How Asthma Medications Work

Asthma is a chronic inflammatory disease characterized by recurring episodes of wheezing, shortness of breath, coughing, and chest tightness. The primary goal of asthma medications is to control inflammation, prevent symptoms, and improve lung function.

Gold Standard: Inhaled Corticosteroids

The gold standard for managing asthma is inhaled corticosteroids (ICS), which are bronchodilators that reduce airway inflammation. ICS work by:

• Reducing the production of inflammatory chemicals, such as histamine and leukotrienes

• Inhibiting the activation of immune cells, like eosinophils and mast cells

• Decreasing airway responsiveness to stimuli

Alternatives and Add-On Therapies

For patients who do not respond adequately to ICS or require additional symptom control, alternative medications may be prescribed. These include:

• Leukotriene modifiers: Block the action of leukotrienes, which are involved in inflammation and airway constriction

• Long-Acting Beta-Agonists (LABAs): Relax airway smooth muscle and improve lung function, but should not be used as monotherapy due to increased risk of exacerbations

• Combination ICS and LABAs: Used for patients who require both anti-inflammatory and bronchodilatory effects