Does furosemide contain wheat or gluten as an excipient?

We cross-check each furosemide 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 12 labels we checked, 2 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 furosemide 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 furosemide 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 · 12 product labels screened

Is furosemide gluten-free?

By Ned Walsch

Founder and maintainer of Gluten Screen

Updated August 20, 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 12 labels we checked, 2 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 furosemide

Furosemide is a loop diuretic used for heart failure and edema, sold under brand names including Lasix.

Why this matters

Different manufacturers, different ingredients

Generics of furosemide 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 12 we checked

01

Watson-doesn't test but uses corn starch manufacturer-attested gluten-free

Plogsted list · Furosemide (Watson-doesn't test but uses corn starch) · label dated 2017-04-28

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

Ivax manufacturer-attested gluten-free

Plogsted list · Furosemide (Ivax, Sandoz) · label dated 2017-04-28

Listed gluten-free in Plogsted Alpha List (2017-04-28)
View source label →
03

Medical Purchasing Solutions, LLC nothing flagged on the label

US label (DailyMed) · FUROSEMIDE INJECTION, SOLUTION [MEDICAL PURCHASING SOLUTIONS, LLC] · label dated Aug 13, 2026

Inactive ingredients HYDROCHLORIC ACID · SODIUM CHLORIDE · SODIUM HYDROXIDE · WATER
View source label →
04

Redpharm Drug nothing flagged on the label

US label (DailyMed) · FUROSEMIDE TABLET [REDPHARM DRUG] · label dated Aug 13, 2026

Inactive ingredients LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · SILICON DIOXIDE · STARCH, CORN · TALC
View source label →
05

scPharmaceuticals Inc., a wholly owned subsidiary of MannKind Corporation nothing flagged on the label

US label (DailyMed) · FUROSCIX (FUROSEMIDE) INJECTION FUROSCIX (FUROSEMIDE INJECTION 80 MG/ 10 ML) INJECTION … · label dated Aug 03, 2026

Inactive ingredients BENZYL ALCOHOL · HYDROCHLORIC ACID · SODIUM HYDROXIDE · TROMETHAMINE · WATER
View source label →
06

Civica, Inc. nothing flagged on the label

US label (DailyMed) · FUROSEMIDE INJECTION [CIVICA, INC.] · label dated Jul 30, 2026

Inactive ingredients HYDROCHLORIC ACID · SODIUM CHLORIDE · SODIUM HYDROXIDE · WATER
View source label →
07

Covetrus North America nothing flagged on the label

US label (DailyMed) · FUROSEMIDE TABLET [COVETRUS NORTH AMERICA] · label dated Jul 24, 2026
View source label →
08

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

US label (DailyMed) · FUROSEMIDE TABLET [ST. MARY'S MEDICAL PARK PHARMACY] · label dated Jul 01, 2026

Inactive ingredients LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · SILICON DIOXIDE · STARCH, CORN · TALC
View source label →
09

Atlantic Biologicals Corp. nothing flagged on the label

US label (DailyMed) · FUROSEMIDE SOLUTION [ATLANTIC BIOLOGICALS CORP.] · label dated Jun 29, 2026

Inactive ingredients D&C YELLOW NO. 10 · FD&C YELLOW NO. 6 · POTASSIUM CARBONATE · PROPYLENE GLYCOL · SACCHARIN SODIUM ANHYDROUS · SORBITOL · WATER
View source label →
10

HF Acquisition Co LLC, DBA HealthFirst nothing flagged on the label

US label (DailyMed) · FUROSEMIDE INJECTION, SOLUTION [HF ACQUISITION CO LLC, DBA HEALTHFIRST] · label dated Jun 25, 2026

Inactive ingredients HYDROCHLORIC ACID · SODIUM CHLORIDE · SODIUM HYDROXIDE · WATER
View source label →
11

Unit Dose Solutions, Inc. nothing flagged on the label

US label (DailyMed) · FUROSEMIDE (FUROSEMIDE) TABLET [UNIT DOSE SOLUTIONS, INC.] · label dated Jun 23, 2026

Inactive ingredients ANHYDROUS LACTOSE · CELLULOSE, MICROCRYSTALLINE · MAGNESIUM STEARATE · SILICON DIOXIDE · SODIUM STARCH GLYCOLATE TYPE A POTATO · STARCH, PREGELATINIZED CORN
View source label →
12

Granulation Technology, Inc. nothing flagged on the label

US label (DailyMed) · FUROSEMIDE TABLET [GRANULATION TECHNOLOGY, INC.] · label dated Jun 18, 2026

Inactive ingredients LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · STARCH, CORN
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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