title: Clozapine-induced agranulocytosis and thrombopenia in a patient with dopaminergic psychosis.
abstract: In patients with Parkinson' disease and dopaminergic psychosis, clozapine treatment is recommended as the drug is free from extrapyramidal side effects and does not worsen motor symptoms of the underlying disease. The use of clozapine, however, is limited due to its hematotoxic side effects. For treatment of clozapine-induced agranulocytosis, granulocyte colony-stimulating factors (G-CSF) are recommended. We report the case of a 72-years-old male patient with clozapine-induced agranulocytosis and thrombopenia. Neutropenia was successfully treated with G-CSF, but thrombopenia persisted and resolved spontaneously after 14 days. Bone marrow toxicity of clozapine is not restricted to white cell maturation, but may also impair thrombocytopoesis.
authors.affiliation: Neurological Clinic, University of Köln, Federal Republic of Germany.
authors.forename: J
authors.initials: J
authors.lastname: Rudolf
authors.forename: M
authors.initials: M
authors.lastname: Grond
authors.forename: M
authors.initials: M
authors.lastname: Neveling
authors.forename: W D
authors.initials: WD
authors.lastname: Heiss
mesh_terms: D000368:Aged; D000380:Agranulocytosis / Q000139:chemically induced* / Q000473:pathology; D000978:Antiparkinson Agents / Q000009:adverse effects* / Q000627:therapeutic use; D014150:Antipsychotic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D003024:Clozapine / Q000009:adverse effects* / Q000627:therapeutic use; D015259:Dopamine Agents / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D007958:Leukocyte Count / Q000187:drug effects; D008297:Male; D010300:Parkinson Disease / Q000150:complications / Q000188:drug therapy / Q000523:psychology; D010976:Platelet Count / Q000187:drug effects; D011605:Psychoses, Substance-Induced / Q000097:blood* / Q000188:drug therapy; D013921:Thrombocytopenia / Q000139:chemically induced* / Q000473:pathology
chemical_list: D000978:Antiparkinson Agents; D014150:Antipsychotic Agents; D015259:Dopamine Agents; D003024:Clozapine