Asthma Info
Merck & Co., Inc.
SINGULAIR
  • Prescribing Information
  • Patient Product Information
  • Information for Healthcare Professionals
  • Singulair for Seasonal Allergies

Prescribing Information

SINGULAIR®
(MONTELUKAST SODIUM)
TABLETS, CHEWABLE TABLETS, AND ORAL GRANULES

View the Prescribing Information in PDF Format [English]
View the Prescribing Information in PDF Format [Spanish]

SINGULAIR 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 will NOT replace fast-acting inhalers for sudden symptoms. Your child should still have rescue medication available and continue to take other asthma medications unless the doctor tells your child to stop. For asthma, SINGULAIR should be taken once a day, in the evening as prescribed, whether or not your child has asthma symptoms. If asthma symptoms get worse or your child needs to increase the use of his or her rescue inhaler, call the doctor at once.

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 is available by prescription only.

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.

This site is intended only for residents of the United States, its territories, and Puerto Rico.
SINGULAIR and MerckServices are registered trademarks of Merck & Co., Inc. MerckSource is a trademark of Merck & Co., Inc.
20853090(1)-02/09-SNG