Carvedilol to Propranolol Conversion Guidelines

Introduction to Conversion

When converting from carvedilol to propranolol, use a ratio of approximately 1:4, with 25 mg of carvedilol equivalent to approximately 80-100 mg of propranolol, as recommended by the American College of Cardiology 1, 2

Carvedilol 3.125 mg twice daily is approximately equivalent to propranolol 20-30 mg twice daily, according to the European Society of Cardiology 3
Carvedilol 12.5 mg twice daily is approximately equivalent to propranolol 60-80 mg twice daily, as stated by the American College of Cardiology 2
Carvedilol 25 mg twice daily is approximately equivalent to propranolol 80-100 mg twice daily, as recommended by the American College of Cardiology 1, 2

Heart failure patients should be converted with caution, considering a more gradual transition with closer monitoring, as advised by the European Society of Cardiology 3, 4
Elderly patients should start at the lower end of the dosing range and titrate more slowly, according to the American College of Cardiology 5, 2
Patients with reactive airway disease should use both medications with caution, as stated by the American College of Cardiology 5, 6

Divide total daily propranolol dose into twice-daily administration, as recommended by the American College of Cardiology 2
Monitor for 24-48 hours after conversion for signs of inadequate beta-blockade or excessive effects, according to the European Society of Cardiology 3

Excessive beta-blockade can be managed by reducing propranolol dose by 25-50%, as advised by the European Society of Cardiology 3

Abrupt discontinuation of beta-blockers should be avoided to prevent rebound hypertension or tachycardia, as warned by the European Society of Cardiology and the American College of Cardiology 3, 2
Overlooking formulation differences can lead to incorrect dosing, so ensure immediate-release propranolol is used when converting from standard carvedilol, as recommended by the American College of Cardiology 5, 2
Ignoring comorbidities, such as heart failure, can lead to inadequate management, as stated by the European Society of Cardiology and the European Heart Journal 3, 4