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If your dog ate longan — 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.

Longan is mildly toxic to dogs (ASPCA).

Pet emergency

My dog ate Longan — what to do

Step by step

  1. Take longan 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 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 dog ate longan — FAQ

Is longan poisonous to dogs?

Yes — the ASPCA lists Longan (Nephelium longana) as mildly toxic to dogs. Nephelium longana (longan) is not individually listed by ASPCA. The seeds of longan and close relatives in Sapindaceae contain cyanogenic compounds and present a choking and toxicity hazard to pets. The fleshy aril is not reported as toxic but the high sugar content can cause gastrointestinal upset in dogs and cats. Seeds should be kept away from pets. Consult a vet if a pet ingests the seed.

How serious is it if my dog ate longan?

Longan is mildly toxic, so most dogs 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 dog 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. Nephelium longana (longan) is not individually listed by ASPCA. The seeds of longan and close relatives in Sapindaceae contain cyanogenic compounds and present a choking and toxicity hazard to pets. The fleshy aril is not reported as toxic but the high sugar content can cause gastrointestinal upset in dogs and cats. Seeds should be kept away from pets. Consult a vet if a pet ingests the seed. 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 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 longan well out of reach, or swap it for an ASPCA non-toxic plant — see the best dogs-safe plants list.

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