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Beta blocker. Skeletal formula of propranolol, the first clinically successful beta blocker. Beta blockers, also spelled β-blockers, are a class of medications that are predominantly used to manage abnormal heart rhythms (arrhythmia), and to protect the heart from a second heart attack after a first heart attack (secondary prevention). [1]
Bradycardia, also called bradyarrhythmia, is a resting heart rate under 60 beats per minute (BPM). [1] While bradycardia can result from various pathologic processes, it is commonly a physiologic response to cardiovascular conditioning or due to asymptomatic type 1 atrioventricular block. Resting heart rates of less than 50 BPM are often normal ...
Adrenergic blocking agent. Adrenergic blocking agents are a class of drugs that exhibit its pharmacological action through inhibiting the action of the sympathetic nervous system [1] in the body. The sympathetic nervous system (SNS) is an autonomic nervous system that we cannot control by will. It triggers a series of responses after the body ...
Additionally, beta 1 blockers can mask hypoglycaemia-induced tachycardia in diabetic patients, potentially leading to hypoglycaemic unawareness and subsequent complications if hypoglycaemia is not treated timely. [4] Beta 1 blockers can also mask catecholamine-triggered neurogenic hypoglycaemic symptoms like tremors and palpitations. [4]
Beta blockers work by blocking the effects of adrenaline, aka slowing your heart rate and reducing those physical signs and symptoms of nervousness and anxiety, he explained. Essentially, think of ...
Beta-blockers, which slow down the heart and reduce the force of its contractions. Ace Inhibitors, which block the formation of Angiotensin II, a chemical that causes blood vessels to constrict ...