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Beta blockers are widely used for the treatment of hypertension. [24] A 2014 Cochrane review found that in individuals with mild-to-moderate hypertension, non-selective beta blockers led to a reduction of -10/-7mmHg (systolic/diastolic) without increased rates of adverse events. [25]
Beta-blockers with intrinsic sympathomimetic activity: acebutolol, pindolol; Some common side effects include increased airway resistance for non-selective beta-blockers, exacerbation of peripheral vascular diseases, and hypotension [15] Beta-blockers are contraindicated in patients with second- or third-degree atrioventricular block.
[11] [28] Compared to placebo, beta-blockers have a greater benefit in stroke reduction, but no difference on coronary heart disease or all-cause mortality. [32] However, three-quarters of active beta-blocker treatments in the randomised controlled trials included in the review used atenolol, and none used the newer vasodilating beta-blockers. [33]
In particular, beta-blockers are no longer recommended as first-line treatment due to relative adverse risk of stroke and new-onset of type 2 diabetes when compared to other medications, [3] while certain specific beta-blockers such as atenolol appear to be less useful in overall treatment of hypertension than several other agents. [36]
The adrenergic antagonists are widely used for lowering blood pressure and relieving hypertension. [16] These antagonists have a been proven to relieve the pain caused by myocardial infarction , and also the infarction size, which correlates with heart rate.
Figure 1: The chemical structure of dichloroisoprenaline or dichloroisoproterenol (), abbreviated DCI — the first β-blocker to be developed. β adrenergic receptor antagonists (also called beta-blockers or β-blockers) were initially developed in the 1960s, for the treatment of angina pectoris but are now also used for hypertension, congestive heart failure and certain arrhythmias. [1]
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Beta blockers are medications that often prevent paroxysmal and labile hypertension as they interact with the sympathetic nervous system. Beta blockers help reduce blood pressure by blocking the effects of hormone epinephrine, also known as adrenaline. The effect of taking beta blockers can help lower the heart rate as well as help improve the ...