Haloperidol
- PO (Adults): 0.5–5 mg 2–3 times daily. Patients with severe symptoms may require up to 100 mg/day.
- PO (Geriatric Patients): 0.5–2 mg twice daily initially; may be gradually ↑ as needed.
- PO (Children 3–12 yr or 15–40 kg): 0.25–0.5 mg/day given in 2–3 divided doses; increase by 0.25–0.5 mg every 5–7 days; maximum dose: 0.15 mg/kg/day (up to 0.75 mg/kg/day for Tourette’s syndrome or 0.15 mg/kg/day for psychoses).
- IM (Adults): Haloperidol lactate: 2–5 mg every 1–8 hr (not to exceed 100 mg/day).
- IM (Children 6–12 yr): Haloperidol lactate: 1–3 mg/dose every 4–8 hrs to a maximum of 0.15 mg/kg/day.
- IV (Adults): Haloperidol lactate: 0.5–5 mg, may be repeated every 30 min (unlabeled).
Haloperidol Decanoate
- IM (Adults): 10–15 times the previous daily PO dose but not to exceed 100 mg initially, given monthly (not to exceed 300 mg/mo).