Patients taking paliperidone palmitate had significantly higher maximum mean levels of serum prolactin ( men , 34.56 g/L [ 95 % CI , 29.75-39 .37 ] vs 15.41 g/L [ 95 % CI , 10.73-20 .08 ] ; P < .001 , and for women , 75.19 [ 95 % CI , 63.03-87 .36 ] vs 26.84 [ 95 % CI , 13.29-40 .40 ] ; P < .001 ) .