A question here for anyone who has reduced or withdrawn bisoprolol use. I've had AF since 2009 and, in 5 years, the AF episodes increased in frequency from quarterly to weekly and, in the latter stages, sometimes daily. However for over 6 months now, since starting on high concentration probiotics, I have had no episodes of AF at all. When first diagnosed back in 2009 I was put on bisoprolol - 5 mg per day. I'm not convinced it was particularly effective in reducing AF episodes - because it didn't - but I confess, I have become rather attached to the 60 beats a minute heart rate! Nevertheless, in consultation with my GP at the end of last week, it was agreed that I would reduce the bisoprolol to 2.5mg per day.
Well. Last night, my second night following the reduction, I was awakened by strong palpitations and a heart rate up around 100, much higher than my resting rate even before AF came into my life. The beats are all perfectly regular so I'm not back in AF but this is obviously connected to the change in dosage. Palpitations continued through most of the night making it difficult to sleep though it is a little better this morning. What I would like to know is whether this much higher rate is likely to continue - in which case I will probably revert to the higher bisoprolol dosage or whether this is just a 'withdrawal symptom' that will disappear in a few days - in which case I will go 'cold turkey' and stick with it. Obviously I expect there to be an increase in my heart rate with the reduced dosage but not such a significant one.
I know it's a powerful drug and I will see my GP again if it continues but I would appreciate any thoughts from those of you who have been through this.....? Thanks.