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Risperidone in the treatment of delusions of infestation
O A De León1, K M Furmaga, A L Canterbury
1Department of Psychiatry, University of Illinois at Chicago 60612, USA.
Objective:
The aim of this study is to describe the efficacy and safety of risperidone, in the treatment of delusions of infestation.
Method:
The authors present a three-case series in which risperidone was used to treat delusions of infestation.
Results:
All three patients responded to risperidone and experienced no extrapyramidal side effects. Two of our patients had failed treatment with haloperidol and another had failed treatment with pimozide.
Conclusion:
Risperidone was an effective and safe treatment in three cases of delusions of infestation. It is possible that 5-HT2 antagonism is essential for therapeutic benefit in this condition.