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Zirtek Allergy One a Day 21 Tablets

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Zirtek Allergy tablets are used to treat people who suffer from hay fever or seasonal allergic rhinitis, all year allergies such as dust or pet allergies and treats the skin swelling, redness and itchiness of urticaria.

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Zirtek allergy tablets are used to treat people who suffer from hay fever or seasonal allergic rhinitis, all year allergies such as dust or pet allergies and treats urticaria which is swelling, redness and itchiness of your skin.
Zirtek tablets contain the active ingredient Cetirizine Dihydrochloride. This is an antihistamine, which blocks the effects of a substance called histamine that occurs naturally in your body. Antihistamines relieve the unpleasant symptoms and discomfort such as sneezing, irritated, runny and blocked up nose, itchy red and watering eyes and skin rashes.

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The active substance is Cetirizine Dihydrochloride (10 mg).
The other ingredients are Microcrystalline Cellulose, Lactose Monohydrate, Colloidal Anhydrous Silica and Magnesium Stearate. The film coat contains Hydroxypropylmethylcellulose, Titanium Dioxide (E171) and Polyethylene Glycol.

Adults and children over 6 years: 1 tablet daily. Children aged 6 to 12 years may take either half a tablet twice a day or one tablet daily. Children under 6: not recommended except on medical advice. You should make sure that you carefully read all product packaging and labels prior to use.

Do not use in pregnancy, or breast feeding. Avoid use if sensitive to any of the ingredients. Not to be used by children under 6 years of age.

Standard Delivery

Standard Mainland UK delivery is £3.95* 

We aim to deliver orders within 3-5 working days to the shipping address provided by you in your order if the shipping address is in the UK.  For orders being delivered outside mainland UK, this will be longer and we cannot give a guaranteed delivery time due to the differences between carriers. Delivery timescales are estimates only. If you do not receive your order within 14 days of us confirming your order has been sent you must notify us and we will investigate the non-delivery provided. Orders from outside the UK have varied delivery charges, depending on the particular country.  Please note that in some instances you may be required to answer product related questions from our Pharmacist as part of the checkout process.  Failiure to answer these will cause delays.  Please allow extra time for Pharmacy approved products.  Please note that Bank Holidays do not count as working days.

Delivery charges for orders outside the UK will vary. *Northern Ireland delivery charges different

Express UK Delivery

Express Mainland UK delivery is £6.95*, non mainland islands may vary

Please note that Express delivery is only available on orders placed before 1pm (GMT) Monday to Friday in the UK.  After 1pm we cannot guarantee express delivery, even if it has been selected.  Please note that this is not a guaranteed next day service, but is an expedited delivery option.  Products which need to be approved by a pharmacist are not suitable for express delivery.

*Northern Ireland delivery charges different

Free Delivery on orders over £50*

This applies to orders delivered to UK addresses only.  *Exclusions may apply.


We hope you will be happy with any items you’ve ordered from us, but if you’re not entirely satisfied, you’ll find details of our returns policy on the link below.

Delivery outside of the EU

Please note that certain medicines and medical devices sold on this website cannot be purchased if you live outside of the European Union.


Please visit our Delivery & Returns page for more information.