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Montelukast shortage — availability across Europe

Name: European Medicine Shortage Tracker dataset
Creator: MobiDoctor
License: https://creativecommons.org/licenses/by/4.0/

Availability information only — Mobi Doctor doesn't sell medicines; check with a pharmacy.

MEDICALLY REVIEWED

Dr. Chrysoula I. Liakou MD, PhD

Internal Medicine Specialist
Cancer Immunology Researcher

Reviewed 30 July 2026 · next review due 30 January 2027

Montelukast currently has availability issues reported in 5 European registers: Austria, Spain, Ireland, Italy, Sweden.

Shortage ATC — · also listed as: MONTELUKAST NATRIUM · MONTELUKAST · montelukastnatrium · data refreshed 8 September 2026

Key facts

As of 8 September 2026, Montelukast has active availability issues in 5 of 9 tracked European registers.
Registers reporting issues: Austria, Spain, Ireland, Italy, Sweden.
Latest expected-resolution date on file: 2027-03-23.
Longest-running open report: since 2024-07-24 (26 months, Sweden).
Data source: 5 official medicines-agency registers, refreshed daily.

As of 8 September 2026, 5 of the 9 tracked registers list current availability issues for Montelukast, covering 14 affected product presentations. The longest-running open report was filed in Sweden on 2024-07-24 and has now been open for about 26 months. Where agencies state a cause, manufacturing problems lead with 2 of the 4 stated-cause reports, followed by quality issues with 1. The furthest expected-resolution date currently on file is 2027-03-23; the earliest is 2026-11-24. Notably, 6 reports have already passed the expected-resolution date without closing — prognoses for this medicine should be read as estimates, not commitments. Momentum is current, not historical: 3 of the open reports were filed within the last 90 days. The issue spread across registers over time rather than at once: Sweden reported first (2024-07-24), with Spain following roughly 21 months later — a pattern typical of supply problems cascading between national markets. Registers in Spain, Ireland, Italy, Sweden indicate that alternatives or equivalents are available — a pharmacist or doctor can advise on switching.

Where	Status & products	Since	Expected end	Reason / alternatives	Source
🇦🇹 Austria	Shortage Lanair 10 mg - Filmtabletten + 2 more products Lanair 4 mg - Kautabletten Lanair 5 mg - Kautabletten	2026-01-15	—	—	register ↗
🇪🇸 Spain	Shortage MONTELUKAST KERN PHARMA 4 mg COMPRIMIDOS MASTICABLES EFG, 28 comprimidos + 1 more products MONTELUKAST VIATRIS 5 MG COMPRIMIDOS MASTICABLES EFG, 28 comprimidos (Al/Al)	2026-04-07	2027-03-23	Existen otros medicamentos con el mismo principio activo y misma vía. Alternatives: Existe/n otro/s medicamento/s con el mismo principio activo y para la misma vía de administración.	register ↗
🇮🇪 Ireland	Shortage Montelukast Paediatric 4mg Chewable Tablets + 2 more products Montelukast Paediatric 5mg Chewable Tablets Montelukast Viatris 5 mg Chewable Tablets	2024-09-23	2026-07-31	Quality issue (Multiple countries) Alternatives: Alternative(s) available — see the national register.	register ↗
🇮🇹 Italy	Shortage MONTELUKAST ACCORD	2026-02-27	—	Elevata richiesta Alternatives: AIFA: equivalents with the same active substance are available.	register ↗
🇸🇪 Sweden	Shortage Montelukast Accord 4 mg Tuggtablett + 4 more products Montelukast Accord 5 mg Tuggtablett Montelukast STADA 4 mg Tuggtablett Montelukast STADA 4 mg Tuggtablett Montelukast STADA 5 mg Tuggtablett	2024-07-24	2026-08-28	— Alternatives: Alternative(s) available — see the national register.	register ↗

New register reports per month

Full report history (14 register entries)

Every individual register entry for Montelukast in the tracked sources, newest first — including resolved and discontinued reports.

Reg.	Product	Status	Reported	Expected end	Stated reason
🇪🇸 ES	MONTELUKAST KERN PHARMA 4 mg COMPRIMIDOS MASTICABLES EFG, 28 comprimid	Shortage	2026-08-24	2026-11-24	Existen otros medicamentos con el mismo principio activo y m
🇮🇪 IE	Montelukast Viatris 5 mg Chewable Tablets	Shortage	2026-07-01	—	Manufacturing delay (Multiple countries)
🇸🇪 SE	Montelukast STADA 5 mg Tuggtablett	Shortage	2026-06-22	2026-07-30
🇪🇸 ES	MONTELUKAST VIATRIS 5 MG COMPRIMIDOS MASTICABLES EFG, 28 comprimidos (	Shortage	2026-04-07	2027-03-23	Existen otros medicamentos con el mismo principio activo y m
🇮🇹 IT	MONTELUKAST ACCORD	Shortage	2026-02-27	—	Elevata richiesta
🇦🇹 AT	Lanair 10 mg - Filmtabletten	Shortage	2026-02-10	—
🇮🇪 IE	Montelukast Paediatric 5mg Chewable Tablets	Shortage	2026-02-03	—	Manufacturing delay
🇦🇹 AT	Lanair 4 mg - Kautabletten	Shortage	2026-01-15	—
🇦🇹 AT	Lanair 5 mg - Kautabletten	Shortage	2026-01-15	—
🇸🇪 SE	Montelukast STADA 4 mg Tuggtablett	Shortage	2026-01-01	2026-07-30
🇸🇪 SE	Montelukast STADA 4 mg Tuggtablett	Shortage	2025-08-11	2026-07-30
🇸🇪 SE	Montelukast Accord 5 mg Tuggtablett	Shortage	2024-11-13	2026-08-28
🇮🇪 IE	Montelukast Paediatric 4mg Chewable Tablets	Shortage	2024-09-23	2026-07-31	Quality issue (Multiple countries)
🇸🇪 SE	Montelukast Accord 4 mg Tuggtablett	Shortage	2024-07-24	2026-08-28

Frequently asked

Is Montelukast currently in shortage in Europe?

Yes. As of 8 September 2026, availability issues are reported in: Austria, Spain, Ireland, Italy, Sweden. Availability is national — a shortage in one country does not mean it is short everywhere.

When is the Montelukast shortage expected to end?

Agency prognoses on file range from 2026-11-24 to 2027-03-23. These are manufacturer-reported estimates and frequently move; check the linked register entry for the latest date.

Are there alternatives to Montelukast?

11 of the active register entries indicate alternatives or equivalents (same active substance or an alternative treatment). Do not switch on your own — a pharmacist or prescriber can confirm the right substitute in your country.

Where does this Montelukast availability data come from?

Directly from the official medicines-agency registers that list Montelukast: BASG (Austria), AEMPS CIMA (Spain), HPRA (Ireland), AIFA (Italy), Läkemedelsverket (Sweden). Every row on this page links to the underlying official record, and the dataset is refreshed from the primary sources every morning. Cross-language matching groups the same active substance across registers, so national spellings all resolve to this page.

Embed this tracker

Pharmacies, patient sites and newsrooms are welcome to embed the live status of Montelukast — free, with attribution. Copy this snippet:

<iframe src="https://www.mobidoctor.eu/medicine-shortages/medicine-shortages/montelukast/embed.html" width="100%" height="150" loading="lazy" style="border:1px solid #e1e0d9;border-radius:12px" title="Montelukast availability in Europe"></iframe>
<p style="font-size:12px">Source: <a href="https://www.mobidoctor.eu/medicine-shortages/medicine-shortages/montelukast/">Montelukast shortage status — European Medicine Shortage Tracker</a> by MobiDoctor</p>

Cite: “Montelukast: availability status across 5 European registers — European Medicine Shortage Tracker (MobiDoctor), 8 September 2026.” Link this page and the agency record. Statuses come from the linked official registers and can change daily.