Is Calpol toxic to cats?
No. Calpol is a paracetamol-based children's medicine. It's liquid, sweet, and easy for a cat to lap up — and it's as deadly as any other form of paracetamol.
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Key facts
- Verdict: No — dangerous to cats. Calpol should never be given deliberately.
- Category: Human painkiller
- Onset: Signs can start 0–4 hours — see the full timeline below.
- If it's already happened: Call your vet now, or the Animal PoisonLine on 01202 509000 (24/7, charges apply) — see the emergency steps below.
If your cat has just eaten calpol
- Emergency — treat as paracetamol poisoning.
- Note the volume and strength on the bottle (usually 120mg/5ml or 250mg/5ml 6+ version).
- Call your vet immediately. Do not delay.
- If you can't reach a vet, call Animal PoisonLine (01202 509000) — paid triage, 24/7.
What's the full picture?
Calpol is the UK's most popular children's paracetamol product. The strawberry-flavoured liquid is often accidentally spilled, left in a syringe, or squirted by a child onto a surface a cat then licks.
Calpol contains paracetamol. The toxic dose is the same as for tablets — about 10mg per kg of cat body weight. Standard Calpol infant suspension contains 120mg per 5ml, so less than 2ml can be a lethal dose for a 4kg cat.
Calpol is only one of several paracetamol products found in UK homes — Panadol, Disprol, and combination cold remedies like Lemsip all carry exactly the same danger to cats. The brand doesn't matter; the paracetamol does. If your cat has swallowed any of them, in any amount, ring your vet or the Animal PoisonLine straight away.
Symptoms to watch for
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Cat owner essentials
For prescription-strength flea, tick and wormer protection, Best Vet Care ships direct from licensed vets — no vet visit required. (affiliate link)
A lockable medicine box is the simplest way to keep human tablets out of reach of a curious cat.
Recommended for cat owners
Related
Sources referenced for this guidance
- Veterinary Poisons Information Service (VPIS) — UK clinical toxicology reference used by vets
- International Cat Care — feline-specific clinical guidance
- BSAVA — British Small Animal Veterinary Association reference materials
- Merck Veterinary Manual — professional veterinary reference
About this guidance
Every entry on this site is compiled from published UK veterinary toxicology sources — International Cat Care, Veterinary Poisons Information Service (VPIS) references, RCVS-registered practice materials, and peer-reviewed feline medicine literature. Where the evidence is mixed, we err on the cautious side because cats are unusually sensitive to many common substances that are harmless to humans and even to dogs.
This is general information written for UK cat owners. It is not personalised veterinary advice for your specific cat, their age, weight, medical history, or the exact exposure you're dealing with. If your cat has eaten something or is unwell, call your vet first. The Animal PoisonLine on 01202 509000 is available 24/7 for a small fee and can tell you whether an emergency visit is needed.
Entries are reviewed and updated as new research emerges. Spotted an error? Let us know — corrections are investigated and applied within 24 hours. For more context on how we work, see about and our full disclaimer.
Last reviewed: · By the What Can My Cat Eat? editorial team