Dosage Forms
Uses
Dose and Duration
Adult: by mouth, 1–4 mg daily in divided doses for 2–4 weeks
Elderly or debilitated: 0.5–2 mg as above
Adult: by mouth, 1–2 mg at bedtime for 2–4 weeks
Adult: by IM or slow IV injection (into a large vein), 0.025–0.03 mg/kg (usual range 1.5–2.5 mg), repeated every 6 hours if necessary
Adult and child over 12 years: by mouth, 2–3 mg the night before operation then 2–4 mg 1–2 hours before operation
By slow IV injection, 0.05 mg/kg 30–45 minutes before operation. Dilute with an equal volume of sodium chloride 0.9% or water for injection
By IM injection, diluted as above, 0.05 mg/kg 60–90 minutes before operation
Child 1 month–12 years: by mouth, 0.05–0.1 mg/kg (max 4 mg) as above. Same dose may be given the night before in addition to or as a replacement
By IV injection, 0.05–0.1 mg/kg (max 4 mg) 30–45 minutes before the procedure
Adult and child over 12 years: by IV injection, 4 mg as a single dose, repeated once after 10 minutes if necessary
Neonate and child up to 12 years: by IV injection, 0.1 mg/kg (max 4 mg) as a single dose, repeated once after 10 minutes if necessary
