Hello,
I am Dr. Romain Rajan, General Physician, and your case has been allotted to me.
Short, clear answer:
Between Propranolol 20 mg and Concor (Bisoprolol) 1.25 mg, Concor 1.25 mg is safer for long-term use and has a lower risk of causing first- or second-degree heart block, when used at low dose and with monitoring.
Why Concor is safer
⢠Bisoprolol (Concor) is β1-selective â acts mainly on the heart
⢠Less effect on AV node conduction at low doses (1.25 mg)
⢠Preferred for chronic use in BP, palpitations, anxiety-related tachycardia, and heart protection
Why Propranolol is less preferred long term
⢠Non-selective beta-blocker (β1 + β2)
⢠More effect on heart rate and AV node
⢠Higher chance of bradycardia and conduction slowing with prolonged use
Important clarification
⢠Any beta-blocker, if overdosed or used in predisposed patients, can cause heart block
⢠Risk is higher with:
⢠Existing conduction defects
⢠Very low resting heart rate
⢠Electrolyte imbalance
⢠Combination with other rate-slowing drugs
Practical advice
⢠For use >6 months, Concor 1.25 mg is generally safer
⢠Get a baseline ECG and periodic monitoring
⢠Do not stop beta-blockers suddenly
Consult immediately if dizziness, fainting, extreme fatigue, or pulse
Answered2025-12-16 18:44:11
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