A patient has COPD that stems from chronic bronchitis, or swelling of the bronchi and bronchioles. Which type of drug can effectively manage the symptoms of COPD?

Bronchodilators relax the muscles around the airways, widening them and making it easier to move air in and out of the lungs. This can relieve breathing symptoms in COPD; decongestants mainly reduce nasal congestion, while the other choices are used chiefly for asthma or allergies.

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