Abstract: The present invention provides methods, dosage forms and kits for treating with an effective amount of ziprasidone a CNS disorder in a human when the human is in a fasted state. In one embodiment, the invention relates to a method for treating a CNS disorder in a human, which method comprises administering to the human in a fasted state, a solid oral dosage form comprising an amount of ziprasidone effective to treat said CNS disorder, wherein the area under the serum concentration versus time curve (AUC0-inf) of the ziprasidone in the human subsequent to said administering is from 70% to 140% of the mean area under the ziprasidone serum concentration versus time curve (AUC0-inf) resulting from administration of a control ziprasidone immediate release oral capsule containing the same amount of ziprasidone to a cohort of humans in a fed state.