Essential Oils

Pennyroyal Oil

Toxic for Cats
Danger — seek vet help
🐶
For Dogs
Toxic
🐱
For Cats
Toxic

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Symptoms to Watch For

Vomiting, diarrhea, liver failure, death

What You Need to Know

Extremely toxic. Historically used as a flea repellent but causes severe liver damage and death. One of the most dangerous essential oils for pets.

Source: ASPCA Animal Poison Control
If your cat ingested this, act fast
Call ASPCA Poison Control: (888) 426-4435 or your emergency vet immediately.
View full emergency guide →

Frequently Asked Questions

Is pennyroyal oil safe for cats?

Pennyroyal Oil is considered TOXIC for cats. Extremely toxic. Historically used as a flea repellent but causes severe liver damage and death. One of the most dangerous essential oils for pets.

What are the symptoms if my cat eats pennyroyal oil?

Symptoms may include: Vomiting, diarrhea, liver failure, death.

What should I do if my cat eats pennyroyal oil?

Contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. Do not induce vomiting unless instructed by a professional.

Keep Your Pet Safe

Protect your furry friend with pet-safe alternatives and emergency supplies recommended by veterinarians.

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