5Cats can die within 24 hours of ingesting paracetamol, with the timeframe depending on the dose consumed. Cats lack the ability to metabolise paracetamol effectively, leading to rapid toxin buildup. Even small amounts can be fatal. Early symptoms include loss of appetite, vomiting, drooling, followed by mucous membrane discolouration, rapid heart rate, and lethargy. Immediate veterinary attention is critical to induce vomiting and administer an antidote such as N-acetylcysteine (diluted to 5% solution) to counteract poisoning.
Paracetamol is highly toxic to cats due to their limited glucuronidation capacity, a liver process essential for breaking down the drug. Ingested paracetamol converts into toxic metabolites that damage red blood cells and liver tissue. Without prompt treatment, organ failure and death can occur within hours.
- Recognise the symptoms: Watch for vomiting, drooling, pale or blue-tinged gums, rapid breathing, and lethargy.
- Seek emergency veterinary care immediately: Do not attempt home remedies. Time is critical.
- Treatment typically involves: Inducing vomiting if ingestion was recent, followed by activated charcoal to absorb toxins. Intravenous N-acetylcysteine is the standard antidote.
- Hospitalisation may be required for supportive care including oxygen therapy, IV fluids, and blood monitoring.
Prevention is key - always store human medications securely away from pets. Never give paracetamol to cats, as there is no safe dose. Consult a vet for cat-safe pain relief alternatives.

March 15, 2026
