Cephalexin (Cephalexin) 500 mg

CAPSULEORALAsclemed USA, Inc.NDC: 76420-736Updated: Mar 2026

Active Ingredient

CEPHALEXIN — 500 mg

Inactive Ingredients (Fillers)

⚠️ 5 ingredients flagged as common allergens

FD&C Blue No. 1

⚠️ Yes — Dye

Colorant

FD&C Green No. 3

⚠️ Yes — Dye

Colorant

FD&C Yellow No. 6

⚠️ Yes — Dye

Colorant

Gelatin

⚠️ Yes — Animal

Capsule Shell

Propylene Glycol

⚠️ Yes — Propylene Glycol

Solvent/Humectant

D&C Yellow No. 10

Colorant

Ferrosoferric Oxide

Colorant

Magnesium Stearate

Lubricant

Microcrystalline Cellulose

Filler/Binder

Potassium Hydroxide

pH Adjuster

Shellac

Coating Agent

Titanium Dioxide

Colorant/Opacifier

Ingredient	Purpose	Common Allergen?	Description
FD&C Blue No. 1	Colorant	⚠️ Yes — Dye	A synthetic blue dye. Less commonly allergenic than other dyes but reactions are documented.
FD&C Green No. 3	Colorant	⚠️ Yes — Dye	A synthetic green dye (Fast Green FCF) used in medications. May cause reactions in dye-sensitive individuals.
FD&C Yellow No. 6	Colorant	⚠️ Yes — Dye	An artificial colorant (also called Sunset Yellow). May cause reactions in people sensitive to artificial dyes.
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.
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.
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.
Microcrystalline Cellulose	Filler/Binder	No	Refined wood pulp used as a filler and binder. Generally inert and well-tolerated.
Potassium Hydroxide	pH Adjuster	No	A strong alkali used to adjust pH in pharmaceutical formulations. Present only in trace amounts in the final product.
Shellac	Coating Agent	No	A natural resin secreted by the lac insect. Used as an enteric coating for tablets and as a glazing agent. Derived from insects — relevant for vegan, vegetarian, and some religious dietary considerations.
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.

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

Dietary & Safety Information

Alpha-Gal Syndrome Risk

2 ingredients may contain mammalian-derived components:

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

AllergenMaps

Ingredient

Purpose

Common Allergen?

FD&C Blue No. 1

Colorant

⚠️ Yes — Dye

FD&C Green No. 3

Colorant

⚠️ Yes — Dye

FD&C Yellow No. 6

Colorant

⚠️ Yes — Dye

Gelatin

Capsule Shell

⚠️ Yes — Animal

Propylene Glycol

Solvent/Humectant

⚠️ Yes — Propylene Glycol

D&C Yellow No. 10

Colorant

Ferrosoferric Oxide

Colorant

Magnesium Stearate

Lubricant

Microcrystalline Cellulose

Filler/Binder

Potassium Hydroxide

pH Adjuster

Shellac

Coating Agent

Titanium Dioxide

Colorant/Opacifier