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Acute onset clozapine-induced hyperglycaemia: A case report
Pradeep Kumar1, Dheerendra Kumar Mishra1, Nimisha Mishra1
1Department of Psychiatry, Shyam Shah Medical College Rewa, Rewa, India.
Clozapine, an effective antipsychotic for resistant schizophrenia, can rapidly induce hyperglycemia and delirium. Stopping clozapine improved these symptoms, suggesting a direct link and potential for faster patient recovery.
Area of Science:
- Psychiatry
- Pharmacology
- Endocrinology
Background:
- Clozapine is a highly effective atypical antipsychotic for treatment-resistant schizophrenia.
- Metabolic syndrome and hyperglycemia are known, but typically long-term, side effects of clozapine.
- These side effects contribute to increased mortality in schizophrenia patients.
Observation:
- A patient with treatment-resistant schizophrenia developed acute hyperglycemia and delirium within a week of starting clozapine.
- The patient's symptoms resolved rapidly after clozapine withdrawal.
- No hypoglycemic agents were required for symptom resolution.
Findings:
- This case demonstrates that clozapine can induce acute hyperglycemia and delirium in a short timeframe.
- The rapid improvement upon clozapine cessation suggests a direct pathophysiological mechanism.
- This highlights the importance of vigilant monitoring for metabolic disturbances during clozapine initiation.
Implications:
- Clinicians should consider the potential for rapid-onset hyperglycemia with clozapine, even in the short term.
- Early recognition and drug withdrawal may prevent severe metabolic complications.
- Further research into the acute mechanisms of clozapine-induced hyperglycemia is warranted.
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