Piriton Syrup
  • Piriton Syrup

Piriton Syrup

Save 11% Now £3.89 Was £4.39

Medication features

  • Anti-histamine medication
  • Can cause drowsiness
  • Used for insect bites / allergies
  • Also available as Piriton tablets


Buy Piriton Syrup Online UK

You can buy Piriton in the UK from our registered online pharmacy. Please read the associated information about this medication to make sure it's safe for you. You can then place your order. 

After completing a short assessment form, our pharmacists can then review your order. If approved, dispatch the medicine to your chosen address. If for any reason your order is not approved, a full refund is issued.

What is Piriton?

Piriton is an antihistamine medication, which is used to treat symptoms of hay fever and other allergies, hives, or reactions to insect bites. You can use Piriton for children over 1 years old. It contains the active ingredient Chlorphenamine and each 5ml contains 2mg of Chlorphenamine.

How does Piriton work?

Piriton and other antihistamines work by reducing the allergic response of the body to allergens like pollen. Histamine is produced by the body when it comes into contact with these allergens. This release of histamine causes symptoms such as itchiness, redness and inflamed reactions.

By blocking histamine from working, Piriton stops these symptoms from occurring. Many people use Piriton for hayfever to block the histamine reaction to pollen.

How much Piriton can I take?

AgeDose24 Hour Max
1-2 One 2.5 ml spoonful twice daily 5mls (2mg)
2-6 One 2.5 ml spoonful every 4-6 hours 15mls (6mg)
6-12One 5 ml spoonful every 4-6 hours 30mls (12mg)
Adults One 10 ml spoonful every 4-6 hours 60mls (24mg)


Piriton is a widely used and effective antihistamine medication. However, every patient can respond differently to a medicine. If you find this medicine is not effective for you, you may want to try another antihistamine, like Piriteze tablets or prescription hay fever treatments. You can also use Piriton for kids aged over 1 years old. 

Practical Tips 

Hay fever symptoms can be improved with a few simple lifestyle tips. Pollen forecasts are available during the summertime and can be useful in determining when to avoid outside activities.

You should try to keep windows closed when the pollen count is high. Ideally, you should shower and change clothes after being outdoors to avoid bringing pollen indoors. Wearing wraparound sunglasses can help to improve symptoms like itchy, watery eyes.


Other alternative antihistamine treatments are available at Simple Online Pharmacy. These include:


How quickly does Piriton work?

It should start to work quickly, within around 30-45 minutes of taking a dose. 

Can you take Piriton when pregnant/breastfeeding?

You should not take this medicine if you are pregnant or breastfeeding unless on a doctor’s advice.

Can I drink alcohol if I take Piriton liquid?

You should avoid alcohol if you are taking Piriton. Taking both together can increase the likelihood of becoming drowsy and sleepy.

Does Piriton make you sleepy?

The most common side effect is drowsiness and sedation. More than 1 in 10 people may experience this side effect. Most antihistamine medicines can cause you to feel sleepy. However, some, like loratadine or fexofenadine, are less likely to make you feel drowsy than others.

Can you buy Piriton over the counter?

You can buy it over the counter at a pharmacy. This medicine is a ‘Pharmacy medicine’. This means it needs to be sold by a pharmacist who will check it’s safe for you to have. 

You can also buy Piriton online from UK registered pharmacies like Simple Online Pharmacy. Our pharmacists will check every order to make sure it’s safe and suitable to dispense.

Side Effects

Piriton Side Effects

While not everyone will experience side effects, it's important to be aware of these, in case you need to report them. 

The most common side effect is feeling drowsy, which affects more than 1 in 10 people. If you experience this side effect, you should not drive or operate machinery.

Other possible side effects include dry mouth, blurred vision, headache, nausea, and fatigue. If you experience any side effects, contact your doctor or pharmacist for advice. For a full list of side effects, see section 4 of the patient information leaflet.

Info Leaflet

Please read the patient information leaflet for further information


How to take Piriton Syrup

The Piriton dosage is different for different ages.

For 1-2 year-olds:

  • Give ONE 2.5ml spoonful twice a day (Maximum of 5mls can be given in 24 hours)

For 2-6 year-olds:

  • Give ONE 2.5ml spoonful every 4-6 hours (Maximum of 15mls can be given in 24 hours)

For 6-12 year-olds:

  • Give ONE 5ml spoonful every 4-6 hours (Maximum of 30mls can be given in 24 hours)

For Adults and children over 12 years:

  • Give ONE 10ml spoonful every 4-6 hours (Maximum of 60mls can be given in 24 hours)



Piriton Cautions

  • Do NOT give/take more than the recommended dose
  • Do NOT give to children under 12 months
  • Do NOT take if you have ever had an allergic reaction to any antihistamines
  • Do NOT take if you are allergic to any of the ingredients in Piriton Syrup
  • Do NOT take if you have taken MAOIs for depression in the last 14 days
  • Do NOT take if you are taking any other products containing anti-histamines
  • Do NOT drink alcohol with this medicine
  • This medicine can cause drowsiness, if it does then you should not drive or operate machinery



Piriton Ingredients

Piriton active ingredient: Chlorphenamine Maleate 

Other ingredients: Sucrose, glycerol, ethanol, tingle flavour, peppermint oil, water and, as a preservative, a mixture of methyl, ethyl and propyl hydroxybenzoates (E 218, E 214 and E 216).

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