Beta blockers are medications used to lower blood pressure and manage heart rhythms. See a list of the different types of beta blocker such as metoprolol, atenolol, and more. Beta blockers are medicines that lower blood pressure. They also may be called beta-adrenergic blocking agents. These medicines block the effects of the hormone epinephrine, also known as adrenaline. Beta blockers cause the heart to beat more slowly and with less force. This lowers blood pressure. Beta blockers are widely used for the treatment of hypertension. Beta blockers, also known as beta-adrenergic blocking agents, are a class of drugs that works by blocking the neurotransmitters norepinephrine and epinephrine from binding to receptors. Compare beta-adrenergic blocking agents (beta blockers). View important safety information, ratings, user reviews, popularity and more. Beta-blockers are a class of medication used to block the effects of stress hormones such as adrenaline on the heart. Beta-blockers are a widely used class of drugs in cardiovascular medicine. They block the effects of catecholamines, particularly norepinephrine and epinephrine, on beta-adrenergic receptors. Beta blockers, also known as beta-adrenergic blocking agents, are drugs that block norepinephrine and epinephrine (adrenaline) from binding to beta receptors on nerves. Beta-blockers lower your blood pressure and treat conditions such as heart failure, angina, and migraine. Some only work on your heart, while some affect other parts of your body. Beta-blockers are a class of prescription medications that treat a wide range of cardiovascular conditions. They slow down your heart rate and relax your heart and blood vessels. This may help lower your blood pressure and improve the working conditions of your heart.