If antipsychotics are used, they should be given in a low dose (eg, olanzapine 2.5 to 15 mg orally once a day; risperidone 0.5 to 3 mg orally every 12 hours; haloperidol 0.5 to 1.0 mg orally, IV, or IM twice a day or as needed) and for a short time.