Birth weight of infants after maternal exposure to typical and atypical antipsychotics: prospective comparison study. BJP, 192, . The number of mothers using trifluoperazine, including polytherapy, is 3; the total number using atypical antipsychotics, excluding polytherapy, is 15; the number using amisulpiride, excluding polytherapy, is 0: these data were reported incorrectly in Table 1 (p. ). The mean birth weight of infants exposed to atypical antipsychotics, including cases with weight-altering concomitants (p. , Table 2, col. 3, row 1) was 3391 g (s.d.=446), not 3291 g (s.d.=446) as reported.