Does gabapentin contain wheat or gluten as an excipient?

We cross-check each gabapentin 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. At least one manufacturer has formally attested their formulation contains no gluten. Of 11 labels we checked, 1 are confirmed by the maker and 10 show nothing flagged. Confirm the brand or generic on your bottle matches one of the attesting manufacturers below.

Can different manufacturers' generic versions of gabapentin 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 gabapentin 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 August 19, 2026 · 11 product labels screened

Is gabapentin gluten-free?

By Ned Walsch

Founder and maintainer of Gluten Screen

Updated October 13, 2026

Not clinically reviewed — verify with your pharmacist

Confirmed gluten-free by at least one manufacturer. At least one manufacturer has formally attested their formulation contains no gluten. Of 11 labels we checked, 1 are confirmed by the maker and 10 show nothing flagged. Confirm the brand or generic on your bottle matches one of the attesting manufacturers below.

Drug context

About gabapentin

Gabapentin is an anticonvulsant used for nerve pain and seizures, sold under brand names including Neurontin, Gralise.

Why this matters

Different manufacturers, different ingredients

Generics of gabapentin 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

Apotex manufacturer-attested gluten-free

Plogsted list · Gabapentin (Apotex, Greenstone) · label dated 2017-04-28

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

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

US label (DailyMed) · GABAPENTIN CAPSULE [ST. MARY'S MEDICAL PARK PHARMACY] · label dated Oct 05, 2026

Inactive ingredients ALCOHOL · AMMONIA · BUTYL ALCOHOL · FERRIC OXIDE RED · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN · ISOPROPYL ALCOHOL · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
03

Redpharm Drug nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [REDPHARM DRUG] · label dated Oct 05, 2026

Inactive ingredients FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · SHELLAC · SODIUM LAURYL SULFATE · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
04

Asclemed USA, Inc. nothing flagged on the label

US label (DailyMed) · GABAPENTIN TABLET [ASCLEMED USA, INC.] · label dated Sep 24, 2026

Inactive ingredients CROSPOVIDONE · GLYCERYL DIBEHENATE · HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MANNITOL · SILICON DIOXIDE · TALC
View source label →
05

AX Pharmaceutical Corp nothing flagged on the label

US label (DailyMed) · GABAPENTIN POWDER [AX PHARMACEUTICAL CORP] · label dated Sep 21, 2026
View source label →
06

Advanced Rx of Tennessee, LLC nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [ADVANCED RX OF TENNESSEE, LLC] · label dated Sep 14, 2026

Inactive ingredients AMMONIA · BUTYL ALCOHOL · FERROSOFERRIC OXIDE · GELATIN · ISOPROPYL ALCOHOL · MANNITOL · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SODIUM LAURYL SULFATE · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
07

Clinical Solutions Wholesale, LLC nothing flagged on the label

US label (DailyMed) · GABAPENTIN TABLET [CLINICAL SOLUTIONS WHOLESALE, LLC] · label dated Sep 10, 2026

Inactive ingredients COPOVIDONE K25-31 · HYPROMELLOSE, UNSPECIFIED · MAGNESIUM STEARATE · POLOXAMER 407 · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYSORBATE 80 · STARCH, CORN · TALC · TITANIUM DIOXIDE · WATER
View source label →
08

PHOENIX RX LLC nothing flagged on the label

US label (DailyMed) · GABAPENTIN TABLET [PHOENIX RX LLC] · label dated Sep 04, 2026

Inactive ingredients CROSPOVIDONE · GLYCERYL DIBEHENATE · HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MANNITOL · SILICON DIOXIDE · TALC
View source label →
09

American Health Packaging nothing flagged on the label

US label (DailyMed) · GABAPENTIN TABLET, FILM COATED [AMERICAN HEALTH PACKAGING] · label dated Oct 05, 2026

Inactive ingredients COPOVIDONE K25-31 · LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MANNITOL · POLOXAMER 407 · POVIDONE, UNSPECIFIED · TALC
View source label →
10

REMEDYREPACK INC. nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [REMEDYREPACK INC.] · label dated Sep 29, 2026

Inactive ingredients ANHYDROUS LACTOSE · GELATIN, UNSPECIFIED · SODIUM LAURYL SULFATE · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
11

PD-Rx Pharmaceuticals, Inc. nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [PD-RX PHARMACEUTICALS, INC.] · label dated Sep 25, 2026

Inactive ingredients ANHYDROUS LACTOSE · FERRIC OXIDE YELLOW · GELATIN, UNSPECIFIED · SODIUM LAURYL SULFATE · STARCH, CORN · TALC · TITANIUM DIOXIDE
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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