Beta blockers

Beta blockers, also called β-blockers, are a group of drugs that are widely used to control irregular heart rhythms, and protect the heart from a second heart attack after a first heart attack.

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What is a beta blocker?

Beta blockers, also known as beta-adrenergic blocking agents, are drugs that lower blood pressure. Beta blockers work by blocking the effects of the hormone epinephrine, also known as adrenaline.

Beta blockers cause the heart to beat more slowly and with less force, which lowers blood pressure. Beta blockers also help dilate arteries and veins to improve blood flow.

What do beta blockers do?

Beta-blockers (beta-adrenoceptor blocking agents) work mainly by reducing heart activity. They do this by blocking the action of hormones such as adrenaline. Beta blockers are prescription only (POM) drugs. This means they can only be prescribed by a GP or qualified health professional.

What are beta blockers used for?

Beta blockers can be used to treat: angina – chest pain caused by the narrowing of the arteries that supply the heart. heart failure – failure of the heart to pump enough blood around the body. atrial fibrillation – irregular heartbeat

How do beta blockers work?

Beta blockers work mainly by slowing down the heart. They do this by blocking the action of hormones like adrenaline. Beta blockers usually come as tablets. They are prescription-only medicines, which means they can only be prescribed by a GP or another suitably qualified healthcare professional.

What heart rate is too low on beta blockers?

Beta blockers can cause your heart to pump less strongly, which can lead to bradycardia (slow heart rate). Your heart rate is usually considered too low when it beats below 60 beats per minute while you are resting. This effect may not always be visible.

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