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Clin Neuropharmacol. 2005 Mar-Apr;28(2):83-6.

Ziprasidone-associated mania: a review and report of 2 additional cases.

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  • 1University of Minnesota School of Medicine, Minneapolis, USA.


Although mania was not reported as an adverse event in the pivotal trials of ziprasidone, there have been 7 reports of ziprasidone-induced mania in 12 patients. We now report 2 additional cases wherein the introduction of ziprasidone resulted in new-onset manic episodes. In 1 case, the patient required hospitalization and lost his job. In the other, time to mania was 5 months, considerably longer than previously reported. Of the 14 cases, 9 were in a depressive episode when ziprasidone was prescribed, and 8 had a history of current or past exposure to antidepressants. Ziprasidone, like many antidepressants, can block reuptake of norepinephrine and serotonin, although mania has developed in patients treated with atypical antipsychotics that are less potent in this regard. However, ziprasidone and other atypical antipsychotics have in common a high ratio of 5-HT2a to D2 receptor blockade, which may also play a role in this phenomenon. Clinicians and patients need to be aware of the potential for the induction of mania with ziprasidone, even after lengthy exposure.

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