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If your dog ate pennyroyal — do this now

  1. Take the plant away and clear any pieces from their mouth.
  2. Do not induce vomiting unless told to by a professional.
  3. Call your vet now. If you cannot reach one, a poison-control line will triage you — ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both services charge a fee.

Pennyroyal is toxic to dogs (ASPCA).

Pet emergency

My dog ate Pennyroyal — what to do

Step by step

  1. Take pennyroyal away and remove any plant material from your dog's mouth so they cannot eat more.
  2. Note roughly how much was eaten and when — this helps the vet judge the risk.
  3. Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
  4. Call your vet, or a poison-control line — (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both charge a consultation fee. Follow their advice.
  5. Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.

This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet — or the ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK.

My dog ate pennyroyal — FAQ

Is pennyroyal poisonous to dogs?

Yes — Pennyroyal (Mentha pulegium) is regarded as toxic to dogs, based on genus- and family-level toxicity data. Pennyroyal is among the most dangerous mints: it falls under the ASPCA's toxic Mint (Mentha sp., Lamiaceae) listing, and its essential oil is rich in pulegone, a potent hepatotoxin. Ingestion can cause liver damage, seizures and death — cats are especially vulnerable, and the concentrated oil is hazardous to people too. Never use it as food or near grazing pets.

How serious is it if my dog ate pennyroyal?

Pennyroyal is toxic to dogs and reactions can be significant, so treat any ingestion as urgent. Call your vet, or (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK, straight away rather than waiting to see if symptoms develop.

What symptoms should I watch for?

Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Pennyroyal is among the most dangerous mints: it falls under the ASPCA's toxic Mint (Mentha sp., Lamiaceae) listing, and its essential oil is rich in pulegone, a potent hepatotoxin. Ingestion can cause liver damage, seizures and death — cats are especially vulnerable, and the concentrated oil is hazardous to people too. Never use it as food or near grazing pets. Any worsening or persistent symptoms warrant an immediate vet visit.

Should I make my dog vomit?

No — do not induce vomiting unless a vet or a poison-control specialist specifically tells you to. The wrong action can make things worse. Call your vet, or (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK, and follow professional advice.

How do I stop this happening again?

Keep pennyroyal well out of reach, or swap it for an ASPCA non-toxic plant — see the best dogs-safe plants list.

Type any plant to see what the ASPCA says about it and your dog.

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