Cephalexin 250 mg

CAPSULEORALAidarex Pharmaceuticals LLCNDC: 53217-299Updated: Mar 2026

Active Ingredient

CEPHALEXIN — 250 mg

Inactive Ingredients (Fillers)

⚠️ 7 ingredients flagged as common allergens

Carboxymethylcellulose Sodium

⚠️ Yes — CMC

Thickener/Stabilizer

FD&C Blue No. 1

⚠️ Yes — Dye

Colorant

FD&C Blue No. 2

⚠️ Yes — Dye

Colorant

FD&C Red No. 40

⚠️ Yes — Dye

Colorant

Gelatin

⚠️ Yes — Animal

Capsule Shell

Propylene Glycol

⚠️ Yes — Propylene Glycol

Solvent/Humectant

Sodium Lauryl Sulfate

⚠️ Yes — Surfactant

Wetting Agent

Aluminum Oxide

Abrasive/Adsorbent

D&C Yellow No. 10

Colorant

Ferric Oxide Yellow

Colorant

Ferrosoferric Oxide

Colorant

Magnesium Stearate

Lubricant

Silicon Dioxide

Glidant

Sodium Starch Glycolate Type A

Disintegrant

Titanium Dioxide

Colorant/Opacifier

Ingredient	Purpose	Common Allergen?	Description
Carboxymethylcellulose Sodium	Thickener/Stabilizer	⚠️ Yes — CMC	A cellulose derivative used as a thickener. Rare CMC reactions reported in medical literature.
FD&C Blue No. 1	Colorant	⚠️ Yes — Dye	A synthetic blue dye. Less commonly allergenic than other dyes but reactions are documented.
FD&C Blue No. 2	Colorant	⚠️ Yes — Dye	A synthetic dye that may cause reactions in dye-sensitive individuals.
FD&C Red No. 40	Colorant	⚠️ Yes — Dye	A widely used artificial red dye. Among the most common dye allergens.
Gelatin	Capsule Shell	⚠️ Yes — Animal	Derived from animal collagen. Used in capsule shells. Not suitable for vegetarians/vegans or those with specific animal protein sensitivities.
Propylene Glycol	Solvent/Humectant	⚠️ Yes — Propylene Glycol	An organic compound used as a solvent and humectant. Can cause contact dermatitis in sensitive individuals.
Sodium Lauryl Sulfate	Wetting Agent	⚠️ Yes — Surfactant	A surfactant used to improve drug dissolution. Can cause skin irritation in some individuals.
Aluminum Oxide	Abrasive/Adsorbent	No	Alumina. Used as an adsorbent, abrasive, and processing aid in pharmaceutical manufacturing.
D&C Yellow No. 10	Colorant	No	A synthetic yellow dye (quinoline yellow) used in medications and cosmetics. May cause reactions in individuals with dye sensitivities.
Ferric Oxide Yellow	Colorant	No	Yellow iron oxide pigment used in tablet coatings and capsule shells. A mineral-based colorant.
Ferrosoferric Oxide	Colorant	No	Black iron oxide used as a pigment in tablet coatings and capsule shells. Derived from iron, not from food allergen sources.
Magnesium Stearate	Lubricant	No	A lubricant that prevents ingredients from sticking to manufacturing equipment.
Silicon Dioxide	Glidant	No	A mineral (silica) used to improve powder flow during tablet manufacturing. Also called colloidal silicon dioxide.
Sodium Starch Glycolate Type A	Disintegrant	No	A modified starch (typically potato-derived) that swells rapidly in water, helping tablets break apart for faster drug release.
Titanium Dioxide	Colorant/Opacifier	No	A white pigment used for coating opacity. Under regulatory review in some countries.

Exclusion Groups

This medication contains ingredients flagged in the following groups. Patients with these sensitivities should consult their prescriber.

🌾Gluten 🔴Alpha-Gal Syndrome 🎨Dyes & Colorants 🌱Not Vegan ☪️Halal Concern ✡️Kosher Concern 🥦Not Vegetarian

Dietary & Safety Information

Cross-Contamination Risk (source-dependent)

1 ingredient may have cross-contamination risk with gluten (source-dependent):

Sodium Starch Glycolate Type A — May contain (source-dependent)

Alpha-Gal Syndrome Risk

2 ingredients may contain mammalian-derived components:

Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)
Gelatin(Yes — Mammalian-derived – alpha-gal risk (verify processing/source).)

Allergen-Free Alternatives

Other versions of Cephalexin that avoid allergens found in this formulation.

ADVANCED RX PHARMACY OF TENNESSEE, LLC — 500 mg

Dye-freeSurfactant-freeAnimal-freePropylene Glycol-freeCMC-free

Compare

STAT RX USA LLC — 250 mg

Dye-freeSurfactant-freeAnimal-freePropylene Glycol-freeCMC-free

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American Antibiotics, Inc — 250 mg

Dye-freeSurfactant-freePropylene Glycol-freeCMC-free

Compare

AvKARE — 250 mg

Dye-freeSurfactant-freePropylene Glycol-freeCMC-free

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Belcher Pharmaceuticals, LLC — 250 mg

Dye-freeSurfactant-freePropylene Glycol-freeCMC-free

Compare

AllergenMaps

Ingredient

Purpose

Common Allergen?

Carboxymethylcellulose Sodium

Thickener/Stabilizer

⚠️ Yes — CMC

FD&C Blue No. 1

Colorant

⚠️ Yes — Dye

FD&C Blue No. 2

Colorant

⚠️ Yes — Dye

FD&C Red No. 40

Colorant

⚠️ Yes — Dye

Gelatin

Capsule Shell

⚠️ Yes — Animal

Propylene Glycol

Solvent/Humectant

⚠️ Yes — Propylene Glycol

Sodium Lauryl Sulfate

Wetting Agent

⚠️ Yes — Surfactant

Aluminum Oxide

Abrasive/Adsorbent

D&C Yellow No. 10

Colorant

Ferric Oxide Yellow

Colorant

Ferrosoferric Oxide

Colorant

Magnesium Stearate

Lubricant

Silicon Dioxide

Glidant

Sodium Starch Glycolate Type A

Disintegrant

Titanium Dioxide

Colorant/Opacifier

Dietary & Safety Information

Cross-Contamination Risk (source-dependent)

1 ingredient may have cross-contamination risk with gluten (source-dependent):

Sodium Starch Glycolate Type A — May contain (source-dependent)

Alpha-Gal Syndrome Risk

2 ingredients may contain mammalian-derived components:

Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)
Gelatin(Yes — Mammalian-derived – alpha-gal risk (verify processing/source).)

Allergen-Free Alternatives

Other versions of Cephalexin that avoid allergens found in this formulation.