This is from website for IV drugs http://www.globalrph.com/dilhi.htm
Drug Standard Dilution Infusion Rate Diluents*
HALOPERIDOL LACTATE (HALDOL) 0 to 50 mg/ 50 ml
51 to 100 mg/ 100 ml
200 mg/ 160 ml (1 mg/ml)
(may dilute all doses to 1 mg/ml) As directed D5W
EXP: 7 DAYS (RT) Label: Do not Refrigerate. Haldol may be given IV push. Max IV rate (usual): 5 mg/min. Oral to IV conversion (approximate): oral dose x 0.625 = daily IV dose. Continuous infusion: Doses of 3 to 25 mg/hr (72 to 600mg/day) have been studied in critically ill patients requiring mechanical ventilation. Continuous infusions have also been used to treat severely agitated critically ill patients: Start 10 mg/hr, adjust as necessary to provide relief from agitation in increments of 5 mg/hr.