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According to the Mayo Clinic, the other side effects of taking beta blockers are: Cold hands or feet. Extreme tiredness. Weight gain. Dizziness or lightheadedness. Shortness of breath. Trouble ...
Lightheadedness is a common and typically unpleasant sensation of dizziness [1] or a feeling that one may faint. The sensation of lightheadedness can be short-lived, prolonged, or, rarely, recurring. In addition to dizziness, the individual may feel as though their head is weightless.
Beta blockers - reduces contractility and automaticity of the heart which reduces irregular rhythms but also lowers blood pressure when symptoms occur, and further reduces perfusion ex: Carvedilol, this will control abnormal heart rhythms, but can precipitate Prinzmetal angina and heart block.
Non-selective beta blockers In some cases, exacerbation of asthma or COPD , and erectile dysfunction are also reported. [ 10 ] For examples, certain non-selective beta blockers, such as carvedilol , can cause edema , and sotalol can block potassium channels in the heart, leading to QT prolongation and an increased risk of torsades de pointes .
Beta blockers, in addition to their sympatholytic β 1 activity in the heart, influence the renin–angiotensin system at the kidneys. Beta blockers cause a decrease in renin secretion, which in turn reduces the heart oxygen demand by lowering the extracellular volume and increasing the
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.
VBI is often considered when a patient complains of dizziness. It is important to distinguish dizziness caused by vertigo from the sensation of being light-headed, as the latter is more commonly a result of other conditions. Brief episodes of vertigo brought on by head movements are more likely to be Benign paroxysmal positional vertigo.
Other causes include Ménière's disease (12%), superior canal dehiscence syndrome, vestibular neuritis, and visual vertigo. [16] [17] Any cause of inflammation such as common cold, influenza, and bacterial infections may cause transient vertigo if it involves the inner ear, as may chemical insults (e.g., aminoglycosides) [18] or physical ...
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