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


METHODS
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.


CONCLUSIONS
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.
Hirshberg
B
B
Division of Internal Medicine, Hadassah University Hospital, Jerusalem, Israel.
Gural
A
A
Caraco
Y
Y
D000368:Aged; D014150:Antipsychotic Agents / Q000009:adverse effects*; D003006:Clopenthixol / Q000009:adverse effects*; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D009503:Neutropenia / Q000139:chemically induced*; D010976:Platelet Count; D012559:Schizophrenia / Q000097:blood / Q000188:drug therapy; D013921:Thrombocytopenia / Q000139:chemically induced*
D014150:Antipsychotic Agents; D003006:Clopenthixol