Oral antipsychotics may be required for symptoms that are more difficult to control—for example: Risperidone 0.25 to 1.5 mg 2 times a day Haloperidol 0.5 to 2 mg 2 or 3 times a day Pimozide 1 to 2 mg 2 times a day Olanzapine 2.5 to 5 mg once a day Fluphenazine is also effective in suppressing tics.