Acetazolamide in 2026: What's the Current Availability?

If you depend on Acetazolamide for glaucoma, altitude sickness, or idiopathic intracranial hypertension, you may have heard concerns about drug shortages or experienced difficulty getting your prescription filled. In this article, we'll break down the current situation, explain what's behind any availability issues, and give you practical steps to take if you're having trouble finding Acetazolamide.

Is Acetazolamide Still in Shortage?

As of early 2026, Acetazolamide oral tablets are not listed on the FDA or ASHP official drug shortage lists. That's the good news. The generic 125 mg and 250 mg tablets are produced by multiple manufacturers including Teva, Zydus, and Accord, which helps maintain a stable supply.

However, the picture is more nuanced than the official lists suggest:

• The injectable formulation (500 mg powder for reconstitution) has experienced intermittent shortages in recent years due to a very limited number of manufacturers. Hospitals and emergency departments have been the most affected.
• The extended-release capsule (Diamox Sequels, 500 mg) has fewer generic manufacturers and may be harder to find at some pharmacies.
• Localized availability gaps can occur even when the drug isn't officially in shortage. Individual pharmacy distributors may temporarily run out of stock.

Why Is Acetazolamide Hard to Find?

Several factors can make Acetazolamide difficult to locate, even when it's technically available:

Limited Manufacturers for Specialty Formulations

While multiple companies make the oral tablets, the injectable and extended-release forms have far fewer producers. When one manufacturer has a production issue, the remaining supply can quickly dry up.

Low-Volume, Niche Demand

Acetazolamide isn't a high-volume medication like Metformin or Lisinopril. Many retail pharmacies don't stock it routinely, ordering it only when a prescription comes in. This means you may face a 1-2 day wait even under normal supply conditions.

Seasonal Demand Fluctuations

Prescriptions for altitude sickness prevention spike before ski seasons, climbing seasons, and summer travel. Pharmacies in certain regions may run through their stock faster during these periods.

Supply Chain Fragility

The broader pharmaceutical supply chain has faced ongoing challenges with raw materials, manufacturing quality standards, and logistics. These issues can create temporary gaps in Acetazolamide availability at the pharmacy level.

How Much Does Acetazolamide Cost in 2026?

Because Acetazolamide is available as a generic, it's one of the more affordable prescription medications:

• Retail cash price: Approximately $134 for 60 tablets of 250 mg
• With a coupon (GoodRx, SingleCare): As low as $14 to $20 for the same quantity
• With insurance: Typically covered on Tier 1 or Tier 2 (preferred generic), with copays ranging from $0 to $15
• Injectable form: Approximately $42-$54 per vial at retail; lower with coupons

For a detailed breakdown of savings options, see our guide to saving money on Acetazolamide in 2026.

Are There New Options for Patients?

While no new formulations of Acetazolamide have been introduced recently, patients in 2026 have more tools than ever to navigate availability challenges:

• Medfinder — Medfinder lets you search for Acetazolamide in stock at pharmacies near you in real time, eliminating the guesswork.
• Prescription discount cards — Free coupons from GoodRx, SingleCare, and other services can cut the cash price by 80% or more.
• Mail-order pharmacies — Many insurance plans offer mail-order options with 90-day supplies and larger distribution networks.
• Telehealth consultations — If you need a new prescription or want to discuss alternatives, telehealth appointments make it easier to connect with a provider quickly.

How to Find Acetazolamide in Stock

If your pharmacy can't fill your prescription, here's what to do:

1. Search on Medfinder — Visit medfinder.com and enter Acetazolamide with your zip code to find nearby pharmacies with stock.
2. Call independent pharmacies — They often have different supply sources than chain pharmacies.
3. Ask about formulation switches — If the extended-release capsule is unavailable, your doctor may switch you to immediate-release tablets taken twice daily.
4. Consider mail-order — For ongoing prescriptions, mail-order pharmacies tend to have more reliable stock.
5. Talk to your doctor — If you truly can't find Acetazolamide, ask about alternative medications like Methazolamide or topical carbonic anhydrase inhibitors.

For a more detailed walkthrough, see our guide on how to find Acetazolamide in stock near you.

Final Thoughts

Acetazolamide remains an important medication for hundreds of thousands of patients. While it's not in an official shortage as of 2026, supply gaps can still happen — especially for the injectable and extended-release formulations. The key is to be proactive: refill early, use tools like Medfinder, and keep your doctor informed about any access issues.

For more information about this medication, check out our complete guide to what Acetazolamide is and how it works.