Extrapyramidal side effects which have the potential to limit antipsychotic
effectiveness are common in subjects receiving typical rather
than atypical antipsychotics. In our study, the incidence of EPS-related
AEs was similar for the two groups, and akathisia did not occur more
frequently in the aripiprazole group. The EPS rate in this study was
close to that reported by Findling et al. (2008), and the incidence of
akathisia was consistent with the data reported by Potkin et al.
(2003). However, when compared with Chan's study, the percentage
in the aripiprazole group was somewhat higher (Chan et al., 2007).
This difference might not be clinically meaningful because both the
aripiprazole dose and the sample size were different in the trials.