Benadryl Allergy One A Day Tablets

  • Effective antihistamine tablets for hay fever and allergy relief
  • Provides 24-hour symptom relief with a convenient one-a-day dose
  • Helps treat seasonal hay fever, pet or dust allergies, and hives
Fast & Free Delivery Options

Variety of delivery options including next day & free delivery.

100% UK-based Pharmacy

Pharmacy, clinic and prescribers based in Greater Manchester.

Free Online Consultations

Start your treatment with a quick and free online consultation.

  • Total

In stock

£7.69
24 hr tracked delivery once approved
Fast & Free Delivery Options

Variety of delivery options including next day & free delivery.

100% UK-based Pharmacy

Pharmacy, clinic and prescribers based in Greater Manchester.

Free Online Consultations

Start your treatment with a quick and free online consultation.

How to Buy Online

Step 1: Online Consultation

Fill in a quick online consultation for our licensed pharmacists to review.

Step 2: Choose a Treatment

Our pharmacists will review your treatment to ensure it’s suitable.

Step 3: Quick & Discreet Delivery

Your treatment will be delivered to your door quickly & discreetly.

About Benadryl Allergy One A Day Tablets

Benadryl Allergy One A Day Tablets contain cetirizine dihydrochloride 10 mg per tablet, an antihistamine used to relieve the symptoms of hay fever and other allergies. It is designed to treat conditions such as perennial allergic rhinitis, dust mite and pet allergies, and chronic nettle rash (urticaria). Benadryl Allergy One A Day works by blocking histamine receptors in the body, helping to stop sneezing, a runny nose, watery eyes, and itchy skin.

Benadryl Allergy One A Day Tablets are suitable for adults and children aged 12 years and over and come in a pack size of 30 tablets:

  • Benadryl Allergy One A Day Tablets – 30 tablets
Medication Name Benadryl Allergy 10mg One a Day Tablets
Active Ingredient Cetirizine dihydrochloride 10 mg per tablet
Medication Form Oral film-coated tablets
Used to Treat Hay fever, pet/dust allergies, and skin rashes (urticaria)
Available Sizes 30-tablet pack
Who Can Use It Adults and children aged 12 years and over
Prescription Required? No – Pharmacy (P) medicine
Patient Information Leaflet Benadryl Allergy One A Day Tablets – Patient Information Leaflet

What Are Benadryl Allergy One A Day Tablets Used For?

Benadryl Allergy One A Day Tablets are used to relieve symptoms associated with seasonal allergic rhinitis (hay fever), perennial allergic rhinitis (such as dust mite or pet allergies), and chronic idiopathic urticaria (nettle rash). They help control sneezing, a blocked or runny nose, itchy and watery eyes, and itchy skin reactions.

Who Are Benadryl Allergy One A Day Tablets Suitable For?

Benadryl Allergy One A Day Tablets are suitable for adults and children aged 12 years and over.

Do not use Benadryl Allergy One A Day Tablets if you:

  • Are allergic to cetirizine dihydrochloride, hydroxyzine, any piperazine derivatives, or any of the listed ingredients
  • Have severe kidney failure (end-stage renal disease with a creatinine clearance below 10 ml/min)
  • Are under 12 years of age

Speak to a healthcare professional before use if you:

  • Have kidney problems or are undergoing dialysis
  • Are epileptic or at risk of experiencing fits or convulsions
  • Have an intolerance to some sugars, as this product contains lactose
  • Are pregnant or breastfeeding
  • Are taking any other medications, especially other antihistamines or central nervous system depressants

How to Use Benadryl Allergy One A Day Tablets

  1. Take one tablet once a day.
  2. Swallow the tablet whole with a glass of water.
  3. The tablet can be taken with or without food.
  4. Do not exceed the recommended dose of one tablet per 24 hours.

If you forget to take your dose, take it as soon as you remember, unless it is almost time for your next dose. Do not take a double dose to make up for a forgotten tablet.

Possible Side Effects of Benadryl Allergy One A Day Tablets

Common side effects:

  • Somnolence, sleepiness, or tiredness
  • Dizziness or headache
  • Dry mouth
  • Nausea, stomach pain, or mild diarrhoea
  • Pharyngitis or rhinitis (in children)

Uncommon:

  • Agitation or restlessness
  • Paraesthesia (tingling or numbness)
  • Pruritus (itching) or rash
  • Diarrhoea

Rare:

  • Allergic reactions, including hypersensitivity and severe swelling
  • Aggression, confusion, depression, or hallucinations
  • Convulsions or movement disorders
  • Tachycardia (rapid heartbeat)
  • Liver function abnormalities

Warnings and Precautions

  • Do not exceed the recommended dose of one tablet per day.
  • May cause drowsiness or dizziness in some individuals; do not drive or operate machinery if affected.
  • Contains lactose; consult your doctor if you have a known sugar intolerance.
  • Avoid consuming excessive amounts of alcohol while taking this medicine.

Storage Instructions

  • Store in a cool, dry place below 25°C.
  • Keep out of the sight and reach of children.
  • Do not use after the expiry date printed on the packaging.

Ingredients

Active ingredient: Cetirizine dihydrochloride 10 mg per tablet.
Other ingredients: Microcrystalline cellulose, lactose, colloidal anhydrous silica, magnesium stearate. Film coating contains hydroxypropylmethylcellulose (E464), titanium dioxide (E171), and macrogol 400.

Important Information

  • Suitable for adults and adolescents aged 12 years and over.
  • Provides 24-hour symptom relief with just one daily dose.
  • Can be used for year-round indoor allergies as well as seasonal hay fever.

Benadryl Allergy One A Day Tablets Reviews

Our Experienced UK-based Pharmacy Team

Clinical Consultant
MUDr, MRCEM, EBCEM, FRCEM
GMC no. 7176414

Pharmacist
MPharm
GPhC no. 2065469

Pharmacist
MPharm
GPhC no. 2046514

Page content authored by Amjad Khan, last reviewed by Dr Hussain Ahmad on 24th September 2026.