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Is Yew Toxic to Cats? Safety Verdict and What to Do

PawAI Lab
4 min read

Learn whether yew poses a toxicity risk to cats, what signs may appear after exposure, and what immediate steps to take if your cat may have been exposed.

Quick Answer

Yes, yew is toxic to cats. Yew is a common landscaping plant. All parts are extremely toxic except the fleshy berry. Even dried trimmings remain toxic. If your cat may have been exposed, contact a veterinarian or animal poison-control service right away, even if no signs are visible yet.

Before using any tool, contact a veterinary professional if your cat may have been exposed.

  • US: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • UK: Animal PoisonLine (01202 509000) or your nearest veterinary emergency clinic
  • Canada: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • AU: Animal Emergency Centre or your regular vet
  • EU: Contact your nearest veterinary emergency service

TOXICITY CHECKER

Check whether a substance may be harmful to your pet and get prioritized safety steps.

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This tool provides general safety information and does not replace veterinary advice in an emergency.

Safety Verdict

Toxic. Taxine alkaloids block calcium and sodium channels in cardiac cells, disrupting electrical conduction and potentially causing fatal cardiac arrest. All parts are toxic except the fleshy berry aril.

Yew is a common landscaping plant. All parts are extremely toxic except the fleshy berry. Even dried trimmings remain toxic.

What It Is

Yew (Taxus species) contains taxine alkaloids that block cardiac calcium and sodium channels. All parts are extremely toxic except the fleshy berry aril, and ingestion can cause sudden cardiac arrest.

Why It May Be Harmful

The toxic principle in yew is taxine alkaloids. Taxine alkaloids block calcium and sodium channels in cardiac cells, disrupting electrical conduction and potentially causing fatal cardiac arrest. All parts are toxic except the fleshy berry aril.

Signs of toxicity may include:

  • Tremors
  • Difficulty breathing
  • Weakness and collapse
  • Irregular heart rate
  • Seizures
  • Sudden death
  • Vomiting
  • Drooling

Timeline: Signs can appear rapidly, sometimes within minutes.

Often fatal. Can cause sudden cardiac arrest.

What to Do If Your Cat Eats It

  1. Contact a veterinarian or animal poison-control service immediately.
  2. Remove any remaining substance from your cat's reach.
  3. Do not induce vomiting unless instructed by a veterinarian.
  4. Do not give food, milk, charcoal, or home remedies.
  5. Bring the substance, plant, or packaging for identification.

Information to have ready when you call:

  • Your cat's age, approximate weight, and any health conditions
  • The name or type of yew and the estimated amount consumed
  • When the exposure likely occurred
  • Any current symptoms your cat is showing
  • The product packaging or a photo of the plant if applicable

Any ingestion should be treated as an emergency. Do not wait for signs.

When to Contact a Veterinarian

Contact a veterinarian or animal poison-control service immediately if your cat may have been exposed to yew. Do not wait for symptoms to develop.

Emergency signs that require urgent veterinary attention:

  • Irregular heart rate
  • Collapse
  • Difficulty breathing
  • Seizures
  • Sudden weakness

Non-urgent follow-up: Any ingestion should be treated as an emergency. Do not wait for signs.

FAQ

Are all parts of the yew toxic?

All parts are toxic except the fleshy red berry. The seed inside the berry is also toxic. Leaves and stems contain the highest concentrations.

How quickly does yew poisoning affect cats?

Signs can appear very rapidly, sometimes within minutes. Cardiac arrhythmia can lead to sudden death. Immediate treatment is essential.

Can yew poisoning be treated?

Treatment is challenging but possible with prompt intervention including decontamination, IV fluids, and anti-arrhythmic medications.

TOXICITY CHECKER

Concerned about another plant, food, medication, or household item around your cat? Get general, species-aware safety information to help you decide your next step.

Try Toxicity Checker

This tool provides general safety information and does not replace veterinary advice.

Sources

Disclaimer

This article and the PawAI Toxicity Checker tool provide general safety information and do not replace examination, diagnosis, or treatment by a licensed veterinarian. If your cat may have ingested a toxic substance, contact a veterinarian, emergency clinic, or animal poison control immediately.