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Both of these medications activate alpha-1 adrenergic receptors that result in smooth muscle constriction. Non-selective beta blockers are known to facilitate bronchospasm as well. Beta blockers bind to the β2 receptors and block the action of epinephrine and norepinephrine causing shortness of breath. [4]
Many different conditions can lead to the feeling of dyspnea (shortness of breath). DiagnosisPro, an online medical expert system, listed 497 in October 2010. [1] The most common cardiovascular causes are acute myocardial infarction and congestive heart failure while common pulmonary causes include: chronic obstructive pulmonary disease, asthma, pneumothorax, and pneumonia.
Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct ...
Chronic obstructive pulmonary disease (COPD) is a type of progressive lung disease characterized by chronic respiratory symptoms and airflow limitation. [8] GOLD 2024 defined COPD as a heterogeneous lung condition characterized by chronic respiratory symptoms (dyspnea or shortness of breath, cough, sputum production or exacerbations) due to abnormalities of the airways (bronchitis ...
Shortness of breath and wheezing are present in many cases. [5] Exacerbations may be accompanied by increased amount of cough and sputum productions, and a change in appearance of sputum. [citation needed] An abrupt worsening in COPD symptoms may cause rupture of the airways in the lungs, which in turn may cause a spontaneous pneumothorax. [4]
Some CCBs can also cause a fast heart rate as a result of the low blood pressure. [4] Other symptoms may include nausea, vomiting, sleepiness, and shortness of breath. [2] Symptoms usually occur in the first six hours but with some forms of the medication may not start for 24 hours or more. [2] There are a number of treatments that may be ...