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Curr Drug Saf. 2012 Jul;7(3):250-3.

Quetiapine induced hypomania: a case report and a review of the literature.

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1
Psychiatric Hospital of the Cross, Jalledib, Lebanon. ramiboukhalil@hotmail.com

Abstract

OBJECTIVES:

The 5-HT2 antagonistic action of quetiapine may disinhibit the dopaminergic system enhancing dopaminergic activity in the forebrain and influencing the mood state. Our objective is to investigate the possible induction of manic symptoms by quetiapine through a case report and a review of the literature.

METHOD:

We report the case of a 54 year old woman suffering from bipolar depression who developed hypomania seven weeks after the initiation of 300 mg/d of quetiapine. A literature review concerning the induction of hypomania or mania by quetiapine have retrieved the presence of seven similar case reports or series.

RESULTS:

Available literature points toward an early induction of hypomania or mania with low dosage of quetiapine treatment (between 100 and 400 mg/day never exceeding 600 mg/day). Hypomania or mania are possible short term complications that can be present few days to few weeks of treatment initiation. The discontinuation of the drug or the increase of its dose seems to reverse the hypomanic or manic symptoms. Patients described in the literature suffer mostly from schizophrenia.

CONCLUSION:

The atypical antipsychotic drug quetiapine, which have antidepressant properties at low doses via its indirect dopamine enhancing activity due its serotoninergic antagonism, appears to be involved in the induction of rare hypomanic or manic state in patients suffering from bipolar disorders and to have mood stabilizing properties at higher doses when its dopamine antagonist activity becomes more prominent. Its manic/hypomanic induction properties should not prevent its administration to patients suffering from bipolar disorder.

PMID:
22950378
[Indexed for MEDLINE]
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