Good morning. For several weeks I have been taking Bibloc 5 - 1/4 tablet in the morning to lower slightly increased pressure (135/80-150/103). Initially, I did not observe any side effects, but now I noticed that at times I feel a stronger heartbeat - not so much accelerated, but just strong and clearly felt. I also have the impression that at times the heartbeat is uneven, I feel weakened and sleepy, sometimes I have shortness of breath and stinging in the chest. As a result of the combination of all the listed, my general well-being is poor. These symptoms do not occur all the time, but they intensify and weaken alternately - for a few days they are not felt much, then they come back again - and I certainly did not experience them before the introduction of the drug. Could these be side effects of this remedy? Should I give it up? The doctor noted that in time I will be able to try to discontinue this drug, at the moment I am between visits and due to Christmas I have no opportunity to get advice, and I have doubts whether the use of this drug is beneficial for me. I would like to add that in addition to Bibloc I am currently taking Mag B6 Forte, Kalipoz and Euthyrox 100/125, I also have Captopril saved as an emergency drug in case the pressure rises. Thank you in advance for your reply.