Singulair
- Manufacturer's site. Includes possible side effects, prescribing information and proper usage instructions.
- http://www.singulair.com/

MedlinePlus- Montelukast
- From the U.S. National Library of Medicine and National Institutes of Health. Includes information on the use of Montelukast, precations, and appropriate storage conditions.
- http://www.nlm.nih.gov/medlineplus/druginfo/medmaster/a600014.html

Montelukast - UK Medicines Information
- Information in PDF format, detailing efficacy, adverse effects, promotional data, and major clinical trial information. [Requires Adobe Acrobat Reader]
- http://www.ukmi.nhs.uk/NewMaterial/html/docs/montelukast.pdf

Montelukast - National Asthma Council Australia
- Describes this leukotriene receptor antagonist medication, including the indications, advantages and dosage.
- http://www.nationalasthma.org.au/publications/amh/med_preventer_le.htm

Motelukast Sodium
- Full prescribing information from RxList.
- http://www.rxlist.com/cgi/generic3/monteluk.htm

DrugDigest: Montelukast
- Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,725%7CMontelukast,00.html