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Piriteze Once A Day Allergy Syrup -70ml

Piriteze Once A Day Allergy Syrup -70ml

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  • ✔️ Relieves hay fever, hives, and allergic rhinitis symptoms in children
  • ✔️ Once-daily dosing keeps allergy symptoms controlled for 24 hours
  • ✔️ Sugar-free formula suitable for children with dietary restrictions
  • ✔️ Non-drowsy cetirizine causes less sedation than older antihistamines
  • ✔️ Suitable for children aged 2 to 12 years with a measured oral syringe

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Is Piriteze Allergy Syrup the Right Cetirizine Syrup for Children?

 

If your child sneezes constantly through spring, rubs their eyes until they're red, or breaks out in hives after stroking the family cat, you'll know how disruptive allergies can be. Piriteze Once A Day Allergy Syrup 70ml is a sugar-free, banana-flavoured liquid antihistamine designed specifically for children aged 2 years and over. It contains cetirizine hydrochloride at a concentration of 1mg per ml — a well-established, second-generation antihistamine that the NHS recognises as an effective treatment for allergic conditions. You can find it alongside other allergy and hay fever treatments at Cured Pharmacy, priced at just £5.49 for a 70ml bottle.

Allergic rhinitis affects a significant proportion of children in the UK, and managing it well can make a real difference to sleep, concentration, and quality of life. Piriteze's once-daily dosing means you only need to remember one dose per day — no mid-school-day top-ups required.

 

How Does Piriteze Once A Day Allergy Syrup Work?

 

Cetirizine hydrochloride works by selectively blocking peripheral H1 histamine receptors. When the body encounters an allergen — pollen, pet dander, dust mites — it releases histamine, which binds to these receptors and triggers the familiar cascade of symptoms. By occupying those receptors first, cetirizine prevents histamine from doing its damage.

  • Histamine is released in response to an allergen.
  • Cetirizine binds to H1 receptors before histamine can attach.
  • Allergy symptoms — sneezing, itching, watery eyes, runny nose — are reduced or prevented.
  • As a second-generation antihistamine, cetirizine is less likely to cause sedation than older antihistamines such as chlorphenamine.

The syrup formulation is particularly useful for younger children who cannot swallow tablets, and the banana flavour tends to make administration far less of a battle.

 

Who Should Use Piriteze Once A Day Allergy Syrup?

 

This syrup is intended for children aged 2 to 12 years who experience symptoms of allergic conditions. It is not licensed for children under 2 years of age. Adults and adolescents over 12 may find the tablet or film-coated tablet formulations of cetirizine more practical.

  • Children aged 2–12 years with hay fever (seasonal allergic rhinitis)
  • Children with perennial allergic rhinitis triggered by dust mites or pet dander
  • Children experiencing urticaria (hives) or allergic skin reactions
  • Children who struggle to swallow tablets or capsules

Always check with your pharmacist or GP before starting treatment if your child has kidney or liver problems, epilepsy, or is taking other medicines.

 

How Does Piriteze Allergy Syrup Compare to Other Children's Antihistamines?

 

Feature Piriteze Once A Day Allergy Syrup Piriton Syrup (Chlorphenamine)
Active ingredient Cetirizine hydrochloride 1mg/ml Chlorphenamine maleate 2mg/5ml
Generation of antihistamine Second-generation (non-sedating) First-generation (sedating)
Dosing frequency Once daily Up to 4–6 times daily
Minimum age 2 years 1 year
Sugar-free Yes No

 

Is Piriteze Allergy Syrup Suitable for Children With Kidney Problems?

 

Cetirizine is primarily excreted by the kidneys. If your child has impaired renal function, the dose may need to be reduced or the dosing interval extended. This is not a decision to make without medical guidance — speak to your GP or paediatric specialist before giving cetirizine syrup for children if there is any known kidney or liver condition.

Store the bottle below 25°C, away from direct sunlight, and keep it out of the reach and sight of children. Once opened, use within the period stated on the label. If you're also managing other childhood health concerns, our baby and toddler range may have additional products to support your child's wellbeing.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Piriteze Once A Day Allergy Syrup 70ml specifications
Treatment category Antihistamine / Allergy relief
Active ingredient Cetirizine hydrochloride 1mg/ml
Mechanism of action Selective peripheral H1 receptor antagonist
Suitable for Children aged 2–12 years
Pack size 70ml
UK classification P (Pharmacy medicine)
Drug class Second-generation antihistamine
Preparation Oral solution (syrup)
Route of administration Oral
Effective for Hay fever, allergic rhinitis, urticaria

Specifications of Piriteze Once A Day Allergy Syrup 70ml

 

What Is Piriteze Once A Day Allergy Syrup and What Is It Used For?

 

Piriteze Once A Day Allergy Syrup is an oral antihistamine solution containing cetirizine hydrochloride 1mg/ml. It is used to relieve the symptoms of allergic conditions in children aged 2 to 12 years. These conditions include hay fever (seasonal allergic rhinitis), year-round allergic rhinitis caused by triggers such as house dust mites or animal fur, and urticaria (hives). The NHS lists cetirizine as one of the recommended non-drowsy antihistamines for managing these conditions.

The syrup is sugar-free and banana-flavoured, making it easier to administer to young children. It works for a full 24 hours from a single daily dose, which simplifies the routine for parents and carers considerably.

 

What Do You Need to Know Before Using Piriteze Once A Day Allergy Syrup?

 

Before giving this syrup to your child, read the following carefully. There are certain situations where it should not be used, and others where extra caution is needed.

Do not use Piriteze Allergy Syrup if your child:

  • Is under 2 years of age
  • Is allergic to cetirizine hydrochloride, hydroxyzine, or any other ingredient in the syrup
  • Has severe kidney disease (end-stage renal impairment)

Speak to your doctor or pharmacist first if your child:

  • Has kidney or liver problems
  • Has epilepsy or a history of seizures
  • Has a condition that increases the risk of urinary retention (e.g. spinal cord lesion)
  • Is taking other medicines, including herbal remedies

Known drug interactions to be aware of:

  • Alcohol — may increase sedative effects; avoid giving alcohol alongside this medicine
  • Other antihistamines — concurrent use is not recommended
  • CNS depressants (e.g. sedatives, anxiolytics) — may enhance drowsiness
  • Theophylline — may slightly reduce the clearance of cetirizine at high doses

 

How Should You Use Piriteze Once A Day Allergy Syrup?

 

Always follow the dosage instructions in the patient information leaflet or as directed by your pharmacist. The syrup should be given orally, once a day, using the measuring device provided.

  1. Shake the bottle gently before use.
  2. Use the oral syringe or measuring spoon provided — never use a household teaspoon, as this may give an inaccurate dose.
  3. Measure the correct volume for your child's age group (see table below).
  4. Give the syrup directly into your child's mouth, or mix with a small amount of water if preferred.
  5. Replace the cap securely after use.
Age Group Dose Frequency
2–6 years 2.5ml (2.5mg cetirizine) Once daily
6–12 years 5ml (5mg cetirizine) Once daily

Do not exceed the stated dose. If symptoms do not improve after a few days, consult your GP. For children managing multiple allergy-related symptoms, you may also want to explore our eye care range for products that address allergic conjunctivitis alongside systemic treatment.

 

What Are the Possible Side Effects of Piriteze Once A Day Allergy Syrup?

 

Like all medicines, Piriteze can cause side effects, although not everyone experiences them. The NHS notes that cetirizine is generally well tolerated in children.

Common side effects (may affect up to 1 in 10 children):

  • Drowsiness or sleepiness
  • Headache
  • Dry mouth
  • Dizziness
  • Gastrointestinal discomfort (nausea, stomach pain)

Less common side effects (may affect up to 1 in 100 children):

  • Agitation or restlessness
  • Paraesthesia (tingling or numbness)
  • Fatigue
  • Skin rash or itching

Rarely, serious allergic reactions (anaphylaxis) have been reported. Seek immediate medical attention if your child develops swelling of the face, lips, or throat, difficulty breathing, or a sudden severe rash.

 

How Should You Store Piriteze Once A Day Allergy Syrup?

 

Correct storage helps maintain the medicine's effectiveness and safety throughout its shelf life.

  • Store below 25°C in a cool, dry place.
  • Do not refrigerate or freeze.
  • Keep the bottle tightly closed when not in use.
  • Keep out of the reach and sight of children.
  • Do not use after the expiry date printed on the label.
  • Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacist.

If you're looking for further support managing seasonal allergies in your household, our ear, nose and throat range includes nasal sprays and other products that complement antihistamine treatment.

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Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Piriteze Once A Day Allergy Syrup online in the UK?

You can buy Piriteze Once A Day Allergy Syrup 70ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £5.49. It is available without a prescription as an over-the-counter medicine. Browse our full allergy and hay fever range for related products.

How does Piriteze Allergy Syrup work in the body?

Piriteze contains cetirizine hydrochloride, which selectively blocks peripheral H1 histamine receptors. When your child encounters an allergen, the body releases histamine — cetirizine prevents histamine from binding to those receptors, stopping allergy symptoms before they take hold. It begins to work within one hour of taking the dose and provides relief for up to 24 hours.

How do I give Piriteze Allergy Syrup to my child step by step?

Shake the bottle gently, then use the measuring syringe or spoon provided to draw up the correct dose for your child's age. Give the syrup directly into your child's mouth — you can follow it with a small drink of water if needed. Always replace the cap tightly after use and store the bottle below 25°C.

What is the correct dose of Piriteze Allergy Syrup for my child?

Children aged 2 to 6 years should receive 2.5ml (2.5mg cetirizine) once daily. Children aged 6 to 12 years should receive 5ml (5mg cetirizine) once daily. Never exceed the recommended dose, and always use the measuring device provided rather than a household spoon.

What is the best time of day to give Piriteze Allergy Syrup?

Piriteze can be given at any time of day, with or without food, but giving it at the same time each day helps maintain consistent levels in the body. Some parents prefer to give it in the evening, as any mild drowsiness that occurs will then coincide with bedtime. Consistency matters more than the specific time chosen.

What are the side effects of Piriteze Allergy Syrup and how do I manage them?

The most common side effects include drowsiness, headache, and dry mouth. If your child feels sleepy after taking the syrup, giving the dose in the evening can help minimise disruption to their day. If side effects are persistent or worrying, stop use and speak to your pharmacist or GP promptly.

Who is eligible to use Piriteze Once A Day Allergy Syrup?

Piriteze Allergy Syrup is suitable for children aged 2 to 12 years who experience symptoms of hay fever, allergic rhinitis, or urticaria. It should not be given to children under 2 years of age or to those with known hypersensitivity to cetirizine or hydroxyzine. Children with kidney or liver problems should only use it under medical supervision.

What happens if I miss a dose of Piriteze Allergy Syrup?

If you forget to give a dose, administer it as soon as you remember — unless it is nearly time for the next scheduled dose, in which case skip the missed dose entirely. Never give a double dose to compensate for a missed one, as this increases the risk of side effects. Simply continue with the regular once-daily schedule.

Can Piriteze Allergy Syrup be given to children under 2 years old?

No — Piriteze Once A Day Allergy Syrup is not licensed for use in children under 2 years of age. If your child is younger than 2 and experiencing allergy symptoms, speak to your GP or health visitor for appropriate advice. Do not attempt to adjust the dose for younger children without medical guidance.

Is Piriteze Allergy Syrup non-drowsy?

Cetirizine is classified as a second-generation, non-sedating antihistamine, meaning it is far less likely to cause drowsiness than older antihistamines such as chlorphenamine. However, a small number of children may still experience some sleepiness. If this occurs, giving the dose at bedtime is a practical solution.

What are alternatives to Piriteze Allergy Syrup for children?

Alternatives include other cetirizine-based syrups (own-brand versions), loratadine syrup, or — for children aged 1 year and over — Piriton Syrup containing chlorphenamine. Your pharmacist can help you choose the most appropriate option based on your child's age, symptoms, and any other medicines they are taking. You can explore options in our allergy and hay fever collection.

How long can my child use Piriteze Allergy Syrup?

For seasonal hay fever, Piriteze can be used throughout the allergy season — typically spring and summer in the UK. For year-round allergic conditions, longer-term use may be appropriate under the guidance of a GP. If symptoms persist beyond a few weeks without improvement, a medical review is advisable.

Can Piriteze Allergy Syrup be used alongside nasal sprays or eye drops?

Yes, cetirizine syrup can generally be used alongside topical treatments such as corticosteroid nasal sprays or antihistamine eye drops, as these act locally rather than systemically. Always inform your pharmacist of all medicines your child is taking to check for any interactions. Our eye care range includes products suitable for allergic eye symptoms.

Does Piriteze Allergy Syrup contain sugar or artificial colours?

Piriteze Once A Day Allergy Syrup is sugar-free, making it suitable for children who need to limit their sugar intake or who have dental concerns. It is banana-flavoured using permitted flavourings. Always check the full ingredients list in the patient information leaflet if your child has known food sensitivities or allergies.

What is the latest guidance on using cetirizine in children?

Current NHS and BNF guidance supports the use of cetirizine hydrochloride as a first-line, non-sedating antihistamine for children aged 2 years and over with allergic rhinitis and urticaria. It remains one of the most widely recommended options due to its once-daily dosing, established safety profile, and low incidence of sedation compared to first-generation antihistamines.

How Should You Use Piriteze Once A Day Allergy Syrup?

Always read the patient information leaflet before giving this medicine to your child. Use only the measuring device supplied with the bottle — a standard household teaspoon is not accurate enough and could result in an incorrect dose.

What Is the Correct Dose of Piriteze Once A Day Allergy Syrup?

The dose depends on your child's age. Do not give more than the recommended amount, and do not give this syrup to children under 2 years of age. If you are unsure which dose applies to your child, ask your pharmacist before use.

When Is the Best Time to Use Piriteze Once A Day Allergy Syrup?

Piriteze can be given at any time of day, with or without food. Giving it at the same time each day — whether morning or evening — helps you build a consistent routine and ensures your child maintains steady levels of the medicine throughout the day. If your child experiences any mild drowsiness, an evening dose is a practical choice so that sleepiness occurs during sleep hours rather than during school or play.

How Long Can You Use Piriteze Once A Day Allergy Syrup For?

For seasonal allergies such as hay fever, Piriteze can be used throughout the relevant pollen season, which in the UK typically runs from late March through to September depending on the specific allergen. For year-round conditions such as perennial allergic rhinitis triggered by dust mites or pet dander, longer-term use may be appropriate — but this should be reviewed periodically with your GP or pharmacist. If your child's symptoms do not improve after a few days of treatment, or if they worsen at any point, seek medical advice promptly.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Piriteze Once A Day Allergy Syrup?

Most children tolerate Piriteze well, but as with any medicine, side effects can occur. The NHS notes that cetirizine is generally considered non-drowsy, though a small number of children may still feel sleepy after taking it. Common side effects — those affecting up to 1 in 10 children — include:

  • Drowsiness or sleepiness
  • Headache
  • Dry mouth
  • Dizziness
  • Nausea or stomach discomfort

What Are the Less Common Side Effects of Piriteze Once A Day Allergy Syrup?

Less common side effects affect up to 1 in 100 children. These are generally mild and tend to resolve on their own, but you should mention them to your pharmacist if they persist or cause distress.

  • Agitation or restlessness
  • Fatigue or unusual tiredness
  • Paraesthesia (tingling or pins and needles)
  • Skin rash or itching
  • Diarrhoea

What Are the Serious Side Effects of Piriteze Once A Day Allergy Syrup?

Serious side effects are rare but require immediate medical attention. Stop giving the syrup and call 999 or go to your nearest A&E if your child develops any of the following signs of a severe allergic reaction (anaphylaxis):

  • Sudden swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Rapid heartbeat combined with dizziness or collapse
  • A widespread, rapidly spreading rash

Convulsions have been reported very rarely with cetirizine use. If your child has a seizure, seek emergency medical help immediately.

What Should You Do If Your Child Experiences Side Effects?

For mild side effects such as drowsiness, try switching the dose to the evening so any sleepiness occurs during sleep hours. For dry mouth, encourage your child to drink water regularly throughout the day. If side effects are persistent, worsening, or causing significant distress, stop use and speak to your pharmacist or GP. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Piriteze Allergy Syrup Interact With Other Medicines?

Cetirizine can interact with certain other medicines and substances. Alcohol should be avoided as it may increase sedative effects. Other antihistamines should not be taken at the same time. CNS depressants — including sedatives and some anxiety medicines — may enhance drowsiness when combined with cetirizine. High doses of theophylline have been shown to slightly reduce the clearance of cetirizine from the body. Always tell your pharmacist about all medicines, supplements, and herbal remedies your child is taking before starting Piriteze.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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