Mediclarum
Medicine guide

Allergy Relief

25 mg · Tablet, Coated

  • Available without prescription
  • Histamine-1 Receptor Antagonist
Made by
Chain Drug Marketing Association

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

At a glance

Quoted from the official label · 2024-10-11

What it is

Antihistamine

Used for
  • Runny nose sneezing
How to take it

Adults and children 12 years of age and over 25 mg to 50 mg (1 to 2 tablets)

do not exceed 6 doses in 24 hours

Full directions ↓
Do not take it if

With any other product containing diphenhydramine, even one used on skin

All warnings ↓
Good to know
  • Sold without a prescription
  • FDA enforcement reports list no ongoing recall, and none from the last two years, for this product code · checked 2026-10-02
302other products contain Diphenhydramine Hydrochloride — compare makers, forms and strengths

Every line above is selected, not written, from the official label. Nothing is reworded. DailyMed

What it is for

temporarily relieves these symptoms due to hay fever or other upper respiratory allergies:

  • runny nose sneezing itchy, watery eyes itching of the nose or throat temporarily relieves these symptoms due to the common cold:
  • runny nose sneezing

From the official label · 2024-10-11 · DailyMed

How it works

From the US prescribing label for the same active substance (Diphenhydramine HCL). It describes the substance, not this exact product.

Diphenhydramine hydrochloride is an antihistamine with anticholinergic (drying) and sedative effects.

Antihistamines appear to compete with histamine for cell receptor sites on effector cells.

How it leaves the body

Little, if any, is excreted unchanged in the urine; most appears as the degradation products of metabolic transformation in the liver, which are almost completely excreted within 24 hours.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-08-03

Do not take it if

with any other product containing diphenhydramine, even one used on skin

Quoted from the official label, section “OTC — Do Not Use”.

How to take it

These directions are for this exact strength and form. Another one is different.

  • take every 4 to 6 hours
  • do not exceed 6 doses in 24 hours
  • adults and children 12 years of age and over 25 mg to 50 mg (1 to 2 tablets)
  • children 6 to under 12 years of age 12.5 mg 12.5 mg dosage strength is not available in this package.
  • Do not attempt to break tablets. to 25 mg (1 tablet)
  • children under 6 years of age
  • ask a doctor

Quoted from the official label, section “Dosage & Administration”.

Ask a doctor first if

glaucoma trouble urinating due to an enlarged prostate gland a breathing problem such as emphysema or chronic bronchitis

Quoted from the official label, section “OTC — Ask Doctor”.

Ask a pharmacist first if

you are taking sedatives or tranquilizers

Quoted from the official label, section “OTC — Ask Doctor/Pharmacist”.

Other warnings

  • Do not use with any other product containing diphenhydramine, even one used on skin
  • Ask a doctor before use
  • if you have glaucoma trouble urinating due to an enlarged prostate gland a breathing problem such as emphysema or chronic bronchitis
  • Ask a doctor or pharmacist before use
  • if you are taking sedatives or tranquilizers
  • When using this product marked drowsiness may occur
  • avoid alcoholic drinks alcohol, sedatives, and tranquilizers may increase drowsiness excitability may occur, especially in children be careful when driving a motor vehicle or operating machinery If pregnant or breast-feeding, ask a health professional before use.
  • Keep out of reach of children.
  • marked drowsiness may occur
  • avoid alcoholic drinks alcohol, sedatives, and tranquilizers may increase drowsiness excitability may occur, especially in children be careful when driving a motor vehicle or operating machinery

Quoted from the official label, section “Warnings”.

Pregnancy and breastfeeding

If pregnant or breast-feeding, ask a health professional before use.

Quoted from the official label, section “OTC — Pregnancy or Breast Feeding”.

Keep away from children

In case of overdose, get medical help or contact a Poison Control Center right away.

Quoted from the official label, section “OTC — Keep Out of Reach of Children”.

How to store it

  • each tablet contains:
  • calcium 45 mg
  • store at room temperature 15°-30°C (59°-86°F) retain carton for complete product information

Quoted from the official label, section “Storage and Handling”.

What kind of medicine it is

Antihistamine

Quoted from the official label, section “OTC — Purpose”.

Other ingredients

Relevant if you react to a dye, a preservative, lactose or gluten.

colloidal silicon dioxide, croscarmellose sodium, D&C red #27, dibasic calcium phosphate, FD&C yellow #6, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, titanium dioxide

Quoted from the official label, section “Inactive Ingredients”.

Ingredients people check for

Lactose, gluten, dyes, sugars and other ingredients that matter with an allergy, intolerance or diet — as this product’s FDA label lists them.

  • Colour dyesD&C red #27; FD&C yellow #6Some people react to dyes such as tartrazine (Yellow 5) or carmine.
  • Titanium dioxidetitanium dioxideA whitening agent no longer allowed in food in the EU (E171).

Quoted from the FDA label. A label that does not name an ingredient is not a guarantee that the product is free of it, and formulations change. With an allergy, check the pack and ask a pharmacist.

Every version of this medicine (186)

The same active substance, strength and kind of form, from every company that sells it — with what each label lists.

Hide versions whose label lists:

Showing 80 of 80 (the first 80 are listed)

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

Canada23 matching products

Every strength and form (104)

Details

Made byChain Drug Marketing Association
Active substanceDiphenhydramine Hydrochloride
Used inBreathing, airways, allergies and cough
Strength25 mg
FormTablet, Coated
RouteOral
Packs1 BOTTLE, PLASTIC in 1 CARTON / 300 TABLET, COATED in 1 BOTTLE, PLASTIC · 1 BOTTLE, PLASTIC in 1 CARTON / 100 TABLET, COATED in 1 BOTTLE, PLASTIC
NDC63868-492

Source: NDC Directory · 2026-09-13 · not reviewed by a clinician

Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).

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Other strengths and forms

240 products are sold under this name. Grouped by form; a number on a strength means several companies make it.

Show all forms · 13 forms

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.

Adult Allergy Relief Dye Free25 mg/10mLWithout prescriptionSolution WALGREEN COMPANY · Diphenhydramine HydrochlorideAdwe Dye-Free Childrens Allergy12.5 mg/5mLWithout prescriptionSyrup RARITAN PHARMACEUTICALS INC · Diphenhydramine HydrochlorideAllergy25 mgWithout prescriptionTablet, Film Coated Kroger Company · Diphenhydramine HydrochlorideAllergy25 mgWithout prescriptionTablet, Film Coated Meijer Distribution Inc · Diphenhydramine HydrochlorideAllergy25 mgWithout prescriptionTablet, Coated Discount Drug Mart · Diphenhydramine HydrochlorideAllergy25 mgWithout prescriptionCapsule DISCOUNT DRUG MART · Diphenhydramine Hydrochloride

See every product with Diphenhydramine Hydrochloride