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Japanese

Effectiveness of Adjunctive Treatment with Low Dose Aripiprazole for Probable Blonanserin-induced Hyperprolactinemia and Amenorrhea in Two Cases of Chronic Schizophrenia with High Doses of Antipsychotic Drugs Masanori HONMA 1 , Hideaki KATOU 1 1Suda Hospital, Takayama, Japan Keyword: Aripiprazole , Blonanserin , Hyperprolactinemia , Amenorrhea , Schizophrenia pp.13-19
Published Date 2014/1/15
DOI https://doi.org/10.11477/mf.1405102631
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 In this report, we present that hyperprolactinemia and amenorrhea in two female cases of chronic schizophrenia, who were treated by high dose (converted into over a 1,000mg dose of chlorpromazine) of antipsychotic drugs including blonanserin and quetiapine or olanzapine, were improved by only addition of low dose aripiprazole. It is reported that treatment using blonanserin causes hyperprolactinemia at a rate from 20 to 30%. In the consideration of internal medicine, two cases of hyperprolactinemia were probably caused by blonanserin. This result was very interesting because a marked decrease of prolactin occurred in the early stage of switching to aripiprazole, for therapeutic purposes of decreasing their dose of antipsychotics, simplification of the antipsychotic regime, and improvement of hyperprolactinemia. It is suggested that hyperprolactinemia possesses adverse events including sexual dysfunction, a decrease of bone density, menstrual disorders, and an increased risk of breast cancer. Although both aripiprazole and blonanserin are non-sedative atypical antipsychotics with few side effects, this report suggests that using aripiprazole has useful advantages, especially in light of hyperprolactinemia.


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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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