NAT-MONTELUKAST
NATCO PHARMA (CANADA) INC
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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 there a shortage of NAT-MONTELUKAST in Canada?
Yes. NAT-MONTELUKAST 4MG has an active shortage reported to Health Canada (last updated June 3, 2025).
When will NAT-MONTELUKAST be available again?
The manufacturer's estimated resolution date is December 31, 2026. This is an estimate and can change; follow this page to get an email when the status changes.
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.
Closest Matches
RATIO-MONTELUKAST
TEVA CANADA LIMITED
DOM-MONTELUKAST
DOMINION PHARMACAL
Other Products
SINGULAIR
ORGANON CANADA INC.
BIO-MONTELUKAST
BIOMED PHARMA
MAR-MONTELUKAST
MARCAN PHARMACEUTICALS INC
MINT-MONTELUKAST
MINT PHARMACEUTICALS INC
What this means
Does this mean my pharmacy is out of stock?
Not necessarily — a national shortage doesn't mean every pharmacy has run out. Some locations may still have stock, especially of a specific strength or pack size.
What should I do?
Contact your pharmacy before your current supply runs low, and ask your pharmacist about next steps if they're out.
Estimated Resolution
2026-12-31
~3 months remaining (estimate)
This is the manufacturer's estimated date, not a guarantee — actual resolution may come earlier or later.
DIN
02522101
Strength
4MG
Dosage Form
TABLET (CHEWABLE)
Route
ORAL
Active Ingredient
MONTELUKAST
Tier
Unrated
Last Updated
2025-06-03
Reason for Shortage
Other (Please describe in comments)
Other Products from NATCO PHARMA (CANADA) INC
Other Health Canada-approved products made by the same manufacturer — not necessarily related to this shortage, and not necessarily in shortage themselves.
250MG · DIN 02494132
1MG · DIN 02417855
2.5MG · DIN 02492814
5MG · DIN 02492822
100MG · DIN 02496895
25MG · DIN 02496887
62.5MG · DIN 02467984
125MG · DIN 02467992
20MG · DIN 02496488
10MG · DIN 02496461
40MG · DIN 02409038
20MG · DIN 02409011