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Piriton Syrup 150ml

Piriton Syrup 150ml

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Piriton Syrup 150ml for Allergy Relief

 

What is Chlorphenamine Maleate Syrup?

 

This liquid medicine contains chlorphenamine maleate, an antihistamine that helps control allergic reactions. You can use it to treat symptoms caused by hay fever, pet allergies, dust mites, and other common allergens. The syrup formulation makes it easier to swallow than tablets, particularly for those who have difficulty with solid medicines.

Chlorphenamine works by blocking histamine receptors in your body. When you encounter an allergen, your immune system releases histamine, which causes the uncomfortable symptoms you experience. By preventing histamine from binding to its receptors, this medicine reduces sneezing, runny nose, watery eyes, and itching.

How Does This Antihistamine Work?

 

The active ingredient belongs to a group of medicines called first-generation antihistamines. These medicines cross into your brain more readily than newer antihistamines, which is why they can cause drowsiness. However, this also means they can be effective for symptoms that newer antihistamines might not control as well.

You may find this medicine particularly helpful if you need relief from multiple allergy symptoms at once. It can address both the physical symptoms like sneezing and runny nose, as well as the itching and irritation that often accompany allergic reactions. For comprehensive allergy management, you might also want to explore our allergy and hay fever collection for additional treatment options.

Who Can Take This Medicine?

 

Adults and children over 12 years can typically use this medicine, though you should always check the packaging for specific age recommendations. The syrup format makes it suitable for people who prefer liquid medicines or have trouble swallowing tablets.

You should not take this medicine if you have certain medical conditions or take specific medications. The following situations require particular caution:

  • Pregnancy or breastfeeding without medical advice
  • Severe liver or kidney problems
  • Glaucoma or enlarged prostate
  • Taking monoamine oxidase inhibitors (MAOIs)

When to Use Piriton Syrup

 

You can take this medicine when you experience allergy symptoms such as sneezing, runny or blocked nose, watery or itchy eyes, and skin reactions like hives or itching. It works well for seasonal allergies during spring and summer months when pollen counts are high.

The medicine typically starts working within 30 to 60 minutes of taking it. The effects usually last for 4 to 6 hours, which is why you may need to take it several times throughout the day for continuous relief.

Storage and Handling Instructions

 

Store the syrup at room temperature, away from direct sunlight and heat. Keep the bottle tightly closed when not in use to maintain the medicine's effectiveness. Do not store it in the bathroom or kitchen where humidity and temperature changes could affect the medicine.

Always keep this medicine out of reach of children. Check the expiry date before use and do not use the medicine after this date. If you notice any changes in colour, smell, or consistency, do not use the medicine and consult your pharmacist.

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.

 

Recommended Dosage for Adults and Children

Always read the patient information leaflet carefully before taking this medicine. The dosage will depend on your age and the severity of your symptoms. Take the medicine with or without food, though taking it with food may help reduce any stomach upset.

Use the measuring spoon or cup provided with the medicine to ensure you take the correct amount. Do not use household spoons as they may not give you the right dose. If you forget to take a dose, take it as soon as you remember unless it is nearly time for your next dose.

Important Administration Guidelines

Do not exceed the recommended dose stated on the packaging. Taking more than the recommended amount will not provide better relief and may increase the risk of side effects. If your symptoms do not improve after a few days of treatment, consult your doctor or pharmacist.

You should not take this medicine for more than seven consecutive days without medical advice. If you need long-term treatment for chronic allergies, your doctor may recommend a different approach or monitor your treatment more closely.

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Possible Side Effects and Safety Information

Like all medicines, Piriton Syrup 150ml can have side effects, although not everyone will experience them. Most people tolerate this medicine well, but you should be aware of potential reactions. If you experience any concerning symptoms while taking this medicine, you can find additional support through our first aid collection for managing minor health concerns.

The most common side effect is drowsiness, which affects many people taking this type of antihistamine. You may also experience dry mouth or mild dizziness, particularly when you first start taking the medicine.

Other side effects that may occur include:

  • Headache or feeling tired
  • Blurred vision or difficulty focusing
  • Nausea or stomach upset
  • Constipation or difficulty passing urine
  • Loss of appetite
  • Confusion or difficulty concentrating
  • Skin rash or allergic reactions
  • Increased heart rate
  • Muscle weakness or tremor
  • Sleep disturbances or vivid dreams
  • Coordination problems
  • Mood changes or irritability

If you experience these or any other side effects, speak to your doctor or pharmacist right away. For more information about reporting side effects please see the MHRA Yellow Card Scheme.

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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