Beta Blockers - Uses and Mechanism of Action

Beta blockers are a type of medication commonly used to treat high blood pressure, heart rhythm disorders, and certain heart conditions by blocking the effects of adrenaline.

Beta Blockers FAQ

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Are beta blockers safe?

There are some conditions in which beta blockers are not recommended. This includes uncontrolled heart failure, hypotension (low blood pressure), certain problems with the rhythm of your heart, or bradycardia (a very slow heart beat).

How do beta blockers affect the heart?

The 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 also help widen veins and arteries to improve blood flow. Some beta blockers mainly affect the heart.

How do different types of beta-blockers work?

Different types of beta-blockers work differently. In general, these medications enhance the heart’s ability to relax. Your heart will beat slower and less forcefully when beta-blockers are working. This can help reduce blood pressure and alleviate irregular heart rhythms.

What are the side effects of beta-blockers?

Because beta-blockers affect your heart and circulatory systems, they can have a wide range of side effects. As a result, healthcare providers often prescribe specific beta-blockers to limit or avoid these side effects. Common side effects of all beta-blockers include: Slow heart rate (bradycardia). Low blood pressure (hypotension).

What is a beta blocker used for?

Beta-blockers are often used to control the fast heart rate in atrial fibrillation. Calcium-channel blockers are an alternative medicine that can be used for this problem. Help to treat heart failure. Lower your blood pressure if you have high blood pressure. Treat postural tachycardia syndrome (PoTS).

Which beta-blockers are used in the treatment of heart failure?

The beta-blockers licensed in the UK for the treatment of heart failure are bisoprolol, carvedilol, and nebivolol. Nebivolol is licensed for stable mild to moderate heart failure in people aged 70 years or older.

Do beta-blockers reduce blood pressure?

Beta-blockers can help to reduce blood pressure by widening arteries. Some beta-blockers are known to reduce levels of a protein called renin; this helps to control blood pressure. There are different types of beta-blocker. Non-selective beta-blockers block beta receptors all around your body.