Valzaar 40 Tablet belongs to the group of anti-hypertensive medicines called angiotensin receptor II antagonist used to treat hypertension (high blood pressure). Additionally, Valzaar 40 Tablet is used to treat heart failure and prevention of heart attack. The blood exerts increased pressure on the walls of blood vessels leading to high blood pressure. Heart failure occurs when the heart cannot pump sufficient blood to the remaining parts of the body. A heart attack occurs due to the blockage of blood flow to the heart muscle.