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Bronchodilators are medications used to widen the airways in the lungs. They are a cornerstone in the management of various respiratory conditions, particularly those characterized by bronchoconstriction, a narrowing of the bronchial tubes. Common conditions treated with bronchodilators include asthma, chronic obstructive pulmonary disease (COPD), and emphysema.
These medications work by relaxing the smooth muscles that surround the airways. When these muscles contract,
There are several classes of bronchodilators, with the most common being beta-2 adrenergic agonists and anticholinergics.
Bronchodilators are typically administered through inhalation devices, such as metered-dose inhalers (MDIs), dry powder inhalers (DPIs),
While effective, bronchodilators can have side effects. These may include tremors, increased heart rate, nervousness, and