What is the minimum heart rate considered too low for patients taking beta blockers?

My doctor prescribed 10mg of Propranolol twice a day. My heart rate went down to 48. My resting heart rate is between 58 and 65 without propranolol. Has anyone else experienced this?

Any changes in your heart rate should be discussed with your doctor, particularly if you’re taking medication. They can examine your particular circumstances and change your medicine or dosage as necessary. Do not hesitate to contact them if you would like individualized advice.