What is a common indication for bronchodilators like Theo-Dur?

Bronchodilators, such as Theo-Dur (which contains the active ingredient theophylline), are commonly used in the management of asthma. Asthma is a chronic condition characterized by inflammation and narrowing of the airways, leading to difficulty in breathing. Bronchodilators work by relaxing the muscles around the airways, thereby widening the air passages and making it easier for the patient to breathe. They can relieve symptoms like wheezing, coughing, and shortness of breath.

In contrast, the other options provided do not relate to the primary function of bronchodilators. Treating depression involves antidepressants, controlling seizures typically requires anticonvulsants, and reducing intraocular pressure is a characteristic of medications used in treating glaucoma. Bronchodilators specifically target respiratory conditions, making their role in asthma management crucial for improving lung function and patient quality of life.