Ginkgo nut intoxication in a 2-year-old male.

This report describes a case of ginkgo nut intoxication in a 2-year-old male. The patient presented with vomiting and afebrile convulsion 4 hours after eating a large number of roasted gingko nuts. There was a large volume of ginkgo nuts in his vomited matter, and on admission the concentrations of 4-O-methoxypyridoxine in his serum and urine were elevated. The patient was diagnosed as having ginkgo nut intoxication, and diazepam and pyridoxal phosphate were administered intravenously. After the treatment, his symptoms were resolved. The neurotoxicity of ginkgo nuts should be recognized by pediatricians and parents who have infants.