Veterans Affairs

Patients taking quetiapine were less likely to use antiparkinson medications than those taking olanzapine, risperidone or ziprasidone with NNT ranging from 20 to 25. Olanzapine was associated with less antiparkinson medications than aripiprazole, risperidone and ziprasidone (NNT 14 – 20) and more likely than quetiapine, NNH=25. ................
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