SINGULAIR
ORGANON CANADA INC.
This is a national manufacturer shortage report. It does not confirm whether the product is unavailable at your local pharmacy — call ahead or ask your pharmacist.
Quick answers
Is SINGULAIR discontinued in Canada?
Yes. The manufacturer has reported to Health Canada that SINGULAIR 4MG has been permanently discontinued (last updated December 3, 2025). It is not expected to come back, so talk to your pharmacist or doctor about an alternative.
Why is SINGULAIR not available?
The reason the manufacturer reported: Business reasons.
Other Products Containing the Same Active Ingredient
These are other Health Canada-approved human drug products containing the same active ingredient, not currently reported in shortage. Strength, dosage form, and route can still differ — ask your pharmacist whether any of these are appropriate for you. This isn't a guarantee of current stock.
Other Products
RATIO-MONTELUKAST
TEVA CANADA LIMITED
DOM-MONTELUKAST
DOMINION PHARMACAL
SINGULAIR
ORGANON CANADA INC.
BIO-MONTELUKAST
BIOMED PHARMA
MAR-MONTELUKAST
MARCAN PHARMACEUTICALS INC
MINT-MONTELUKAST
MINT PHARMACEUTICALS INC
What this means
Does this mean I need to switch medications right away?
Not necessarily right away, but this product will not be returning to the market.
What should I do?
Talk to your pharmacist or prescriber about your options well before your current supply runs out.
DIN
02247997
Strength
4MG
Dosage Form
GRANULES
Route
ORAL
Compare with another product →
Shortage History
Other Products from ORGANON CANADA INC.
Other Health Canada-approved products made by the same manufacturer — not necessarily related to this shortage, and not necessarily in shortage themselves.
400MCG · DIN 02243596
200MCG · DIN 02243595
100MCG · DIN 02438690
DIN 00028096
DIN 00263818
DIN 00821373
DIN 00502790
25MG · DIN 02182815
50MG · DIN 02182874
100MG · DIN 02182882
0.05% · DIN 00629367
DIN 00578436