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Cochrane Database of Systematic Reviews: Plain Language Summaries [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2003-. doi: 10.1002/14651858.CD007011.pub2

Cochrane Database of Systematic Reviews: Plain Language Summaries [Internet].

Risperidone for ADHD in people with intellectual disabilities

This version published: 2010; Review content assessed as up-to-date: February 16, 2009.

Link to full article: [Cochrane Library]

Plain language summary

Attention deficit hyperactivity disorder (ADHD) is more common in people with intellectual disability than in the general population.  As in the general population, ADHD adversely affects the ability to learn and is associated with behavioural disturbance, and therefore any intervention to reduce these symptoms is important.

Risperidone is a 'newer' atypical antipsychotic medication, prescribed to people with ID for many reasons, including disruptive behaviour, ADHD and psychosis. Most of the research into using risperidone for hyperactivity or disruptive behaviour has been performed in people with autism who do not have a clear diagnosis of ADHD. The aim of this review was to examine the effectiveness of risperidone in people (children and adults) with intellectual disability and ADHD.

No trials were found, and therefore there is no randomised controlled trial evidence to support or warn against the use of risperidone in this group of people.  It is important that this reseearch question is answered as many people with intellectual disability and ADHD are prescribed this medication. 


Background: Attention deficit hyperactivity disorder (ADHD) is increasingly recognised as occurring in people with intellectual disability (ID), although treatment of ADHD in this population has not ben tested widely. Risperidone has been used to treat ADHD in people with ID, although the evidence for its effectiveness is unclear.

Objectives: To examine the effectiveness of risperidone for the treatment of attention deficit hyperactivity disorder in people with intellectual disabilities.

Search methods: In February 2009, MEDLINE, PsycINFO, EMBASE, AMED, ISI Web of Science and WorldCat Dissertations were searched using an extensive list of synonyms for ADHD and ID. CENTRAL, CCDPLP, Current Controlled Trials meta‐register (mRCT), CenterWatch, NHS National Research Register, clinicaltrials.gov were searched, pharmaceutical companies and experts in the field were contacted. Reference lists of review articles were examined and citation searches were performed in ISI Web of Knowledge.

Selection criteria: All randomised controlled trials (RCTs), both published and unpublished, in any language, in which children or adults with ADHD and ID were treated with risperidone.

Data collection and analysis: Data collection and analyses were planned but not performed due to a lack of suitable studies.

Main results: Eleven studies were considered but none were suitable for inclusion.

Authors' conclusions: There is no evidence from RCTs that risperidone is effective for the treatment of ADHD in people with ID. Prescribing in this population can only be based on open‐label studies or extrapolation from research in people with autism and disruptive behaviour disorders; however these studies have not investigated people with ID separately so there are reservations regarding the applicability of these findings. Research into effectiveness and tolerability is urgently needed.

Editorial Group: Cochrane Developmental, Psychosocial and Learning Problems Group.

Publication status: Edited (no change to conclusions).

Citation: Thomson A, Maltezos S, Paliokosta E, Xenitidis K. Risperidone for attention‐deficit hyperactivity disorder in people with intellectual disabilities. Cochrane Database of Systematic Reviews 2009, Issue 2. Art. No.: CD007011. DOI: 10.1002/14651858.CD007011.pub2. Link to Cochrane Library. [PubMed: 19370667]

Copyright © 2010 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

PMID: 19370667


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