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Olanzapine-induced diabetic ketoacidosis.
OBJECTIVETo report the case of a patient taking olanzapine who developed diabetic ketoacidosis (DKA).
CASE SUMMARYA 46-year-old African American woman with no previous history of diabetes mellitus was admitted to the hospital and subsequently diagnosed with DKA and acute pancreatitis. The patient had been taking olanzapine, valproic acid, carbamazepine, hydrochlorothiazide/triamterene, and conjugated estrogens prior to admission. Olanzapine was the last medication added to the regimen. In addition to clinicians treating the DKA with appropriate interventions, olanzapine (due to possible association with hyperglycemia and DKA) as well as valproic acid (due to possible association with pancreatitis) were discontinued from the medication regimen. The patient was discharged home and her most recent glycosylated hemoglobin and fasting glucose concentrations have been within the normal range.
DISCUSSIONAtypical antipsychotics, such as olanzapine, have been associated with hyperglycemia and possibly DKA. We believe that this occurred in our patient who had no previous history of diabetes mellitus. Possible mechanisms of action and potential confounding variables are discussed.
CONCLUSIONSClinicians should monitor blood glucose concentrations periodically in patients taking olanzapine, especially in those patients with risk factors for diabetes mellitus.
Departments of Pharmacy Practice and Family Medicine, Medical University of South Carolina, 295 Calhoun St., PO Box 250192, Charleston, SC 29425-0001, USA. email@example.com
The Annals of pharmacotherapy 35:12 2001 Dec pg 1556-8
Pub Type(s)Case Reports