Who can montelukast be prescribed for?

Montelukast is a leukotriene receptor antagonist that is primarily used to manage asthma and allergic rhinitis. Its effectiveness in improving respiratory function and reducing the frequency of asthma attacks makes it particularly suitable for children with moderate persistent asthma. In this population, montelukast can help control symptoms and enhance overall lung function, ultimately improving the quality of life for these patients.

In contrast, its use in infants with viral infections is not appropriate, as montelukast is not indicated for treating viral illnesses and may not have a beneficial effect in that context. While adults with chronic obstructive pulmonary disease (COPD) may also benefit from medications that reduce inflammation and bronchoconstriction, montelukast is not a first-line treatment for COPD. Moreover, while elderly patients with hay fever may require treatment for allergic rhinitis, other medications may be more appropriate, and the use of montelukast would depend on the individual’s overall health status and specific symptoms. Thus, option C correctly identifies the intended use of montelukast for children with moderate persistent asthma.