Available size:

70 ml

Price £5.99

In stock


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Delivery Time


Expected delivery date:

Wednesday, 13 December 2023

If you order within:


Next Day Delivery

Next Day

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UK Registered Pharmacy

UK Registered

Discreet & Confidential

Discreet &

  • Overview
  • FAQ
  • Side Effects
  • Patient Information Leaflet
  • Reviews

What is Piriteze

Piriteze syrup is an antihistamine used to treat allergies such as hay fever and other allergies. It may also be used to treat rashes and hives. It contains cetirizine hydrochloride, which works to block the body’s production of histamine, an immune system response to exposure to allergens. Symptoms of hay fever include itchy, dry eyes, sneezing and a blocked nose. 

How effective is Piriteze Syrup?

Piriteze Syrup is an effective one-dose-per-day treatment in children and two-dose-per-day treatment in adults to relieve allergy symptoms, such as sneezing, blocked nose and sore eyes. It works against allergies such as hay fever caused by the release of pollen from trees, grass and weeds. It can also be used for skin allergies, pet allergies, mould spore allergies and dust mite allergies. It is also used as treatment for hives, known as urticaria. Hives show up on the skin as raised white or red lumps surrounded by red inflammation, which can itch or sting. Piriteze Syrup is best taken as a preventative treatment when exposure to allergens is certain, hay fever season, for example. Always read the label and follow the instructions recommended.

What dose should I take?

Piriteze Syrup is suitable for adults and children over the age of six. Piriteze Syrup is taken once per day at 10ml for adults and children over the age of 12. Children ages 6-12 need to take 5ml two times per day. Always follow the dosage instructions given by a doctor or pharmacist. If a dose is missed, take as soon as you remember. Do not take a double dose. Consult a doctor or pharmacist in the case of an overdose. Talk to your doctor or pharmacist about the best time of day to take. Piriteze may cause drowsiness, and you may not be able to drive or operate heavy machinery after taking. 

Piriteze Syrup needs to be measured out using a medical spoon, cup or syringe for the correct dosage. Do not use a kitchen spoon. Shake the bottle before use. Store out of sight and reach of children for safety. Do not use past the expiry date printed on the label. Always store all medicines in the original container. Like all medicines, unused Piriteze Syrup cannot be disposed of with normal household waste. Bring unused medicines to the pharmacy for disposal. 

Piriteze Syrup is best taken as a preventative treatment before exposure to known allergens. Start taking before hay fever gets started so it is already in the system and ready to combat the body's immune response. Talk to your doctor or Click Pharmacy pharmacist about the best time of the day to take, especially if taking for hay fever, as different plants release pollen at different times of the day. Piriteze Syrup may cause drowsiness. Piriteze Syrup starts working 30 minutes after taking, with the effects most notable one to two hours after taking. 

Piriteze Syrup can be used for long-term treatment of allergies. Consult your doctor or pharmacist if symptoms do not improve with the use of Piriteze Syrup. Do not take more than the recommended dose.

What are the side effects of Piriteze Syrup?

Antihistamines, including Piriteze Syrup, can cause side effects. The most common of these is drowsiness or tiredness. Do not drive or operate heavy machinery if affected. Other common side effects include headache, dizziness, restlessness, dry mouth, sore throat, abdominal pain, diarrhoea, nausea and a runny nose. Do not drive, operate heavy machinery or make any decisions that require clear cognitive function if affected. If symptoms worsen: a rash or swelling in the eyes, face, throat or mouth or have difficulty breathing or swallowing, cease use and seek immediate medical attention. Also, if your experience convulsions or loss of consciousness, hallucinating or experiencing a rapid heartbeat, seek immediate help from GP or hospital. Other possible side effects include agitation, weakness, pins and needles, itching, rash or hives, aggression, depression, weight gain, swelling, insomnia, tremors, muscle spasms and tics, distorted sense of taste, blurred visions, eye movement problems, difficulty or pain when passing urine, increased appetite, nightmares, inflammation of liver, skin eruptions, joint pain, memory loss and suicidal thoughts. Report all side effects to a doctor or pharmacist. 

Do not take Piriteze Syrup if an allergic reaction to antihistamines has ever been experienced. Always read the label. Do not take if you have an enlarged prostate. Consult your doctor or pharmacist if: you are intolerant to some sugars, if you have kidney or liver problems, are pregnant or breastfeeding, or epileptic. Talk to your doctor or pharmacist if you have kidney problems, as a lower dose may be recommended. Wait three days after taking Piriteze Syrup before having an allergy test. Use caution if you consume alcoholic beverages, as Piriteze Syrup can increase the effects of drinking. Always read the leaflet and follow the advise of the doctor or pharmacist. Consult your doctor or pharmacist before taking Piriteze Syrup if you are taking any other medications including those purchased over-the-counter and remedies.

When should I begin taking Piriteze Syrup?

You should begin to take your first dose of Piriteze Syrup in response to the initial symptoms of an allergy. This will result in the allergy being treated effectively.

Can everyone use Piriteze Syrup for the treatment of allergies?

Although Piriteze Syrup is generally safe to use, it is not suitable for everyone. You should not use Piriteze Syrup if you have any of the following:

  • Allergy to antihistamines
  • Enlarged prostate
  • Lactose intolerance
  • Intolerance to certain sugars
  • Problems with your kidney
  • Problems with your liver
  • Epileptic

Can I drink alcohol while using Piriteze Syrup for the treatment of allergies?

It is advised to avoid drinking alcohol while using Piriteze Syrup. This is because alcohol has the possibility to interfere with Piriteze Syrup and cause harmful side effects.

How should I store Piriteze Syrup?

You should store Piriteze Syrup in a cool dry place, out of reach and sight from children, and at room temperature. This product should not be exposed to extreme temperatures or direct sunlight.

What if I forget to take my dose of Piriteze Syrup?

If you forget to take your dose of Piriteze Syrup you should take it as soon as you remember, unless it is almost time for your next dose. If it is almost time for your next dose you should skip the dose you just missed and continue as normal. You should never take two doses at once, even if you are making up for a missed dose.

Like all medicines and antihistamines, after using Piriteze Syrup you are likely to experience a number of different side effects. It is important to note that not everyone experiences the same side effects, and side effects often disappear over multiple uses. Common side effects include the following:

  • Headaches
  • Dry mouth
  • Feeling drowsy
  • Feeling dizzy
  • Abdominal pains
  • Feeling tired
  • Nausea
  • Diarrhoea

If any of these side effects worsen, you should stop using Piriteze Syrup immediately and seek medical advice from a professional as soon as possible.

Always read the patient information leaflet before starting your treatment. The patient information can be  found here.

Authored by

Last reviewed 11 April 2023

Superintendent Pharmacist GPhC No.2220953

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