Which medication class is used for long-term control of asthma symptoms?

Inhaled corticosteroids are the primary medication class used for long-term control of asthma symptoms due to their ability to reduce inflammation in the airways. By decreasing inflammation, these medications help to prevent the occurrence of asthma exacerbations and improve overall respiratory function. They are considered the cornerstone of asthma management because they address one of the underlying causes of the disease—airway inflammation. Regular use can significantly decrease the need for rescue medications and improve patients' quality of life.

Short-acting beta-agonists are effective for quick relief during an asthma attack but do not provide long-term control. Leukotriene modifiers can also help manage symptoms, but inhaled corticosteroids are generally more effective in controlling inflammation. Antihistamines are primarily used for allergic symptoms and do not address the underlying inflammation in asthma. Thus, inhaled corticosteroids are the most appropriate choice for long-term asthma control.