All parts of the plant are poisonous, containing tropane alkaloids such as atropine, scopolamine and hyoscyamine. Ingestion of any part of the plant can cause a variety of symptoms, including:
- Nausea
- Vomiting
- Diarrhea
- Abdominal pain
- Drowsiness
- Confusion
- Hallucinations
- Seizures
- Coma
- Death
The severity of symptoms depends on the amount of plant material ingested. There is no antidote for cestrum poisoning, and treatment is supportive.
If you think your dog has eaten any part of a cestrum plant, contact your veterinarian immediately.