Why Is Dexamethasone/Tobramycin So Hard to Find? [Explained for 2026]

You just left the eye doctor with a prescription for Dexamethasone/Tobramycin — only to hear those dreaded words at the pharmacy: "We don't have it in stock." If this has happened to you, you're not alone. Many patients dealing with eye infections and inflammation are struggling to fill their prescriptions for this common ophthalmic medication.

In this guide, we'll explain what Dexamethasone/Tobramycin is, why it can be difficult to find, and — most importantly — what you can do to get the eye drops you need.

What Is Dexamethasone/Tobramycin?

Dexamethasone/Tobramycin is a prescription eye drop (and ointment) that combines two active ingredients: Tobramycin, an aminoglycoside antibiotic that fights bacterial infections, and Dexamethasone, a corticosteroid that reduces inflammation, swelling, and redness.

You may know it by its brand names, TobraDex and TobraDex ST. It belongs to the drug class known as ophthalmic steroids with anti-infectives. Doctors prescribe it for conditions like eye inflammation from uveitis, eye injuries, chemical burns, and post-surgical care where there's a risk of bacterial infection.

Why Is Dexamethasone/Tobramycin Hard to Find?

While Dexamethasone/Tobramycin is not currently on the FDA's official drug shortage list as of early 2026, many patients still run into problems finding it at their local pharmacy. Here are the main reasons why:

1. Specialty Eye Drops Aren't Always Stocked

Unlike common medications such as blood pressure pills or antibiotics, ophthalmic combination products are considered specialty items. Many chain pharmacies only stock the most frequently dispensed eye medications and may not keep Dexamethasone/Tobramycin on their shelves at all times. This is especially true for the brand-name versions (TobraDex and TobraDex ST), which move more slowly than the generic.

2. Supply Chain Disruptions in Pharmaceutical Manufacturing

The pharmaceutical supply chain has faced ongoing challenges since 2020. Sterile ophthalmic products require specialized manufacturing facilities and strict quality controls. Any disruption at a single manufacturing site — from equipment maintenance to regulatory inspections — can create ripple effects that leave pharmacies waiting weeks for new shipments.

3. Limited Number of Generic Manufacturers

While generic Tobramycin/Dexamethasone suspension is available, only a handful of manufacturers produce it. Sterile eye drop production requires significant investment in cleanroom facilities and FDA compliance. With fewer players in the market, any production hiccup from one manufacturer can lead to temporary stock-outs at pharmacies across the country.

4. Pharmacy Inventory Practices

Modern pharmacies use just-in-time inventory systems to reduce waste. This means they order medications based on recent demand rather than keeping large stockpiles. If your pharmacy hasn't filled a Dexamethasone/Tobramycin prescription in a while, they may not have any on hand — and it could take a day or two to order it from their distributor.

What You Can Do if You Can't Find Dexamethasone/Tobramycin

If your pharmacy doesn't have Dexamethasone/Tobramycin in stock, don't panic. Here are some practical steps you can take:

• Use Medfinder to check pharmacy availability — Medfinder helps you search for pharmacies near you that have your medication in stock, saving you time and phone calls.
• Ask your pharmacy to order it — Most pharmacies can order the generic version from their distributor and have it within 1-2 business days.
• Try independent pharmacies — Independent pharmacies near ophthalmology clinics often stock specialty eye medications that chain pharmacies don't carry regularly.
• Ask your doctor about the ointment form — If the eye drop suspension is unavailable, the Dexamethasone/Tobramycin ointment may be in stock. It contains the same active ingredients and may be an option depending on your condition.
• Talk to your doctor about alternatives — Medications like Zylet (Tobramycin/Loteprednol) or Maxitrol (Neomycin/Polymyxin B/Dexamethasone) work in similar ways. Read more in our guide on alternatives to Dexamethasone/Tobramycin.
• Request generic specifically — The generic version of Tobramycin/Dexamethasone suspension is more widely available and significantly less expensive than brand-name TobraDex.

How Much Does Dexamethasone/Tobramycin Cost?

Cost can also be a factor in availability. Brand-name TobraDex suspension typically costs $200 to $350 without insurance. The generic version is much more affordable, starting around $28 to $55 with a discount card. The TobraDex ointment can run $290 to $385 at retail price. If cost is a concern, check out our guide on how to save money on Dexamethasone/Tobramycin.

When to Call Your Doctor

Eye infections and inflammation can worsen quickly without treatment. If you can't find Dexamethasone/Tobramycin within a day or two, contact your prescriber. They can call in the prescription to another pharmacy that has it in stock, switch you to an available alternative, or adjust your treatment plan. Don't wait too long — untreated eye conditions can lead to serious complications.

Final Thoughts

Finding Dexamethasone/Tobramycin in 2026 can take a little extra effort, but it's far from impossible. The generic version is widely manufactured and generally available — the challenge is usually finding a pharmacy that has it on hand when you need it. Tools like Medfinder can help you locate pharmacies with stock near you, and your doctor can always help you find the right solution if your first pharmacy comes up empty.

Next steps: Read our guide on how to find Dexamethasone/Tobramycin in stock near you for more practical tips.