Doxycycline Hyclate (Doxycycline hyclate) 100 mg

TABLET, COATEDORALMajor PharmaceuticalsNDC: 0904-0430Updated: Mar 2026

Active Ingredient

DOXYCYCLINE HYCLATE — 100 mg

Inactive Ingredients (Fillers)

⚠️ 3 ingredients flagged as common allergens

FD&C Blue No. 2

⚠️ Yes — Dye

Colorant

FD&C Yellow No. 6

⚠️ Yes — Dye

Colorant

Sodium Benzoate

⚠️ Yes — Sodium Benzoate

Preservative

Croscarmellose Sodium

Disintegrant

Docusate Sodium

Wetting Agent/Surfactant

Hypromellose

Coating

Magnesium Stearate

Lubricant

Microcrystalline Cellulose

Filler/Binder

Silicon Dioxide

Glidant

Starch, Corn

Disintegrant/Filler

Titanium Dioxide

Colorant/Opacifier

Vitamin E Polyethylene Glycol Succinate?

Solubilizer/Emulsifier

Ingredient	Purpose	Common Allergen?	Description
FD&C Blue No. 2	Colorant	⚠️ Yes — Dye	A synthetic dye that 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.
Sodium Benzoate	Preservative	⚠️ Yes — Sodium Benzoate	A food preservative. Can cause urticaria and exacerbate asthma in sensitive individuals.
Croscarmellose Sodium	Disintegrant	No	A chemically modified cellulose derivative that helps tablets dissolve quickly.
Docusate Sodium	Wetting Agent/Surfactant	No	A surfactant used as a wetting agent in tablet manufacturing and also as a stool softener (active ingredient in some laxatives).
Hypromellose	Coating	No	A semisynthetic polymer used for tablet coating. Derived from cellulose.
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.
Silicon Dioxide	Glidant	No	A mineral (silica) used to improve powder flow during tablet manufacturing. Also called colloidal silicon dioxide.
Starch, Corn	Disintegrant/Filler	No	Corn-derived starch used as a filler, binder, or disintegrant. May affect individuals with corn allergy or sensitivity.
Titanium Dioxide	Colorant/Opacifier	No	A white pigment used for coating opacity. Under regulatory review in some countries.
Vitamin E Polyethylene Glycol Succinate?	Solubilizer/Emulsifier	No	A water-soluble form of vitamin E (also called TPGS) used to improve the absorption of poorly soluble drugs. Contains a PEG component.

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):

Starch, Corn — May contain (source-dependent)

Alpha-Gal Syndrome Risk

1 ingredient may contain mammalian-derived components:

Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)

AllergenMaps

Ingredient

Purpose

Common Allergen?

FD&C Blue No. 2

Colorant

⚠️ Yes — Dye

FD&C Yellow No. 6

Colorant

⚠️ Yes — Dye

Sodium Benzoate

Preservative

⚠️ Yes — Sodium Benzoate

Croscarmellose Sodium

Disintegrant

Docusate Sodium

Wetting Agent/Surfactant

Hypromellose

Coating

Magnesium Stearate

Lubricant

Microcrystalline Cellulose

Filler/Binder

Silicon Dioxide

Glidant

Starch, Corn

Disintegrant/Filler

Titanium Dioxide

Colorant/Opacifier

Vitamin E Polyethylene Glycol Succinate?

Solubilizer/Emulsifier

Dietary & Safety Information

Cross-Contamination Risk (source-dependent)

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

Starch, Corn — May contain (source-dependent)

Alpha-Gal Syndrome Risk

1 ingredient may contain mammalian-derived components:

Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)