We checked Bayer Healthcare, the manufacturer of Aleve. Their FAQ states that gluten is not added to Aleve products, but because manufacturing facilities may also process items containing gluten, they cannot guarantee Aleve is 100% gluten free.
What the manufacturer told us
Here’s the statement published by Bayer:
Why this is complicated
Even though Bayer does not intentionally add gluten, shared manufacturing lines mean cross-contamination is possible. For most people, Aleve is likely safe to use, but for those with celiac disease or heightened sensitivity, it remains a point of caution.
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Search thousands of medications in AllerGuard. Compare brand vs. generics, view inactive ingredients, and find labeled gluten-free options fast.
A gluten free naproxen alternative
If you need a naproxen product with gluten-free labeling, consider Foster & Thrive Naproxen. Always double-check the packaging, as formulations can change.
Check other meds instantly
Aleve is just one example. AllerGuard helps you quickly check whether a medication lists gluten-containing ingredients, compare formulations by manufacturer, and find labeled gluten-free alternatives.
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Search by NDC code, barcode scan, or inactive ingredients. See inactive ingredients and risk flags at a glance.
Quick FAQ
Are generic naproxen tablets gluten-free?
It depends on the manufacturer. Some label their products gluten free, but inactive ingredients and facilities vary. Always confirm with your pharmacist.
Is Aleve safer than generics?
No — Bayer states Aleve is not guaranteed gluten free. Both branded and generic naproxen should be checked individually.
How can I be sure about my medication?
Search by NDC code in AllerGuard to see inactive ingredients, risk flags, and links to the official labeling.
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