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If your cat ate sea pea — 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 or the ASPCA Animal Poison Control Center on (888) 426-4435 now.

Sea Pea is toxic to cats (ASPCA).

Pet emergency

My cat ate Sea Pea — what to do

Step by step

  1. Take sea pea away and remove any plant material from your cat'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 the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and 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.

My cat ate sea pea — FAQ

Is sea pea poisonous to cats?

Yes — the ASPCA lists Sea Pea (Lathyrus japonicus) as toxic to cats. The entire Lathyrus genus contains the neurotoxic amino acid beta-aminopropionitrile (BAPN), particularly concentrated in the seeds. The ASPCA lists Lathyrus (sweet pea) as toxic to horses (aminoproprionitrite causing weakness, lethargy, tremors, seizures, and possible death); effects in dogs and cats are generally gastrointestinal at low doses but neurological damage (lathyrism) is possible with repeated or large-dose ingestion. Treat all Lathyrus as toxic to pets and contact a vet or the ASPCA Animal Poison Control Center (888-426-4435) if ingestion occurs.

How serious is it if my cat ate sea pea?

Sea Pea is toxic to cats and reactions can be significant, so treat any ingestion as urgent. Call your vet or poison control on (888) 426-4435 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. The entire Lathyrus genus contains the neurotoxic amino acid beta-aminopropionitrile (BAPN), particularly concentrated in the seeds. The ASPCA lists Lathyrus (sweet pea) as toxic to horses (aminoproprionitrite causing weakness, lethargy, tremors, seizures, and possible death); effects in dogs and cats are generally gastrointestinal at low doses but neurological damage (lathyrism) is possible with repeated or large-dose ingestion. Treat all Lathyrus as toxic to pets and contact a vet or the ASPCA Animal Poison Control Center (888-426-4435) if ingestion occurs. Any worsening or persistent symptoms warrant an immediate vet visit.

Should I make my cat vomit?

No — do not induce vomiting unless a vet or the ASPCA Animal Poison Control Center specifically tells you to. The wrong action can make things worse. Call (888) 426-4435 and follow professional advice.

How do I stop this happening again?

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

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