Table 4.

Common First-Line Medications in the Treatment of SVT in Neonates (Oral therapy).

Medication	Class	Dosing	Comments
Propranolol	β-blocker	2–5 mg/kg/day in divided doses every 6–8 h	Bronchoconstriction may occur in patients with chronic lung disease; risk of hypoglycemia
Digoxin	Cardiac glycoside	8–10 μg/kg/d given in divided doses every 12 h	Arrhythmia with toxic effects; avoided in WPW syndrome, as it may enhance antegrade conduction via accessory pathway by slowing AV nodal conduction