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Olanzapine-induced diabetic ketoacidosis.
To report the case of a patient taking olanzapine who developed diabetic ketoacidosis (DKA).
A 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.
Atypical 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.
Clinicians should monitor blood glucose concentrations periodically in patients taking olanzapine, especially in those patients with risk factors for diabetes mellitus.
Pub Type(s)Case Reports