Grayanotoxin poisoning from Rhododendron simsii in an infant.

Hong Kong Med J

Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Laichikok, Hong Kong.

Published: October 2008

AI Article Synopsis

  • - A 57-day-old infant experienced severe poisoning after ingesting milk mixed with a toxic plant called Rhododendron simsii, leading to symptoms like vomiting, convulsions, and shock.
  • - The plant was gathered by the infant's grandmother who mistakenly believed it would help with respiratory issues; grayanotoxin, the toxin present in the plant, was found in both the infant's urine and the plant sample.
  • - The infant required 2 days of ventilatory support but ultimately recovered, highlighting the dangers of ingesting toxic plants and the importance for healthcare providers to be aware of local poisonous flora.

Article Abstract

We report a case of severe poisoning in a 57-day-old infant who presented with vomiting, convulsions, and shock after ingesting a bottle of milk containing a decoction of Rhododendron simsii. The grandmother collected this toxic plant from a cultivated area, believing it was good for the airways. Grayanotoxin was detected in both the urine and plant specimens. The infant made a good recovery after requiring ventilatory support for 2 days. Rhododendron is a common gardening shrub in Hong Kong. Some Rhododendron species are poisonous and contain grayanotoxin. Intentional or accidental ingestion of toxic plants can be severe or even life-threatening. It is therefore essential that clinicians be familiar with local toxic plant species.

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