I have been taking 2.5mg of Bisoprolol as prescribed by hospital cardio. for 2 years. No problems until a couple of weeks ago when i noticed the morning dose of 2.5mg seemed to bring on mild but disturbing aFib about an hour after taking it and lasting for a few hours...always the same pattern. Second dose is 9-10 pm so no problems as it just before bed. I am loathe to mess with dosage but this morning took 1.25mg to see if there any difference . i am a bit concerned re. reducing the dose as I probably need the dose I take.I take it to better control the Afib which was becoming a bit wild on Verapamil after some years on that drug so I felt my decision could be the right one? Any thoughts on this much appreciated. I do have a cardiac nurse I can call but they take a few days to get back to you hence a little experimentation on my part.
Bisoprolol and dose: I have been taking... - British Heart Fou...
Bisoprolol and dose
My thoughts are that you should contact your cardiac nurse with your queries and in the meantime continue with your prescribed dose until the nurse gets back to you. Or contact your GP or take a chance with 111 (best of luck with that!). We are all different in terms of age, health conditions and general well being and what might be an appropriate medication dose for one person may not necessarily be the same for someone else.
Hello 
I would not change the dose till I had spoken with my Doctor or Nurse even if it takes a couple of days
Give them a ring and let us know how you get on x
waiting for nurse to ring. Dropped the a m.dose and feel better but i still need advice,me thiunks.
Hello
Hope the call goes well and they agree it is fine to take the smaller dose especially as you are already feeling a lot better x
Nurse rang back 7pm last night. Said taking smaller dose of Bisoprolol is ok for the moment, and esp. if i feel better with that. She is also going to speak to my cardio.Nurse thinks it could be too high Potassium...... due to weird feeling in the morning after taking the higher dose am . It is to do with the accumulation of water in the body after night time and kidneys not processing the pot. well .I also had high potassium at a routine blood test at my practice last Sept. but GP rather dismissed it.So nurse has e mailed the practice for another blood test next week.Husband and myself have both been thinking Gp getting a bit lax recently.This is a good example.I hope the GP gets a slap. On his own admission he has too many patients now.
Hello
I am glad the Nurse got back to you she sounds better than the Doctor you have been dealing with
Those blood tests do need doing and they will be able to see what is happening once they get the results back
Meanwhile it is good news it is ok to take the smaller dose and I hope you feel better on it
Let us know how you get on and hope this gets sorted for you x
Just a thought... has something changed in respect of your condition to make your morning 2.5mg dose less effective, so rather than a reduction in the dose, you might actually need more? I wonder what the result was of you reducing to 1.25mg. I woukd certainly get this checked out and your medication reviewed.
I cannot think of anything that would have caused this change .I am 84 but busy both in and out with a prog. of activities...no two days the same and otherwise feel pretty ok.Called cardiac nurse and waiting, as it were, for a callback.
Thanks for your reply. See post to Bekind.
Hope the blood test reveals the cause of your problem... that is if the GP practice responds to the request. I usually have to remind my GP practice that I need an annual blood test. They claim to be super busy, but they are looking for more patients. Maybe if they were paid by consultation and not by the number of patients they have, it might be a different situation.
Well, I think they may well respond to the hospital nurse request to do the blood test....and the cardio. is likely to be involved so I will not let it go unnoticed.
No, we need to be proactive with regards to our health.
Proactive is my second name!I am always preacging about it here.Thanks for your concern.
Advice for coming off Bisoprolol please
Bisoprolol
Bisoprolol withdrawal vent!
Bisoprolol And Asthma
Ectopics and bisoprolol 
