Why Is Dorzolamide So Hard to Find? [Explained for 2026]

You've just left the eye doctor's office with a prescription for dorzolamide eye drops, and your pharmacy says they're out of stock — or worse, they've never even heard of it. You're not alone. Despite being one of the more commonly prescribed glaucoma medications in the U.S. (with over 2 million prescriptions written in 2023), dorzolamide can occasionally be surprisingly tricky to locate at your local pharmacy.

So what gives? Is there a dorzolamide shortage in 2026? And what can you actually do if your pharmacy doesn't have it? This article breaks it all down in plain English.

Is There a Dorzolamide Shortage in 2026?

As of early 2026, there is no active FDA-declared nationwide shortage of dorzolamide. The drug is manufactured as a generic by multiple companies following the discontinuation of the brand-name Trusopt. Generic competition generally keeps supply more stable than single-manufacturer branded drugs.

However, "no nationwide shortage" doesn't mean it's always on the shelf at your nearest pharmacy. Localized stock-outs happen for several reasons — and for a glaucoma patient who depends on consistent treatment to protect their vision, even a short delay can feel urgent.

Why Might Your Pharmacy Be Out of Dorzolamide?

There are several common reasons patients run into availability issues with dorzolamide, even without a formal shortage:

• Low inventory at small or independent pharmacies. Dorzolamide is a specialty ophthalmic medication. Smaller pharmacies may carry limited quantities and not restock quickly.
• Generic manufacturer supply chain issues. When multiple generics are on the market, a disruption at one manufacturer can shift demand to others, temporarily exhausting local stock.
• Confusion between dorzolamide and dorzolamide/timolol. Your prescription might be for the single agent (dorzolamide 2%) or the combination product (Cosopt/generic dorzolamide-timolol). Some pharmacies only stock one or the other.
• Insurance or formulary issues. Your plan may require a specific manufacturer's generic or the combination product, which your pharmacy might not have in stock.
• Timing of refill requests. If you try to refill before your pharmacy has restocked, you may get an "out of stock" message that resolves itself in a day or two.

Why Dorzolamide Availability Matters — This Isn't a Drug You Can Skip

Dorzolamide is prescribed to treat elevated intraocular pressure (IOP) in people with open-angle glaucoma or ocular hypertension. High IOP is the main risk factor for optic nerve damage — and optic nerve damage can mean permanent, irreversible vision loss.

Unlike some medications where missing a dose or two is a minor inconvenience, consistent use of glaucoma eye drops is critical. Missing doses for several days can allow IOP to climb back up. For patients already on the edge of safe pressure levels, even short gaps in treatment can be a concern. This is why finding your medication quickly matters.

What Happened to Trusopt? Understanding the Brand-to-Generic Transition

Trusopt was the original brand-name version of dorzolamide, developed by Merck. The brand has since been discontinued in the U.S. market, which means you can no longer get Trusopt specifically — you'll receive a generic version. This transition is not a shortage; it just means patients and even some pharmacists may be momentarily confused when a prescription is written for "Trusopt."

The good news: generic dorzolamide 2% ophthalmic solution is bioequivalent to Trusopt. Multiple manufacturers now produce it, which generally supports availability and keeps prices low.

How to Find Dorzolamide in Stock Near You

If your pharmacy is out of dorzolamide, here are concrete steps to take:

1. Call multiple pharmacies. Major chains like CVS, Walgreens, Walmart, and Costco pharmacy all typically carry generic dorzolamide, but stock varies by location.
2. Use medfinder. medfinder.com calls pharmacies near you to check which ones have your exact medication in stock, so you don't have to spend hours on the phone.
3. Try mail-order pharmacy. Mail-order pharmacies typically stock generics in larger quantities. If you have a 90-day supply prescription, this is worth exploring through your insurance's pharmacy benefit.
4. Ask about the combination product. If you're being prescribed dorzolamide alone, ask your eye doctor if dorzolamide/timolol (generic Cosopt) might be appropriate — it's widely available and may even simplify your regimen.
5. Contact your eye doctor about alternatives. If your specific pharmacy consistently can't fill your prescription, ask your ophthalmologist about switching to brinzolamide (Azopt) or another IOP-lowering medication that's easier to source locally.

Does Insurance Make Finding Dorzolamide Harder?

Sometimes, yes. Insurance plans often limit coverage to specific manufacturers of generic drugs or require a specific formulation. If your plan only covers a generic from Manufacturer A and your pharmacy only stocks Manufacturer B's version, you can end up stuck. In these situations, it's worth calling your insurance's pharmacy line to confirm which generics are covered at which pharmacies.

In some cases, a GoodRx or SingleCare coupon may be cheaper than your insurance copay — even for a generic like dorzolamide. Coupon prices for dorzolamide 2% 10mL can be as low as $15 at certain pharmacies.

The Bottom Line: Dorzolamide Is Generally Available, But Gaps Happen

Dorzolamide is not in a national shortage, but individual pharmacies do run out from time to time. Because consistent use is critical for glaucoma management, it's worth being proactive: know multiple pharmacies that carry it, consider mail-order for convenience, and learn your options if your usual source is ever dry. For more detailed tips, see our guide on how to find dorzolamide in stock near you.

If you're currently struggling to fill your prescription, medfinder can help. Enter your medication and zip code, and we'll call pharmacies near you to find which ones have dorzolamide in stock — saving you time and stress when your vision depends on it.