摘要
概述:在中国和其它亚洲国家中用抗精神病药联合治疗精神分裂症要比在西方国家更为常见,其原因尚不清楚,可能与临床医生的盲目信念有关,即认为用多种药物治疗更可能获得满意的临床疗效。抗精神病药物是治疗精神分裂症患者的主要方法,但抗精神病药物的联用及大剂量使用只会大幅增加风险而不会提高临床疗效。人们普遍认为大剂量使用抗精神病药以及多药联用与药物不良反应的发生率增加、持续时间延长、程度更严重等相关。新近的研究证据还表明,抗精神病药联用及抗精神病药物总剂量相应增高会导致较高的纹状体D2受体占有率(致使药物耐受及停药困难),并使精神分裂症中已受损的突触可塑性恶化(使与此状态相关的认知功能损害"雪上加霜")。临床医生需要在精神分裂症的精神药物治疗中遵循"物稀为贵"的原则。
Antipsychotic polypharmacy in the treatment of schizophrenia is more common in China and other Asian countries than in Western countries. The reasons for this are unclear, but it may be related to an unsubstantiated belief among clinicians that multiple medications are more likely to achieve the desired clinical outcome. Antipsychotic medications are the mainstay of treatment for individuals with schizophrenia, but the use of antipsychotic polypharmacy and of high dosages of antipsychotic medication are associated with substantially increased risks without conferring improved clinical outcomes. It is generally accepted that high dosages of antipsychotic medications and the simultaneous use of multiple antipsychotics are associated with an increased prevalence, duration, and severity of adverse drug effects. More recent evidence also suggests that antipsychotic polypharmacy and the associated high overall dosage of antipsychotic medication lead to excessive striatal D2 receptor occupation（resulting in tolerance and drug withdrawal problems） and exacerbation of the impaired synaptic plasticity seen in schizophrenia（magnifying the cognitive impairment associated with the condition）. Clinicians need to apply the ‘less is more＇ principle in the psychopharmacological treatment of schizophrenia.
出处
《上海精神医学》
CSCD
2015年第6期368-370,共3页
Shanghai Archives of Psychiatry
关键词
抗精神病药联用
认知功能障碍
低剂量抗精神病药物
突触可塑性
antipsychotic polypharmacy
cognitive impairment
low-dose antipsychotic medication
synaptic plasticity
