# Montelukast Sodium (Singulair)

Source: https://ourhealthnetwork.com/drugs/montelukast-sodium
Data: FDA Orange Book and OpenFDA, refreshed periodically

## What is Montelukast Sodium?

Montelukast Sodium (brand name: Singulair) is a leukotriene receptor antagonist. It is prescribed to treat asthma, rhinitis, allergic. Across the United States, 189,000 doctors prescribe Montelukast to approximately 2.9 million Medicare patients, making it one of the 50 most prescribed drugs in America.

## Brand names

Singulair

## Indications

Montelukast Sodium is prescribed for several conditions including asthma, rhinitis, allergic, among others.

## Conditions treated

- [Asthma](https://ourhealthnetwork.com/conditions/asthma)
- [Rhinitis](https://ourhealthnetwork.com/conditions/rhinitis)
- [Allergic](https://ourhealthnetwork.com/conditions/allergic)
- [Perennial](https://ourhealthnetwork.com/conditions/perennial)

## Mechanism of action

The cysteinyl leukotrienes (LTC 4 , LTD 4 , LTE 4 ) are products of arachidonic acid metabolism and are released from various cells, including mast cells and eosinophils. These eicosanoids bind to cysteinyl leukotriene (CysLT) receptors.

## Drug classification

- Established Pharmacologic Class: Leukotriene Receptor Antagonist
- Mechanism of Action class: Leukotriene Receptor Antagonists [MoA]
- Route of administration: ORAL

## Common side effects

adverse reactions (incidence ≥5% and greater than placebo listed in descending order of frequency): upper respiratory infection, fever, headache, pharyngitis, cough, abdominal pain, diarrhea, otitis media, influenza, rhinorrhea, sinusitis, otitis ( 6

## Sources and disclaimers

- FDA Orange Book and OpenFDA dataset
- This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional before starting, stopping, or changing any medication.

## Related

- [All drugs](https://ourhealthnetwork.com/drugs)
- [Find specialists who prescribe this drug](https://ourhealthnetwork.com/find-doctors)
- [Methodology](https://ourhealthnetwork.com/methodology)