Concor Treating blood pressure 10 mg Tablet 30pcs is used for to slow down the heart rate and make the heart more efficient at pumping blood around the body. Do not use Bisoprolol fumarate If you are allergic to the active substances or any of the other ingredients of this medicine. Warnings and precautions •You have severe asthma or severe chronic lung disease. •You have severe blood circulation problem in limbs (such as Raynaud’s syndrome), which may cause your fingers and toes to tingle or turn pale or blue. •You have untreated phaeochromocytoma, which is a rare tumor of the adrenal gland (medulla). •You have metabolic acidosis, which is a condition when there is too much acid in the blood. •Acute heart failure or heart failure that suddenly becomes worse and / or that may require hospital treatment. •Slow heart rate. •Very low blood pressure. •Certain heart condition causing a very slow heart rate or irregular heartbeat. •Cardiogenic shock, which is an acute serious heart condition causing low blood pressure and circulatory failure.