Bisoprolol belongs to a family of drugs known as beta-blockers. These drugs work by changing the way the body responds to the nerve impulses, specifically the heart. They block the action of some natural chemicals such as epinephrine acting on the heart.
In this way, the heart beats remain normal so that blood is pumped all around the body without any complications in the way. It is used to control high blood pressure and also prevents strokes and heart attacks.