(1) Angina. -Beta-blockers help to prevent angina on exertion or stress by reducing the work done by the heart. (2) High blood pressure. -Beta-blockers are widely used for lowering high blood pressure, though the way they work is still not fully understood. Treatment is commonly combined with diuretics. (3) Abnormal heart rhythms. -Beta-blockers, rather like … Read more
(1) Heart failure. -In severe heart failure the arteries and arterioles may be more constricted than they need be, increasing the work load on the heart. Arterial vasodilators can then help by directly reducing the resistance against which the heart has to pump. Venous vasodilators (venodilators) help the veins carry an increased volume of blood … Read more
(1) Heart failure-which simply means a reduction in the reserve capacity of the heart. This may be caused by a faulty valve in the heart, or by a weakening of the heart muscle itself. … Read more