Benadryl Shortage Update: What Patients Need to Know in 2026

If you've searched for Benadryl (diphenhydramine) and run into confusing or conflicting information about whether it's in a shortage, you're not alone. Here's the clear, up-to-date picture for 2026.

Current Status (2026): Is Benadryl in a Shortage?

The bottom line:

Oral diphenhydramine (tablets, capsules, liquid): No formal national shortage. Widely available as of early 2026 from multiple generic manufacturers.

Injectable diphenhydramine: A shortage that ran from approximately March 2022 through mid-2025 has been resolved. Sagent Pharmaceuticals reported all marketed injectable presentations are available as of May 2025.

Localized stock-outs: Can still happen at individual pharmacies, especially during allergy season peaks. These are temporary and not part of a formal shortage.

What Was the Diphenhydramine Injectable Shortage?

The shortage that made national news wasn't the Benadryl you buy at the drugstore — it was injectable diphenhydramine, used in hospitals and emergency departments to treat severe allergic reactions, dystonia reactions, and as part of premedication protocols.

The American Society of Health-System Pharmacists (ASHP) and FDA tracked this shortage beginning around March 2022. The causes included manufacturing constraints, increased demand in clinical settings, and supply chain disruptions affecting pharmaceutical raw materials — issues that affected many injectable medications during the same period.

Hospital formulary committees responded by rationing injectable diphenhydramine and substituting alternative antihistamines (like hydroxyzine or promethazine) for appropriate cases. As of May 2025, the shortage was declared resolved.

Did the Injectable Shortage Affect OTC Benadryl?

No. The injectable shortage did not significantly affect the supply of over-the-counter diphenhydramine tablets, capsules, or liquids. These are made by different manufacturers using different formulations and supply chains. You may have noticed OTC Benadryl running low at your pharmacy during this period, but that was typically due to demand surges, not a manufacturing shortage of the oral product.

Why Does My Local Pharmacy Still Run Out Sometimes?

Even without a formal shortage, Benadryl and generic diphenhydramine can go out of stock at individual pharmacies for predictable reasons:

Allergy season demand spikes — tree and grass pollen peaks in spring (April–June); ragweed peaks in fall (August–October)

Cold and flu season — people stock up on OTC medicines including antihistamines

Reorder gaps — small or independent pharmacies may not reorder frequently enough to meet peak demand

Purchase limits — some retailers have placed purchase quantity limits on diphenhydramine due to concerns about misuse

What Should Patients Do If They Can't Find Benadryl?

The good news: solutions are usually simple.

Try generic diphenhydramine. Store-brand diphenhydramine at Walgreens, CVS, Target, or Walmart is the same active ingredient as Benadryl.

Check multiple pharmacies. Stock varies widely between locations.

Use medfinder. medfinder.com calls pharmacies near you and texts you which ones have your medication in stock.

Consider a second-generation antihistamine. Cetirizine, loratadine, or fexofenadine work for most allergy symptoms and are almost always in stock. See our Benadryl alternatives guide for details.

Diphenhydramine Pricing in 2026

Even though Benadryl is OTC and generally affordable, prices do vary:

Generic diphenhydramine 25 mg (30 count): $3–$9 retail

With GoodRx coupon: as low as $2.82

Brand-name Benadryl (24-48 count): $8–$15 depending on pack size

OTC product — most insurance plans do not cover it

Note: HSA and FSA accounts can be used to purchase OTC diphenhydramine, which can provide additional savings.