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Ann Pharmacother. 2000 Jun;34(6):740-2. doi: 10.1345/aph.18468.

Zuclopenthixol-associated neutropenia and thrombocytopenia.

The Annals of pharmacotherapy

B Hirshberg, A Gural, Y Caraco

Affiliations

  1. Division of Internal Medicine, Hadassah University Hospital, Jerusalem, Israel.

PMID: 10860136 DOI: 10.1345/aph.18468

Abstract

OBJECTIVE: To report a case of neutropenia and thrombocytopenia secondary to use of zuclopenthixol in a schizophrenic patient.

CASE SUMMARY: A 66-year-old white man with chronic schizophrenia was referred to the hospital due to neutropenia and thrombocytopenia that developed shortly after initiation of zuclopenthixol therapy. Prior to zuclopenthixol administration, his white blood cell and platelet counts were 8.5 x 10(9) cells/L3 and 305 cells x 10(9)/L, respectively. Progressive reduction in leukocyte and platelet counts occurred, reaching a nadir of 2.9 x 10(9) cells/L3 (granulocytes 18.9%) and 109 cells x 10(9)/L, respectively. Zuclopenthixol was discontinued on admission, resulting in complete recovery within the next five days.

DISCUSSION: Neutropenia and thrombocytopenia are well-known complications of antipsychotic drug therapy. Zuclopenthixol, a well-established antipsychotic agent, has relatively few adverse effects. The rapid decrease of white blood cell and platelet counts following the initiation of zuclopenthixol, as well as the rapid recovery, implicate zuclopenthixol as the predominant cause for neutropenia and thrombocytopenia in this patient.

CONCLUSIONS: Although neutropenia and thrombocytopenia are rare complications of zuclopenthixol therapy, monitoring blood counts in patients receiving this agent seems to be justified.

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