Salmeterol is a long-acting beta2-agonist bronchodilator used to prevent and treat bronchospasm in asthma and chronic obstructive pulmonary disease (COPD).

Inhaled corticosteroids reduce airway inflammation by inhibiting the release of inflammatory mediators from mast cells and eosinophils.

Guaifenesin is an expectorant that works by increasing the volume and fluidity of respiratory secretions, making them easier to cough up.

Leukotriene modifiers work by blocking the actions of leukotrienes, which are inflammatory mediators involved in asthma and allergic rhinitis.

Ipratropium bromide is a short-acting anticholinergic bronchodilator used to relieve bronchospasm in asthma and COPD.

Theophylline inhibits phosphodiesterase, an enzyme that breaks down cyclic adenosine monophosphate (cAMP), resulting in increased intracellular cAMP levels and bronchodilation.

Dextromethorphan is a non-opioid cough suppressant that acts by reducing the activity of the cough center in the medulla oblongata.

Nasal decongestants work by constricting the blood vessels in the nasal passages, reducing swelling and congestion.

Fluticasone is a commonly used inhaled corticosteroid used to prevent and treat asthma and COPD.

Cromolyn sodium works by stabilizing mast cell membranes, preventing the release of inflammatory mediators.

Salmeterol is a long-acting beta2-agonist bronchodilator used to prevent and treat bronchospasm in asthma and COPD.

Nedocromil sodium works by inhibiting the degranulation of mast cells, preventing the release of inflammatory mediators.

Albuterol is a short-acting beta2-agonist bronchodilator used to relieve bronchospasm in asthma and COPD.

Montelukast works by blocking the actions of leukotrienes, which are inflammatory mediators involved in asthma and allergic rhinitis.

Ipratropium bromide is a short-acting anticholinergic bronchodilator used to relieve bronchospasm in asthma and COPD.