I have been taking Beto 50 ZK for 5 days. Two years ago, I developed arrhythmias, mainly supraventricular cutaneous. Previously, I took Bisocard 2.5mg but it very much beat tetno sometimes to 45. When taking Beto pulse around 60 but here there is a large weakness and low pressure 100/60 - 110/65 and chest pressure. In addition, I take magnesium and potassium Kalipoz - previous arrhythmias were caused by low values and after filling everything returned to normal. Currently, I have been struggling with arrhythmia for a month - first 2 weeks Bisocard visit to the doctor withdrawal and change to Beto 50 ZK here the treatment is also to last 2 weeks. Sometimes I feel very bad - probably because of the low pressure and therefore I have a question how to raise them with this drug with my ailments? Physical activity is currently falling away due to the 35th heat that has been going on for a week and does not promise to improve.