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Is Yellow Oleander toxic to dogs and cats?

DogsTOXIC
CatsTOXIC

How serious is Yellow Oleander for pets?

SEVERE Plant Doctor's data flags Yellow Oleander as one of its most serious plants for pets. Treat any suspected ingestion as an emergency and call your vet or ASPCA Animal Poison Control at 888-426-4435.

SEVERE: cardenolides (cardiac glycosides) throughout the plant, including the sap, cause vomiting, diarrhea, a slow or irregular heartbeat and dangerous heart-rhythm disturbances. Oleanders are considered potentially lethal after ingestion, so treat any ingestion as an emergency. Not the same plant as common oleander (Nerium oleander), which has the same toxic mechanism.

Thevetia peruviana
Also called: Lucky Nut and Be-Still Tree.

What makes it toxic

Cardenolides.

Source: ASPCA Animal Poison Control

Symptoms to watch for

Source: ASPCA Animal Poison Control

What to do if your pet chewed it

  1. Move the plant out of reach so they cannot take another bite.
  2. If your pet is alert, gently rinse their mouth and offer a little water.
  3. Call your vet or ASPCA Animal Poison Control at 888-426-4435, especially if you see drooling, vomiting, swelling, or lethargy.

Pet-safe swaps

The same green look without the toxicity worry. Each of these is non-toxic to both dogs and cats in our data.

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Quick answers about Yellow Oleander

Is Yellow Oleander toxic to cats?

Yes, Yellow Oleander is toxic to cats. See all 127 plants toxic to cats.

Is Yellow Oleander toxic to dogs?

Yes, Yellow Oleander is toxic to dogs. See all 124 plants toxic to dogs.

What is Yellow Oleander also called?

Yellow Oleander (Thevetia peruviana) is also called Lucky Nut and Be-Still Tree.

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Always confirm with a veterinarian or ASPCA Animal Poison Control (888-426-4435) before assuming safety. This is a household reference, not a substitute for professional guidance in a suspected poisoning.

· Sources: ASPCA Animal Poison Control (lists it as toxic); Pet Poison Helpline: Cardiac Glycosides; NC State Extension Plant Toolbox: Cascabela thevetia (Thevetia peruviana); Bandara et al., Toxicon 2010 (peer-reviewed review) (mainly human data); WHO/IPCS INCHEM: Thevetia peruviana (mainly human data)

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