Atypical antipsychotic medication improves aggression, but not self-injurious behaviour, in adults with intellectual disabilities

Journal of Intellectual Disability Research : JIDR
S L RuedrichK Lim

Abstract

Atypical antipsychotic medications have largely supplanted their typical counterparts, both for psychosis and for the treatment of aggression and/or self-injurious behaviour (SIB), in persons with intellectual disabilities (ID). However, with the exception of risperidone, little systematic research supports their use in such persons. A retrospective review of 31 adult residents of a state developmental centre, who were treated for aggression and/or SIB with atypical antipsychotics. Average monthly counts of aggression and SIB for 1 year of treatment with typical antipsychotics, were compared with monthly averages for the next 12 months of treatment with atypical antipsychotics. Twenty-seven of 31 subjects (87%) completed a full year of atypical antipsychotic treatment. Subjects ranged in age from 24 to 54 years (mean = 39); 18/31 (58%) had profound ID. Twelve of 26 (46%) had typical antipsychotics discontinued within the year of atypical treatment; another 7/26 (27%) had their typical antipsychotic dose decreased. Twenty-three of 31 trials involved risperidone; 7/31 olanzapine; 1/31 quetiapine. Subjects gained an average of 6.6 pounds during the year of atypical treatment, but no significant changes in glucose or cholesterol we...Continue Reading

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