Does naproxen contain wheat or gluten as an excipient?

We cross-check each naproxen product label against four data sources: DailyMed (FDA Structured Product Labels), the European Medicines Agency centrally-authorised medicines database, the Plogsted curated gluten-free drug list, and the 2024 Mangione et al. pediatric pharmacy NDC analysis. Inactive ingredients are scanned against a 146-entry red-flag dictionary covering wheat, barley, rye, malt, source-ambiguous starches, and FDA gluten-free attestation phrases. Mostly yes — but worth a quick call to the manufacturer for some generics. Of 11 product labels we checked, 9 are clean, 1 are confirmed gluten-free by the maker, and 1 contain an inactive ingredient (typically a source-ambiguous starch) whose botanical origin isn't fully disclosed. None contained confirmed gluten.

Can different manufacturers' generic versions of naproxen have different gluten status?

Yes. Generics in the United States must use the same active ingredient as the brand, but they are not required to use the same inactive ingredients. Two generics of naproxen from different manufacturers can use entirely different starch sources, binders, and fillers. A pharmacy may also switch which manufacturer it dispenses between fills without notifying you. Each manufacturer-specific entry below corresponds to a separately-filed product label.

DailyMed checked live · reference data updated May 17, 2026 · 11 product labels screened

Is naproxen gluten-free?

Looks mostly clean — worth verifying with the maker. Mostly yes — but worth a quick call to the manufacturer for some generics. Of 11 product labels we checked, 9 are clean, 1 are confirmed gluten-free by the maker, and 1 contain an inactive ingredient (typically a source-ambiguous starch) whose botanical origin isn't fully disclosed. None contained confirmed gluten.

Drug context

About naproxen

Naproxen is a longer-acting NSAID for pain and inflammation, sold under brand names including Aleve, Naprosyn.

Why this matters

Different manufacturers, different ingredients

Generics of naproxen use the same active ingredient, but they aren't required to use the same inactive ingredients. Your pharmacy may switch which manufacturer they dispense between fills, sometimes without telling you. The list below shows each manufacturer's product label as a separate entry, because that's the granularity that actually matters when you're celiac.

The labels

The 11 we checked

01

Novapharm manufacturer-attested gluten-free

Plogsted list · Naproxen (Novapharm) · label dated 2017-04-28

Listed gluten-free in Plogsted Alpha List (2017-04-28)
View source label →
02

Bayer HealthCare LLC. worth a call to confirm

US label (DailyMed) · ALEVE CAPLETS SOFT GRIP ARTHRITIS (NAPROXEN SODIUM) TABLET ALEVE CAPLETS EASY OPEN ARTH… · label dated Jun 29, 2026

Worth a call to the maker: SODIUM CARBOXYMETHYL STARCH

Inactive ingredients FD&C BLUE NO. 2 · HYPROMELLOSES · MAGNESIUM STEARATE · MANNITOL · POLYETHYLENE GLYCOL, UNSPECIFIED · SILICON DIOXIDE · SODIUM CARBOXYMETHYL STARCH · STEARIC ACID · TITANIUM DIOXIDE
View source label →
03

Reckitt Benckiser LLC nothing flagged on the label

US label (DailyMed) · MUCINEX DS 12HR COLD, FEVER AND SINUS (NAPROXEN SODIUM, PSEUDOEPHEDRINE HYDROCHLORIDE) … · label dated Jul 01, 2026

Inactive ingredients HYPROMELLOSE, UNSPECIFIED · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYSORBATE 80 · POVIDONE · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
04

Unit Dose Solutions, Inc. nothing flagged on the label

US label (DailyMed) · NAPROXEN TABLET [UNIT DOSE SOLUTIONS, INC.] · label dated Jun 30, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FERRIC OXIDE RED · FERRIC OXIDE YELLOW · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POVIDONE, UNSPECIFIED
View source label →
05

St. Mary's Medical Park Pharmacy nothing flagged on the label

US label (DailyMed) · NAPROXEN TABLET [ST. MARY'S MEDICAL PARK PHARMACY] · label dated Jun 29, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FERRIC OXIDE YELLOW · MAGNESIUM STEARATE · POVIDONE, UNSPECIFIED
View source label →
06

Lidl US LLC nothing flagged on the label

US label (DailyMed) · NAPROXEN SODIUM TABLET, FILM COATED [LIDL US LLC] · label dated Jun 23, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FD&C BLUE NO. 2 ALUMINUM LAKE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYVINYL ALCOHOL, UNSPECIFIED · POVIDONE, UNSPECIFIED · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
07

Rite Aid Corporation nothing flagged on the label

US label (DailyMed) · NAPROXEN SODIUM TABLET, FILM COATED [RITE AID CORPORATION] · label dated Jun 22, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FD&C BLUE NO. 2 ALUMINUM LAKE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYVINYL ALCOHOL, UNSPECIFIED · POVIDONE, UNSPECIFIED · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
08

L.N.K. International, Inc. nothing flagged on the label

US label (DailyMed) · NAPROXEN HEADACHE PAIN (NAPROXEN SODIUM) TABLET, FILM COATED [L.N.K. INTERNATIONAL, INC.] · label dated Jun 22, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FD&C BLUE NO. 2--ALUMINUM LAKE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYVINYL ALCOHOL, UNSPECIFIED · POVIDONE, UNSPECIFIED · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
09

Coupler LLC nothing flagged on the label

US label (DailyMed) · NAPROXEN TABLET [COUPLER LLC] · label dated Jun 18, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FERRIC OXIDE RED · FERRIC OXIDE YELLOW · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POVIDONE, UNSPECIFIED
View source label →
10

VESPYR BRANDS LLC nothing flagged on the label

US label (DailyMed) · NAPROXEN SODIUM AND PSEUDOEPHEDRINE HYDROCHLORIDE COLD AND SINUS (NAPROXEN SODIUM AND P… · label dated Jun 17, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FERRIC OXIDE YELLOW · HYPROMELLOSE 2208 (15000 MPA.S) · HYPROMELLOSE 2910 (6 MPA.S) · HYPROMELLOSE, UNSPECIFIED · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE 101 · MICROCRYSTALLINE CELLULOSE 102 · POLYETHYLENE GLYCOL 4000 · POVIDONE K30 · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
11

Coupler LLC nothing flagged on the label

US label (DailyMed) · NAPROXEN TABLET [COUPLER LLC] · label dated Jun 11, 2026

Inactive ingredients CROSCARMELLOSE SODIUM · FERRIC OXIDE RED · FERRIC OXIDE YELLOW · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POVIDONE, UNSPECIFIED
View source label →

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Background

What “gluten in a medication” actually means

Gluten enters drugs through their excipients — the inactive ingredients used to bind, coat, fill, or stabilize the dose. The main concern is wheat starch as a filler. Source-ambiguous starches (plain “starch”, pregelatinized starch, sodium starch glycolate, modified starch) get flagged for verification because their botanical origin isn't always disclosed on the label.

The 2024 Mangione et al. pediatric NDC analysis (689 NDCs across the top 100 pediatric medications) found 1.5% contained gluten outright; another 25.7% couldn't be confirmed either way. Liquid and oral-suspension formulations carry disproportionate risk because wheat starch is a common thickener. Full methodology →

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