• Provides fast relief from sneezing and itchy eyes
  • Non-drowsy formula helps you stay alert
  • Trusted for hayfever, pet, and dust mite allergies

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Overview

When hayfever strikes, even simple things like going for a walk, working outdoors, or getting a good night’s sleep can feel impossible. Piriteze 10mg tablets provide trusted, non-drowsy relief from sneezing, runny nose, itchy eyes, and congestion — helping you take back control from allergies. Fast-acting and long-lasting, Piriteze lets you enjoy your day without hayfever holding you back.

This medicine requires a secure online consultation with a UK-registered prescriber, and will only be supplied if clinically appropriate.


What is Piriteze

Piriteze 10mg tablets contain cetirizine hydrochloride, a well-established second-generation antihistamine used to treat hayfever (seasonal allergic rhinitis), perennial allergies, and skin conditions such as hives.

Works within 1 hour of taking a dose


Provides up to 24 hours of relief


Relieves sneezing, itchy/watery eyes, runny or blocked nose, and skin irritation


Non-drowsy in most people — suitable for daytime use


Piriteze is widely used during hayfever season and is one of the most common antihistamines prescribed and purchased in the UK.

Directions

  • Adults and children aged 12+: One tablet daily with water
  • Take at the same time each day for consistent relief
  • Do not exceed the recommended dose
  • Can be taken with or without food
  • Always follow your prescriber’s advice.

Side Effects

Like all medicines, Piriteze (cetirizine) can cause side effects, although not everyone gets them. Most are mild, short-lived, and improve as your body adjusts.

Common (may affect up to 1 in 10 people):

  • Drowsiness – although Piriteze is classed as a “non-drowsy” antihistamine, some people may still feel sleepy. If this happens, avoid driving or operating machinery until you know how it affects you.
  • Headache – mild headaches are fairly common and can often be managed with hydration, rest, or simple pain relief.
  • Dry mouth – you may notice a dry or uncomfortable feeling in your mouth. Drinking water often or chewing sugar-free gum can help.
  • Nausea – some people may feel mildly sick. Taking Piriteze with food can sometimes reduce this effect.


Less common (may affect up to 1 in 100 people):

  • Stomach pain – occasional abdominal discomfort may occur but usually passes quickly.
  • Fatigue – some people feel more tired than usual, especially when starting treatment.
  • Dizziness – rarely, cetirizine can cause light-headedness. Rising slowly from sitting or lying down can help reduce this.

 


Rare but serious (seek urgent medical help):

Severe allergic reaction (anaphylaxis) – symptoms include swelling of the face, lips, tongue or throat, difficulty breathing, or a sudden rash. This is extremely rare but requires immediate emergency care.


Most people tolerate Piriteze (cetirizine) well, and side effects (if they do occur) are generally mild and temporary. If you are concerned about symptoms, or they do not improve, speak to your doctor, pharmacist, or prescriber.

Disclaimer: This is not a complete list of side effects. Always read the patient information leaflet that comes with your medicine for full details. If you experience severe or worrying symptoms, seek medical advice straight away. In an emergency, call 999 or go to A&E.

Warnings

Piriteze may not be suitable if you:

  • Are allergic to cetirizine or any tablet ingredients
  • Have severe kidney problems
  • Are pregnant or breastfeeding (seek prescriber advice)
  • Are taking other sedating medicines (risk of drowsiness)
Frequently asked questions

  • What is Piriteze and what is it used for?

    Piriteze contains cetirizine hydrochloride, a non-drowsy antihistamine used to treat hay fever, pet allergies, dust allergies and itchy skin reactions. It helps reduce sneezing, runny nose, watery eyes and itchiness by blocking histamine in the body.

  • How does Piriteze relieve hay fever and allergy symptoms?

    Piriteze blocks histamine, a chemical released during an allergic reaction. This helps reduce irritation, sneezing, watery eyes and nasal symptoms. Many people choose the branded version if they prefer a familiar product with consistent performance.

  • How fast does Piriteze start working?

    Piriteze typically starts working within one hour, although some people feel improvement sooner. It provides relief for a full 24 hours, making it suitable for once-daily use during the allergy season.

  • Can Piriteze make you drowsy?

    Piriteze is classed as non-drowsy, but a small number of people may feel slightly sleepy. This often settles after a few days. If drowsiness becomes an issue, taking the dose in the evening may help.

  • Can children take Piriteze safely?

    Yes. Piriteze is often recommended for children with hay fever or allergies. Liquid versions are available for younger ages, and doses vary depending on the child’s age. Always follow clinical advice when treating children.

  • Who should avoid taking Piriteze?

    Piriteze may not be suitable for people with severe kidney problems, certain long-term conditions or those taking sedating medicines. Pregnant or breastfeeding individuals should check with a clinician before use.

  • Can I take Piriteze with other allergy medicines?

    Yes. Piriteze can be combined with nasal sprays or eye drops for stronger relief during peak allergy periods. Avoid taking it with other antihistamines unless advised by a clinician.

  • Is Piriteze different from generic cetirizine?

    Piriteze contains the same active ingredient as generic cetirizine and works in the same way. Some people choose the branded version because they trust the manufacturer or feel it works more consistently, but both options provide effective symptom relief.

  • Does Piriteze work for pet, dust and mould allergies?

    Yes. Piriteze can reduce sneezing, itching and watery eyes linked to indoor allergies such as dust mites, pet dander and mould spores. Many people take it daily if symptoms worsen at home or during certain seasons.

  • Is Piriteze good for skin allergies or hives?

    Piriteze is often recommended for hives, rashes and itchy skin reactions. It reduces histamine-related swelling, redness and irritation, with many people noticing relief within a few hours.

  • Can I take Piriteze every day during high-pollen season?

    Yes. Piriteze is safe for daily use and is often taken throughout spring and summer for continuous control. Consistent daily dosing helps maintain protection during high-pollen spikes.

  • Is Piriteze better for people with seasonal allergies that fluctuate day-to-day?

    Many people find Piriteze helpful during fluctuating pollen levels because it provides 24-hour coverage without needing multiple daily doses. This makes it suitable if your symptoms vary depending on weather, location or outdoor exposure. The consistent once-daily dosing helps stabilise relief even during unexpected pollen spikes.

  • Can Piriteze help if my symptoms are worse at night or early morning?

    Yes. If your hay fever symptoms peak overnight or first thing in the morning, taking Piriteze in the evening can provide more consistent relief. Many people notice better sleep and less early-morning congestion when dosing later in the day. It’s safe to adjust timing as long as you only take one dose every 24 hours.

  • Is Piriteze suitable for people who experience allergy-related headaches or facial pressure?

    Yes. Allergies can trigger sinus congestion, which may lead to headaches or facial pressure. Piriteze reduces the histamine response that causes swelling in the nasal passages, helping relieve pressure-related discomfort. Some people also combine Piriteze with a saline nasal spray for extra comfort during peak symptoms.

  • Can I take Piriteze during long-haul travel or when changing environments quickly?

    Piriteze is suitable for people travelling between different climates or pollen regions. It provides all-day protection, which helps manage sudden symptom changes caused by new allergens, dry cabin air or dust exposure in unfamiliar places. Taking it before travel can help prevent flare-ups during the trip.