Singulair (Montelukast) for asthma | MyAsthmaTeam

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Singulair is a prescription drug approved by the U.S. Food and Drug Administration (FDA) to treat asthma in adults and children 12 months of age and older. Singulair is also referred to by its drug name, montelukast.

Singulair is a member of a class of drugs called leukotriene inhibitors. Singulair is believed to work by reducing the production of leukotrienes in the body. Leukotrienes are chemicals involved in airway edema (swelling), smooth muscle contraction, and other processes associated with the symptoms of asthma. Inhibiting (holding back) their production helps to relieve these symptoms.

How do I take it?
Prescribing information states that Singulair is taken orally (by mouth) as a tablet, chewable tablet, or, for very young children, as small granules once daily.

Singulair should be taken exactly as prescribed by a physician.

Side effects
The FDA-approved label for Singulair lists common side effects including upper respiratory infection, fever, headache, sore throat, cough, abdominal pain, diarrhea, middle ear infection, influenza, runny nose, and sinus inflammation.

Rare but serious side effects listed for Singulair include high white blood cell counts and vasculitis (blood vessel inflammation).

For more details about this treatment, visit:

Singulair — Merck

Montelukast (Oral Route) — Mayo Clinic

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