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If your cat ate amphibious bistort — 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.

Amphibious Bistort is mildly toxic to cats (ASPCA).

Pet emergency

My cat ate Amphibious Bistort — what to do

Step by step

  1. Take amphibious bistort 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 amphibious bistort — FAQ

Is amphibious bistort poisonous to cats?

Yes — the ASPCA lists Amphibious Bistort (Persicaria amphibia) as mildly toxic to cats. Persicaria amphibia is not listed on the ASPCA Toxic and Non-Toxic Plant database. The Polygonaceae family contains tannins and low levels of oxalates in some genera, but significant toxicity from Persicaria amphibia to cats and dogs has not been confirmed. As ASPCA non-toxic status cannot be verified, it is classified as mildly toxic as a precaution; consult a vet if a pet ingests plant material.

How serious is it if my cat ate amphibious bistort?

Amphibious Bistort is mildly toxic, so most cats get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your cat ate a lot or symptoms persist.

What symptoms should I watch for?

Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. Persicaria amphibia is not listed on the ASPCA Toxic and Non-Toxic Plant database. The Polygonaceae family contains tannins and low levels of oxalates in some genera, but significant toxicity from Persicaria amphibia to cats and dogs has not been confirmed. As ASPCA non-toxic status cannot be verified, it is classified as mildly toxic as a precaution; consult a vet if a pet ingests plant material. 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 amphibious bistort well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.

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