• Christine M Groth and Eleanor R Banzon.
• Department of Pharmacy, University of Rochester Medical Center, Rochester, New York 14642, USA.
• J Emerg Med. 2013 Aug 1;45(2):194-8.

BackgroundIntentional insulin glargine overdose is rarely reported in the literature, but usually results in prolonged hypoglycemia requiring intensive care unit admission.ObjectiveWe report a case of using octreotide to treat prolonged hypoglycemia after a large insulin glargine overdose.Case ReportA 56-year-old man with type 2 diabetes mellitus presented to the Emergency Department after a multidrug overdose including up to 3,300 units insulin glargine. He required admission to the intensive care unit for mechanical ventilation and blood-glucose monitoring every 30 to 60 min. He received a continuous dextrose infusion for >100 h for persistent hypoglycemia. Octreotide, a somatostatin analogue, was given on day 4 of admission in an attempt to inhibit any insulin secretion from the pancreas that might be occurring in response to the dextrose infusion and to minimize the amount of fluid being given. After three doses, improvements in the patient's blood glucoses were seen, however, this could have coincided with complete absorption of the insulin.ConclusionsProlonged hypoglycemia often occurs after large overdoses of insulin glargine due to a depot effect at the site of injection. Octreotide is a potential adjunctive treatment to dextrose in patients with a functioning pancreas.Copyright © 2013 Elsevier Inc. All rights reserved.

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