Propranolol Dosing for Palpitations

Standard Dosing Approach

The American College of Cardiology recommends starting propranolol immediate-release at 10-40 mg three to four times daily (30-160 mg total daily dose), titrating based on symptom control and heart rate response, not weight-based dosing in adults 1, 2
Initial dose: 10-40 mg three to four times daily of immediate-release formulation 1
Alternative: Long-acting formulation 80 mg once daily, titrating to 120-160 mg daily for maintenance 2
The American College of Cardiology guidelines specify these fixed-dose ranges rather than mg/kg calculations for symptomatic tachyarrhythmias 1

Before initiating propranolol, screen for absolute contraindications, including cardiogenic shock or hypotension 1
Screen for asthma or obstructive airway disease 2
Baseline evaluation must include cardiovascular examination with auscultation 3

During titration: Monitor for hypotension and bradycardia, especially with dose escalation 2, 3
Diabetic patients: Counsel that propranolol may mask hypoglycemia symptoms 1, 3

Never abruptly discontinue propranolol after chronic use—taper gradually over several weeks to prevent rebound hypertension, tachycardia, or angina 2, 3
Avoid combining with non-dihydropyridine calcium channel blockers (diltiazem, verapamil) due to increased risk of severe bradycardia and heart block 1, 2

IV formulation: For acute settings, 1 mg over 1 minute, repeat as needed every 2 minutes up to 3 doses 1
Elderly patients: May require lower doses due to altered pharmacokinetics 2