.

Is one paracetamol tablet really fatal?

Yes. Cats lack the liver enzyme to safely metabolise paracetamol. A standard tablet can cause fatal red-blood-cell damage and liver failure. Never give human pain medication to a cat.

I diffused essential oils — could my cat be poisoned?

Yes. Many essential oils are toxic to cats, especially tea tree, eucalyptus, pine, citrus, peppermint, and wintergreen. Direct skin exposure or grooming oil off the fur is most dangerous; airborne diffusion can also cause respiratory or neurological signs in sensitive cats.

I accidentally used a dog flea product on my cat — what now?

Emergency. Permethrin and pyrethrin in dog products are commonly fatal in cats. Take the cat to a vet now; do not bathe at home — handling spreads the product and worsens absorption.

Should I induce vomiting at home?

No. Vomiting induction in cats is difficult, often ineffective, and risky. Decontamination is done in clinic with proper drugs and supportive care.