After two days without beta blocker my HR was showing signs of too
high a heart rate. Nothing threatening, but 90s at rest and easy
to get the HR up
to 120 with light physical activity.
I took a 25 mg Atenolol yesterday at about noon, and the HR was back to the 60s at rest. Then I decided to try to get by with one 25 mg a day, not two (one every 12 hours). So, by bedtime, midnight, my HR was only a little high, 70s...