Cetirizine is an antihistamine medication that is used for the relief of the symptoms of allergies. It is used for seasonal allergy (hay fever) and for all year-round allergies such as allergies caused by dust mites and pets. Cetirizine can also be used to manage itchy skin rashes such as hives. 

Cetirizine (Generic Benadryl/Piriteze/Zirtek)

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Brand or Generic

Strength

Quantity

Cetirizine (Generic Benadryl/Piriteze)

Cetirizine (Generic) / 10mg / 30 Tablets

Cetirizine (Generic) / 10mg / 60 Tablets

Cetirizine (Generic) / 10mg / 180

Cetirizine was made popular under the brand names Benadryl and Zirtek tablets including oral solutions but it is now commonly seen as a generic medication. Cetirizine provides both quick and long-lasting relief from allergies helping you to get on with your day relieved. 

Cetirizine is a type of antihistamine medication so it works by stopping the effects of histamine in the body. Histamine is released by the body in response to an allergen and it is responsible for the symptoms associated with allergic reactions and hay fever. Blocking the effects of histamine can provide relief from the symptoms of hay fever and allergies.  

Cetirizine is another type of newer (2nd-generation) antihistamines, meaning it has the benefit of being less likely to cause drowsiness and sedation when compared to older 1st-generation antihistamines.

The effectiveness of Cetirizine has been studied in various clinical trials for both the management of hay fever and allergic skin reactions. Studies show that Cetirizine strongly prevents skin reactions that are caused by high levels of histamine.

Cetirizine has also shown to be effective in managing symptoms of both seasonal and persistent allergies including eye and nose symptoms, even after 1 day of treatment. Cetirizine provides constant relief when taken consistently over a 2-4 week period. 

Generic and branded make of a medicine are the same and both makes have to meet the same quality and safety standards before they are allowed to be sold as a medicine. 

All generic medicines that are available in the UK/EU through authorised pharmacies, like My Private Pharmacist, are licensed and genuine medications so they are safe to use as intended.  

What is the difference between brand and generic makes of a medicine?

A branded make of medicine initially becomes available for sale by the innovating manufacturer that has discovered the medicine through a very expensive process. As a result, this manufacturer receives the right (patent) from the government to become the only company that is allowed to make and sell such medicine for many years so they can recuperate some of their expenses and make some profit from their work.

After the patent period is over, other manufacturers will be allowed to manufacture this branded medicine, but they will only be allowed to offer the medicine under the medicines actual name (known as the Generic name) or through their own new brand for marketing purposes. As this process is not as expensive as the initial medicine discovery, generic manufactures can offer the medicine at a much cheaper price compared to the innovator’s branded one. 

Why is the generic make cheaper than the brand?

The recommended dose of Cetirizine is one tablet (10mg) once a day for adults and children over 12 years old.  For children aged between 6 and 12 years, the recommended dose is half a tablet (5mg) twice a day. These tablets should be taken with a glass of water. 

You can take Cetirizine as necessary when you are exposed to an allergy or for persistent conditions such as hay fever, it may be beneficial to take Cetirizine every day to get continuous relief. 

Possible side effects associated with Cetirizine use include:

Common (1 in 10 – 1 in 100 people) – headache or dizziness, drowsiness or tiredness, Restlessness, dry mouth, sore throat, upset stomach, abdominal pain, diarrhoea, feeling sick (nausea), runny nose


Uncommon (1 in 100 – 1 in 1,000 people) - agitation, unusual weakness, feeling of general discomfort or uneasiness, pins & needles

Please visit the product’s Patient Information Leaflet for a complete list of possible side effects. Note possible means that not everyone will get affected and not all side-effects may appear in one person.

If you experience any side effects, you must stop taking cetirizine and consult your doctor or pharmacist. You can always contact your pharmacist at My Private Pharmacist during our pharmacy opening hours for further advice. 

In case of any severe and potentially life threatening events, always call 999 and seek urgent medical care.

Help Section

Features

Allergy & Hay fever

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The information you provide us in this consultation will be used by the pharmacist to ensure the suitability and safety of the treatment you are looking to purchase. Any information you provide will be treated confidentially in accordance with our privacy policy

Cetirizine (Generic Benadryl/Piriteze/Zirtek)

Cetirizine (Generic Benadryl/Piriteze/Zirtek)

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Cetirizine (Generic Benadryl/Piriteze/Zirtek)

Cetirizine (Generic Benadryl/Piriteze/Zirtek)

What is Cetirizine?

How does Cetirizine help with allergies?

Does Cetirizine really help?

What is the difference between brand and generic makes of a medicine?

Why is the generic make cheaper than the brand?

Recommended dose of Cetirizine

Possible side effects

Patient Information Leaflet

We’re Here When You Need Us

The My Private Pharmacist Advantage

Trusted Pharmacy

Pharmacist Consultation

Efficient Service

Free UK Delivery*

Helpful Links

Pharmacy Contacts

Registration & Verification: