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 May 17, 2026 · 11 product labels screened

Is gabapentin gluten-free?

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

Zhejiang Yongtai Pharmaceutical Co., Ltd nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [ZHEJIANG YONGTAI PHARMACEUTICAL CO., LTD] · label dated Jul 01, 2026

Inactive ingredients FD&C BLUE NO. 1 · FD&C RED NO. 3 · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN · MANNITOL · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
03

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

US label (DailyMed) · GABAPENTIN CAPSULE [ST. MARY'S MEDICAL PARK PHARMACY] · label dated Jun 30, 2026

Inactive ingredients ALCOHOL · AMMONIA · BUTYL ALCOHOL · FERROSOFERRIC OXIDE · GELATIN · ISOPROPYL ALCOHOL · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
04

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

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

Inactive ingredients AMMONIA · BUTYL ALCOHOL · DEHYDRATED ALCOHOL · FD&C BLUE NO. 1 ALUMINUM LAKE · FERRIC OXIDE YELLOW · GELATIN · ISOPROPYL ALCOHOL · MAGNESIUM STEARATE · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TITANIUM DIOXIDE
View source label →
05

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

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

Inactive ingredients COPOVIDONE K25-31 · CROSPOVIDONE, UNSPECIFIED · HYDROXYPROPYL CELLULOSE, UNSPECIFIED · HYPROMELLOSES · MAGNESIUM STEARATE · MANNITOL · POLOXAMER 407 · POLYETHYLENE GLYCOL, UNSPECIFIED · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
06

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

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

Inactive ingredients COPOVIDONE K25-31 · CROSPOVIDONE · HYDROXYPROPYL CELLULOSE, UNSPECIFIED · HYPROMELLOSES · MAGNESIUM STEARATE · MANNITOL · POLOXAMER 407 · POLYETHYLENE GLYCOL, UNSPECIFIED · SILICON DIOXIDE · TALC · TITANIUM DIOXIDE
View source label →
07

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

US label (DailyMed) · GABAPENTIN CAPSULE [ST. MARY'S MEDICAL PARK PHARMACY] · label dated Jun 26, 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 →
08

Unit Dose Solutions, Inc. nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [UNIT DOSE SOLUTIONS, INC.] · label dated Jun 24, 2026

Inactive ingredients ANHYDROUS LACTOSE · FERRIC OXIDE YELLOW · GELATIN, UNSPECIFIED · SODIUM LAURYL SULFATE · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
09

Unit Dose Solutions, Inc. nothing flagged on the label

US label (DailyMed) · GABAPENTIN TABLET [UNIT DOSE SOLUTIONS, INC.] · label dated Jun 24, 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 →
10

Ascend Laboratories, LLC nothing flagged on the label

US label (DailyMed) · GABAPENTIN CAPSULE [ASCEND LABORATORIES, LLC] · label dated Jun 24, 2026

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

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

US label (DailyMed) · GABAPENTIN TABLET [ST. MARY'S MEDICAL PARK PHARMACY] · label dated Jun 23, 2026

Inactive ingredients CROSPOVIDONE · GLYCERYL DIBEHENATE · HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MANNITOL · SILICON DIOXIDE · TALC
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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