Belongs to a group of medicines known as diuretics (water pills which increase urine production) primarily used to treat high blood pressure, heart failure, and oedema (a build-up of fluid in the body). Hypertension or high blood pressure is a lifelong or chronic condition in which the force exerted by the blood against the blood vessel (arteries wall) increases. The higher this blood pressure, the harder the heart has to pump. As a result, it leads to heart diseases, irregular heartbeat, and other complications. Oedema may occur in case of high blood pressure where fluids of the body get trapped in the tissues of the hands, arms, feet, ankles, and legs, leading to swelling. It contains Chlorthalidone, and it works by increasing the amount of urine passed out from the kidneys. It effectively reduces excess fluid levels in the body and treats oedema (swelling) associated with heart, liver, kidney, or lung disease. This, in turn, reduces the workload on the heart and makes the heart more efficient at pumping blood throughout the body. So, it helps to lower high blood pressure, reducing the chances of heart attack or stroke.