TOXICOLOGY: AN AUSTRALIAN PERSPECTIVE
Toxicology case of the month: oral hypoglycaemic overdose
1 Sir Charles Gairdner Hospital, Perth, WA, Australia
2 University of Western Australia, Perth, WA, Australia
3 New South Wales Poison Information Centre, New Children’s Hospital, Westmead, NSW, Australia
4 Royal Perth Hospital, Perth, WA, Australia
Correspondence to:
Correspondence to:
Mark Little
Sir Charles Gairdner Hospital, Perth, WA, australia; Mark.Little{at}health.wa.gov.au
A teenager ingests 375 mg of glipizide and 14.5 g of melformin intentionally in a small country town. She presents to the local medical facility with symptoms and signs of hypoglycaemia. Using a risk assessment based approach, the management of suiphonylurea and metformin overdose is discussed. Sulphonylurea overdose invariably results in profound hypoglycaemia that requires resuscitation with IV dextrose and the use of octreotide as an antidote. Metfonnin overdose rarely causes problems.
Keywords: glipizide; hypoglycaemia; lactic acidosis; metformin; overdose
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