Maximum Dose of IV Haloperidol

Dosing by Clinical Context

The American Academy of Pediatrics recommends a standard initial dose of 5 mg IM/IV for acute psychosis with agitation in adults 1
The American Academy of Pediatrics suggests pediatric dosing of 0.05-0.15 mg/kg IM/IV, which may be repeated hourly as necessary, with a maximum single dose of 5 mg 1
Doses can be repeated hourly based on clinical response, as recommended by the American Academy of Pediatrics 1
Hypotension may occur, especially with rapid IV administration, according to the American Academy of Pediatrics 1
Dystonic reactions and extrapyramidal symptoms increase significantly with doses >7.5 mg/day, as noted by the American Academy of Pediatrics 1
Repeated doses can prolong QT interval and precipitate torsades de pointes, as warned by the American Academy of Pediatrics 1

The FDA highlights dysrhythmia risks in the butyrophenone drug class, though evidence for haloperidol-induced severe cardiac events is less conclusive, as reported in the Annals of Emergency Medicine 2

For undifferentiated acute agitation, the American Academy of Emergency Medicine recommends starting with 5 mg IV/IM in adults, with reassessment at 30-60 minutes 1, 2
The American Academy of Emergency Medicine suggests repeating 5 mg doses hourly as needed, and considering combination with benzodiazepine (lorazepam 2 mg) for enhanced effect 1, 2