Montelukast is used as a long-term (maintenance) treatment to prevent or treat asthma. It may also be used in people older than 14 years to prevent asthma brought on by exercise (bronchospasm).
This medication is also used to treat allergic rhinitis, also known as allergies or hay fever.
Montelukast works by blocking certain substances (leukotrienes) in the body. This effect helps to decrease symptoms (e.g., breathing...
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