CARDIOLITE 50MG TABLETAtenolol 50mg Tablet primarily works by selectively blocking beta 1 adrenergic receptors in the heart, which are responsible for the effects of catecholamines like norepinephrine and epinephrine. This blockage reduces cardiac output by decreasing heart rate and myocardial contractility. As a result, the heart beats more slowly and with less force, leading to a reduction in blood pressure. By blocking these receptors, Atenolol inhibits the sympathetic