Taking Konstin with a heartbeat of 50 beats per minute may be an adverse reaction to the drug, if you do not experience any other discomfort, it is recommended that you stop taking the drug first and seek medical attention. The generic name of Conxin is Bisoprolol Fumarate, a beta adrenoceptor blocker. It is used for the treatment of hypertension and coronary heart disease (angina). Bisoprolol fumarate can occur during the administration of the drug, bradycardia, worsening of established heart failure, atrioventricular conduction disorders and other adverse reactions, so the consumption of bisoprolol fumarate can occur heartbeat of 50 beats per minute, it is recommended to discontinue the drug and promptly consult a doctor. Bisoprolol fumarate is contraindicated in people with cardiogenic shock, people with second- or third-degree atrioventricular conduction block, and patients with severe bronchial asthma. Bisoprolol fumarate may cause a decrease in glucose tolerance in diabetic patients, masking the manifestations of hypoglycemia (e.g., rapid heartbeat), so regular monitoring of blood glucose is required during the administration of the drug. In addition, bisoprolol fumarate may cause dizziness, headache, and fatigue, so the patient should try to avoid driving, manipulating machinery, or working at heights in order to avoid any danger. During the use of the drug, the occurrence of any discomfort promptly consult the doctor, if there is no physician’s guidance, should not suddenly stop the drug or change the dose, so as not to lead to the deterioration of the condition.