Bronchodilators

Definition

Bronchodilators are medications that relax the muscles around the airways, increasing airflow to the lungs. They are commonly used to treat respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD).

5 Must Know Facts For Your Next Test

1. Bronchodilators can be classified into short-acting and long-acting types based on their duration of action.
2. Common classes of bronchodilators include beta-agonists, anticholinergics, and methylxanthines.
3. Short-acting bronchodilators provide quick relief from acute symptoms, while long-acting ones help in maintaining open airways over time.
4. Side effects may include tremors, tachycardia, and dry mouth depending on the class of bronchodilator used.
5. Bronchodilators can be administered via inhalers, nebulizers, or oral tablets.

Review Questions

• What are the primary differences between short-acting and long-acting bronchodilators?
• Name three common classes of bronchodilators and give an example for each.
• What are some potential side effects associated with the use of bronchodilators?

Related terms

Asthma:

A chronic inflammatory condition of the airways characterized by episodes of wheezing, breathlessness, chest tightness, and coughing.

COPD:

Chronic Obstructive Pulmonary Disease is a group of lung conditions that cause breathing difficulties including emphysema and chronic bronchitis.

Beta-Agonists: A class of drugs that stimulate beta receptors in the lungs to relax airway muscles and improve airflow.