PVCs (unifocal, multifocal or coupled); VT; conversion of atrial fibrillation, atrial flutter, and PAT to normal sinus rhythm
Infant: 10-30 mg/kg PO qd in 4 divided doses q 6 h.
Child 1-4 yr: 10-20 mg/kg PO qd in 4 divided doses q 6 h.
Child 4-12 yr: 10-15 mg/kg PO qd in 4 divided doses q 6 h.
Child, adolescent 12-18 yr: 6-15 mg/kg PO qd in 4 divided doses q 6 h.
Adult: For adult> 50 kg, 150 mg PO q 6 h or 300 mg (extended-release) PO q 12 h; for adult < 50 kg, 100 mg PO q 6 h or 200 mg (extended-release) PO q 12 h; for cardiomyopathy or possible cardiac decompensation, 100 mg PO q 6-8 h initially, then adjust prn. |