When you come into contact with an allergen, or a trigger, your body produces higher levels of certain types of substances. You may have heard of one type, histamine. Another type is called leukotrienes (loo-koh-TRY-eens). Leukotrienes play an important role in causing allergy symptoms.
These types of substances signal your body to respond to allergens with symptoms such as:
- Stuffy nose
- Runny nose
- Sneezing
- A drip in the back of the throat (postnasal drip) that may cause coughing
The medical term for these symptoms is allergic rhinitis. You probably know it better as hay fever or, simply, indoor and outdoor allergies.
Choose a link below to help you get started.
- What Is an Allergy?
- Read about the basics of indoor and outdoor allergies.
- How to Tell If You Have Allergies
- Learn how to spot the symptoms of indoor and outdoor allergies.
- Allergy Triggers
- Learning the most common indoor and outdoor allergy triggers can help you avoid them. Read more!
- How Do Allergy Medicines Work?
- Allergy medicines do not all work in the same way. Read about the differences.
SINGULAIR® (montelukast sodium) is a prescription medicine approved to help control asthma in adults and children as young as 12 months and to help relieve the symptoms of indoor and outdoor allergies (outdoor allergies in adults and children as young as 2 years, and indoor allergies in adults and children as young as 6 months).
IMPORTANT SAFETY INFORMATION
SINGULAIR should be taken once a day, as prescribed. SINGULAIR is available by prescription only.
Side effects are generally mild and vary by age, and may include headache, ear infection, sore throat, and upper respiratory infection. Side effects generally did not stop patients from taking SINGULAIR. SINGULAIR should not be taken by people who are sensitive to any of its ingredients.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.
For additional safety information, please see Patient Product Information.
