Asmanex has been hard to find since 2024. Learn why this inhaled corticosteroid is in short supply, what's causing the shortage, and what you can do right now.
If you've been to your pharmacy recently and heard the words "we don't have it in stock," you already know: Asmanex has been hard to find. Whether you use the Asmanex Twisthaler or Asmanex HFA, patients across the country have been dealing with supply problems since mid-2024 — and the situation hasn't fully resolved heading into 2026.
This isn't just an inconvenience. For people who rely on Asmanex (mometasone furoate) to keep their asthma under control, a missing refill can mean worsening symptoms, emergency room visits, and real anxiety about what comes next.
Let's break down what's going on, why it's happening, and — most importantly — what you can do about it.
Asmanex is a brand-name inhaled corticosteroid (ICS) made by Organon. Its active ingredient is mometasone furoate, which reduces inflammation in the airways to help prevent asthma attacks. It comes in two main forms:
Asmanex is a maintenance medication — you take it daily to prevent symptoms. It is not a rescue inhaler and won't help during an active asthma attack. It's been FDA-approved since 2005 and is prescribed by pulmonologists, allergists, and primary care doctors.
There's no single reason for the Asmanex shortage — it's a combination of factors that came together at the worst possible time.
In late 2023, GlaxoSmithKline (GSK) discontinued Flovent HFA and Flovent Diskus, two of the most widely prescribed inhaled corticosteroids in the United States. Millions of patients who depended on Flovent suddenly needed a new controller inhaler. Many of them — and their doctors — turned to Asmanex as a substitute.
Organon, which makes Asmanex, wasn't prepared for a sudden spike in demand of that magnitude. Manufacturing capacity couldn't keep up, and pharmacies began running out.
Inhaled medications are complex to manufacture. The devices — Twisthalers and HFA canisters — require specialized production lines. Scaling up production isn't as simple as flipping a switch. According to ASHP (American Society of Health-System Pharmacists), Asmanex HFA 50 mcg and 100 mcg inhalers were placed on back order in 2024 and 2025, with estimated resupply dates repeatedly pushed back.
Reports from late 2025 suggest that Organon may be discontinuing certain Asmanex Twisthaler presentations. The 220 mcg/30-dose Twisthaler was reportedly slated for discontinuation in early 2026. This has created additional uncertainty and panic-buying among patients who depend on that specific formulation.
As of March 2026, the FDA has not approved a generic version of either Asmanex Twisthaler or Asmanex HFA. Unlike many other asthma medications that have gone generic, Asmanex remains brand-only. This means there's no alternative manufacturer to pick up the slack when Organon can't meet demand.
If you're struggling to find Asmanex, here are some practical steps:
Tools like Medfinder can help you check which pharmacies near you have Asmanex in stock right now — saving you the frustration of calling pharmacy after pharmacy.
Chain pharmacies (CVS, Walgreens, Rite Aid) tend to get hit hardest during shortages because they serve the most patients. Independent pharmacies may have different supply chains and could still have Asmanex available. Learn more in our guide on how to find Asmanex in stock near you.
If Asmanex is unavailable for an extended period, your doctor may recommend switching to a different inhaled corticosteroid. Options include generic fluticasone (formerly Flovent), budesonide (Pulmicort), beclomethasone (QVAR RediHaler), or ciclesonide (Alvesco). Read our full breakdown of alternatives to Asmanex.
If cost is a factor, Organon offers a savings card for commercially insured patients that can bring your copay down to as low as $15 per prescription. Visit asmanex.com to register. For more savings strategies, see our guide on how to save money on Asmanex.
If you have any Asmanex left, don't wait until the inhaler reads "00" to start looking for a refill. Begin the process early — at least two weeks before you run out — to give yourself time to find a pharmacy with stock.
The Asmanex shortage is frustrating, but it's manageable with the right information and a little persistence. The key is to start early, explore all your options, and stay in close contact with your prescriber. If your current pharmacy can't fill your prescription, don't give up — there are tools and resources that can help you find what you need.
For the latest updates on Asmanex availability, check out our 2026 Asmanex shortage update.
You focus on staying healthy. We'll handle the rest.
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