Toxic plants directory
Is Oleander toxic to dogs or cats?
Nerium oleander
Dogs
Severe toxicity
Cats
Severe toxicity
High-risk plant
Oleander can cause severe poisoning. If your pet ingested any part of this plant, seek emergency veterinary care immediately, even without visible symptoms.About Oleander
Widely used in hedges, street planters, and gardens for its hardiness and showy blooms, oleander is one of the most dangerous ornamental plants out there: the entire plant contains cardiac glycosides (oleandrin) capable of causing severe arrhythmias and death in dogs, cats, and other animals, even in small amounts.
Symptoms of poisoning
- Vomiting and abdominal pain
- Diarrhea (sometimes bloody)
- Excessive drooling
- Severe cardiac arrhythmias
- Drop in blood pressure
- Tremors, collapse, and death in untreated cases
Toxic part of the plant
The entire plant is extremely toxic, including dried leaves and the smoke from burning it
What to do if your pet ate this plant
Seek emergency veterinary care immediately, even with a small amount ingested — oleander contains potent cardiac glycosides and the risk of death is real. Do not wait for symptoms to appear.
Frequently asked questions
Is Oleander toxic to dogs?
Yes. Oleander is toxic to dogs (level: severe toxicity). Possible symptoms: Vomiting and abdominal pain; Diarrhea (sometimes bloody); Excessive drooling; Severe cardiac arrhythmias; Drop in blood pressure; Tremors, collapse, and death in untreated cases.
Is Oleander toxic to cats?
Yes. Oleander is toxic to cats (level: severe toxicity). Possible symptoms: Vomiting and abdominal pain; Diarrhea (sometimes bloody); Excessive drooling; Severe cardiac arrhythmias; Drop in blood pressure; Tremors, collapse, and death in untreated cases.
Which part of Oleander is toxic?
The entire plant is extremely toxic, including dried leaves and the smoke from burning it.
What should I do if my pet ate Oleander?
Seek emergency veterinary care immediately, even with a small amount ingested — oleander contains potent cardiac glycosides and the risk of death is real. Do not wait for symptoms to appear.
Important notice
This content is educational and does not replace a veterinary evaluation. If in doubt, or in the presence of any symptoms, contact a veterinarian or an animal poison control center immediately.