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Benadryl’s labels list no wheat, barley or rye ingredient, but no US Benadryl product is labeled gluten-free and Kenvue makes no gluten statement.
It depends on the product. Benadryl Allergy Ultratabs and Liqui-Gels list no starch at all on their current DailyMed labels, while Benadryl Allergy Plus Congestion lists three starch-type ingredients with no source named, and Children’s Benadryl Chewables list “sugar spheres” without saying what they’re made of. We found no gluten statement on any US Benadryl label or on benadryl.com.
Benadryl (diphenhydramine) lives in a lot of medicine cabinets, so we re-checked this page against every current Kenvue Benadryl label on DailyMed and Kenvue’s own site. An earlier version said some Benadryl products are labeled gluten-free. We couldn’t find a single US Benadryl label or Kenvue page that says so, so that claim is gone.
Check your medicine cabinet for gluten
Fifteen common over-the-counter medicines, what each label shows, what to check on the box, and one question to ask your pharmacist. Plus how to check any medicine yourself. You'll also be first to hear when the LGGF scanner app launches.
What Kenvue Says About Gluten in Benadryl
Nothing, as far as we can find. Kenvue makes Benadryl, and its Benadryl FAQ has no gluten question. None of the Benadryl labels we checked mentions gluten either. That doesn’t mean Benadryl contains gluten. It means the maker hasn’t made a public statement either way.
What’s in Benadryl, Product by Product
These lists come from the current Kenvue labels on DailyMed. None of them names wheat, barley, rye or malt.
- Benadryl Allergy Ultratabs: no starch. The current list is carnauba wax, croscarmellose sodium, a red dye, dibasic calcium phosphate, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80 and titanium dioxide (DailyMed label). An older list with starch, which this page used to show, is out of date.
- Benadryl Allergy Liqui-Gels (dye-free): no starch. Gelatin, glycerin, polyethylene glycol, purified water and sorbitol.
- Children’s Benadryl Allergy liquid: no starch in the cherry or the dye-free version. The dye-free liquid is sweetened with sorbitol solution and saccharin; the cherry one uses sucrose.
- Children’s Benadryl Chewables: list “sugar spheres” and dextrose. The label’s coded ingredient table has no entry for the sugar spheres, so it doesn’t say what they’re made of.
- Benadryl Allergy Plus Congestion: lists modified starch, pregelatinized starch and sodium starch glycolate, with no plant source named for any of them (DailyMed label).
What the FDA Says About Gluten in Medicines
There’s no gluten-free standard for medicines: the FDA’s gluten-free labeling rule only covers food. The FDA’s Medications and Gluten page and its draft guidance on gluten in drugs are the best guide to reading a Benadryl label:
- No added wheat gluten: the FDA knows of no oral drug sold in the US with wheat gluten or wheat flour added as an inactive ingredient.
- Derived starches don’t name their plant: plain wheat starch must be listed as “wheat starch,” but modified starch, pregelatinized starch and sodium starch glycolate, like the ones in Allergy Plus Congestion, never name their source. The FDA says the starch used is often corn or potato.
- A small worst case: in the very rare drug with a wheat-derived ingredient, the FDA’s high estimate is no more than 0.5 mg of gluten per dose.
- No “Contains: Wheat” rule for drugs: that line comes from a food allergen law that doesn’t apply to over-the-counter drugs, per the FDA’s allergen labeling guidance.
The FDA says a medicine whose ingredient list doesn’t mention wheat gluten or wheat flour shouldn’t contain gluten in an amount that would harm a typical (non-refractory) person with celiac disease. If you react to very small amounts, the Ultratabs and Liqui-Gels, with no starch on the label, leave the fewest open questions.
Cross-Contamination Risk
- No current Benadryl label names wheat, barley, rye or malt.
- Kenvue makes no gluten statement for Benadryl.
- Store-brand diphenhydramine has its own inactive ingredients. Compare its Drug Facts before you swap.
- Keep the box. Its NDC number finds the exact label on DailyMed.
How to Check the Benadryl You Bought
- Read the Drug Facts on your box: the “Inactive ingredients” line shows whether your version has any starch-type ingredient.
- Look it up on DailyMed: search the NDC number from the box at dailymed.nlm.nih.gov to find the exact label.
- Ask your pharmacist: the NIH’s digestive diseases institute tells people with celiac disease to ask a pharmacist about ingredients in over-the-counter medicines.
- Call Kenvue: if you need the chewables or Allergy Plus Congestion, the number under “Questions or comments?” on the Drug Facts label reaches the maker. Ask what the sugar spheres and starches are made from.
Frequently Asked Questions
Is Benadryl gluten-free?
No US Benadryl product is labeled gluten-free, and the FDA has no gluten-free standard for medicines. The current Benadryl labels on DailyMed list no wheat, barley or rye ingredient, and Benadryl Allergy Ultratabs and Liqui-Gels list no starch at all. Kenvue makes no public gluten statement for Benadryl.
Are Benadryl Allergy Ultratabs gluten-free?
The current Benadryl Allergy Ultratabs label lists no starch and no gluten-containing grain. Its inactive ingredients are carnauba wax, croscarmellose sodium, a red dye, dibasic calcium phosphate, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80 and titanium dioxide. The box isn’t labeled gluten-free.
Is Children’s Benadryl gluten-free?
Children’s Benadryl Allergy liquid, both the cherry and the dye-free version, lists no starch and no gluten-containing grain. Children’s Benadryl Chewables list “sugar spheres” whose makeup the label doesn’t state, so ask a pharmacist before choosing them. None of these is labeled gluten-free.
Are Benadryl Liqui-Gels gluten-free?
The dye-free Benadryl Allergy Liqui-Gels list only gelatin, glycerin, polyethylene glycol, purified water and sorbitol as inactive ingredients, with no starch and no gluten-containing grain. They aren’t labeled gluten-free.
Is store-brand diphenhydramine the same as Benadryl?
The active ingredient is the same, but each maker chooses its own inactive ingredients. Compare the inactive ingredients on the store-brand box, or look up its NDC number on DailyMed, before you switch.
Are any Benadryl products labeled gluten-free?
Not that we can find. An earlier version of this page said some were, but none of the current US Benadryl labels on DailyMed mentions gluten, and Kenvue’s Benadryl site doesn’t either. Medicines aren’t required to say anything about gluten in the US.