Does losartan contain wheat or gluten as an excipient?

We cross-check each losartan 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. We checked 10 product labels for losartan and didn't find any ingredients on our gluten red-flag list. Worth noting — this isn't the same as a manufacturer attestation. Formulations can change without notice, and starch sources aren't always disclosed.

Can different manufacturers' generic versions of losartan 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 losartan 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.

Last verified May 17, 2026 · 10 product labels screened

Is losartan gluten-free?

Nothing on the labels looks like gluten. We checked 10 product labels for losartan and didn't find any ingredients on our gluten red-flag list. Worth noting — this isn't the same as a manufacturer attestation. Formulations can change without notice, and starch sources aren't always disclosed.

Drug context

About losartan

Losartan is an angiotensin receptor blocker used for high blood pressure, sold under brand names including Cozaar.

Why this matters

Different manufacturers, different ingredients

Generics of losartan 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 10 we checked

01

Redpharm Drug nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLET, FILM COATED [REDPHARM DRUG] · label dated May 13, 2026

Inactive ingredients CARNAUBA WAX · CELLULOSE, MICROCRYSTALLINE · CROSPOVIDONE · HYDROXYPROPYL CELLULOSE, LOW SUBSTITUTED · HYPROMELLOSES · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · STARCH, CORN · TITANIUM DIOXIDE
View source label →
02

Northwind Health Company, LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLET, FILM COATED [NORTHWIND HEALTH COMPANY, LLC] · label dated Mar 04, 2026

Inactive ingredients D&C YELLOW NO. 10 · FD&C BLUE NO. 2 · HYDROXYPROPYL CELLULOSE (1600000 WAMW) · HYPROMELLOSE 2910 (6 MPA.S) · LACTOSE MONOHYDRATE · LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · STARCH, CORN · TITANIUM DIOXIDE · WATER
View source label →
03

Northwind Health Company, LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLET, FILM COATED [NORTHWIND HEALTH COMPANY, LLC] · label dated Mar 04, 2026

Inactive ingredients D&C YELLOW NO. 10 · FD&C BLUE NO. 2 · HYDROXYPROPYL CELLULOSE (1600000 WAMW) · HYPROMELLOSE 2910 (6 MPA.S) · LACTOSE MONOHYDRATE · LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · STARCH, CORN · TITANIUM DIOXIDE · WATER
View source label →
04

Northwind Health Company, LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLET, FILM COATED [NORTHWIND HEALTH COMPANY, LLC] · label dated Mar 04, 2026

Inactive ingredients CARNAUBA WAX · CELLULOSE, MICROCRYSTALLINE · CROSPOVIDONE · HYDROXYPROPYL CELLULOSE, LOW SUBSTITUTED · HYPROMELLOSES · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · STARCH, CORN · TITANIUM DIOXIDE
View source label →
05

Northwind Health Company, LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLET, FILM COATED [NORTHWIND HEALTH COMPANY, LLC] · label dated Mar 04, 2026

Inactive ingredients D&C YELLOW NO. 10 · FD&C BLUE NO. 2 · HYDROXYPROPYL CELLULOSE (1600000 WAMW) · HYPROMELLOSE 2910 (6 MPA.S) · LACTOSE MONOHYDRATE · LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE, UNSPECIFIED · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · STARCH, CORN · TITANIUM DIOXIDE · WATER
View source label →
06

Solco Healthcare US, LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM AND HYDROCHLOROTHIAZIDE TABLET, FILM COATED [SOLCO HEALTHCARE US, LLC] · label dated Mar 02, 2026

Inactive ingredients D&C YELLOW NO. 10 · FD&C BLUE NO. 1 · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYVINYL ALCOHOL, UNSPECIFIED · SILICON DIOXIDE · SOYBEAN LECITHIN · STARCH, CORN · TALC · TITANIUM DIOXIDE
View source label →
07

Northwind Health Company, LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM 50 MG (LOSARTAN POTASSIUM) TABLET, FILM COATED [NORTHWIND HEALTH COM… · label dated Feb 26, 2026

Inactive ingredients CELLULOSE, MICROCRYSTALLINE · CROSCARMELLOSE SODIUM · HYPROMELLOSES · MAGNESIUM STEARATE · MANNITOL · POVIDONE · PROPYLENE GLYCOL · TALC · TITANIUM DIOXIDE
View source label →
08

Novadoz Pharmaceuticals LLC nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLET, FILM COATED [NOVADOZ PHARMACEUTICALS LLC] · label dated Feb 20, 2026

Inactive ingredients HYDROXYPROPYL CELLULOSE, UNSPECIFIED · HYPROMELLOSE 2910 (6 MPA.S) · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · STARCH, CORN · TITANIUM DIOXIDE
View source label →
09

Jubilant Cadista Pharmaceuticals Inc. nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM TABLETS, 25 MG (LOSARTAN POTASSIUM) TABLET LOSARTAN POTASSIUM TABLET… · label dated Feb 10, 2026

Inactive ingredients Aluminum Oxide · Cellulose, Microcrystalline · D&c Yellow No. 10 · Fd&c Blue No. 2 · Indigotindisulfonate Sodium · Lactose Monohydrate · Magnesium Stearate · Polyethylene Glycol, Unspecified · Polyvinyl Alcohol, Unspecified · Starch, Corn · Talc · Titanium Dioxide
View source label →
10

REMEDYREPACK INC. nothing flagged on the label

US label (DailyMed) · LOSARTAN POTASSIUM AND HYDROCHLOROTHIAZIDE TABLET, FILM COATED [REMEDYREPACK INC.] · label dated Apr 13, 2026

Inactive ingredients D&C YELLOW NO. 10 · FD&C BLUE NO. 1 · LACTOSE MONOHYDRATE · MAGNESIUM STEARATE · MICROCRYSTALLINE CELLULOSE · POLYETHYLENE GLYCOL, UNSPECIFIED · POLYVINYL ALCOHOL, UNSPECIFIED · SILICON DIOXIDE · 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 →

Keep checking

Other drugs people look up

Important. This page is informational. Drug labels can change without notice; a manufacturer attestation is point-in-time, not a warranty. If you have celiac disease and your pharmacy switches manufacturers, re-screen the new label before taking the dispensed product. For a definitive answer, call the manufacturer's medical-information line with the NDC code from your prescription bottle.