Beta blockers are a type of medication that is used to treat high blood pressure, heart conditions, and anxiety. There are several synonyms for the term "beta blocker," including beta-adrenergic receptor antagonists, beta antagonists, beta-adrenergic blocking agents, or beta-blockade. These medications work by blocking the beta receptors in the body, which are responsible for regulating the heart rate and blood vessels. By slowing down the heart rate and reducing the force of contraction of the heart, beta blockers can help lower blood pressure and reduce the risk of heart attacks and other cardiovascular events. They can also help reduce the symptoms of anxiety, such as rapid heartbeat and sweating.