Diphenhydramine HCl (Diphenhydramine HCl) 25 mg

CAPSULEORALAARNA USA INC.NDC: 82568-0004Updated: Mar 2026

Active Ingredient

DIPHENHYDRAMINE HYDROCHLORIDE — 25 mg

Inactive Ingredients (Fillers)

⚠️ 2 ingredients flagged as common allergens

Gelatin

⚠️ Yes — Animal

Capsule Shell

Derived from animal collagen. Used in capsule shells. Not suitable for vegetarians/vegans or those with specific animal protein sensitivities.

Lactose Monohydrate

⚠️ Yes — Dairy

Filler/Binder

A sugar derived from milk. Common allergen for lactose-intolerant individuals and those with dairy allergies.

Magnesium Stearate

Lubricant

Microcrystalline Cellulose

Filler/Binder

Silicon Dioxide

Glidant

Ingredient	Purpose	Common Allergen?	Description
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.
Lactose Monohydrate	Filler/Binder	⚠️ Yes — Dairy	A sugar derived from milk. Common allergen for lactose-intolerant individuals and those with dairy allergies.
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.

Exclusion Groups

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

🔴Alpha-Gal Syndrome 🥛Milk / Lactose 🌱Not Vegan ☪️Halal Concern ✡️Kosher Concern 🥦Not Vegetarian

Dietary & Safety Information

Alpha-Gal Syndrome Risk

3 ingredients may contain mammalian-derived components:

Gelatin(Yes — Mammalian-derived – alpha-gal risk (verify processing/source).)
Lactose Monohydrate(Possible — May be mammalian-derived; some alpha-gal patients react (verify source).)
Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)

Allergen-Free Alternatives

Other versions of Diphenhydramine HCl that avoid allergens found in this formulation.

A-S Medication Solutions — 25 mg

Animal-freeDairy-free

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Advanced Rx LLC — 25 mg

Animal-freeDairy-free

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Amerisource Bergen — 12.5 mg

Animal-freeDairy-free

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Amerisource Bergen — 25 mg

Animal-freeDairy-free

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AMERISOURCE BERGEN — 12.5 mg

Animal-freeDairy-free

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AllergenMaps

Ingredient

Purpose

Common Allergen?

Gelatin

Capsule Shell

⚠️ Yes — Animal

Lactose Monohydrate

Filler/Binder

⚠️ Yes — Dairy

Magnesium Stearate

Lubricant

Microcrystalline Cellulose

Filler/Binder

Silicon Dioxide

Glidant

Dietary & Safety Information

Alpha-Gal Syndrome Risk

3 ingredients may contain mammalian-derived components:

Gelatin(Yes — Mammalian-derived – alpha-gal risk (verify processing/source).)
Lactose Monohydrate(Possible — May be mammalian-derived; some alpha-gal patients react (verify source).)
Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)