Newborn:
Initial: 2 mg/kg/day in 2 divided doses.
Usual effective dose: 3.35 ± 1.3 mg/kg/day.
Children:
Initial: 1-3 mg/kg/day (or) 50 – 100 mg/m2/day in 3 divided
doses.
Max: 8 mg/kg/day (or) 200 mg/m2/day.
Usual effective dose: 4 mg/kg/day (or) 140 mg/m2/day.
Adults:
Initial: 50 mg q12 or 100 mg qd.
Increase dose Q4 days, Max. 300 mg/day for SVT & 400
mg/day for VT.
Pill-in-pocket for A fib: 200 mg (< 70 kg) & 300 mg
(> 70 kg). Patient should be on AV nodal blocking agent (Beta-blocker or
Calcium-channel blocker) while on this plan. Inpatient trial should be done
prior to discharge to check its efficacy.
Monitor:
EKG, Serum trough level. LFT, CBC/diff.
Serum trough level – Check 3 days after of starting or
changing medication.
Therapeutic level: 0.2 – 1.0 mcg/ml.
In children, response is noted at 0.2 – 0.5 mcg/ml range.
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