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Overview

When hayfever or allergies flare up, the constant sneezing, itchy eyes, and blocked nose can make even simple daily tasks a struggle. Clarityn 10mg tablets provide powerful, non-drowsy relief that lasts all day — helping you stay focused, comfortable, and free to enjoy life without allergies getting in the way. Trusted for decades, Clarityn is one of the UK’s most popular antihistamines for fast, reliable relief.

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


What is Clarityn


Clarityn contains loratadine, a modern second-generation antihistamine that blocks histamine — the chemical behind common allergy symptoms like sneezing, runny nose, itchy eyes, and skin irritation.

It’s widely used to relieve seasonal hay fever (allergic rhinitis), year-round allergies triggered by dust, pets, or mould, and skin reactions such as hives (urticaria).

Clarityn starts working within 1–2 hours and provides up to 24 hours of protection from a single dose. Because it’s non-drowsy for most people, it’s suitable for daytime use, allowing you to stay clear-headed and get on with your day. With a proven safety record and years of trusted use, Clarityn is a reliable choice for effective allergy relief.

Directions

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

Side Effects

Like all medicines, Clarityn (loratadine) can cause side effects, although not everyone will experience them. Most are mild, short-lived, and improve as your body adjusts.

 

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

  • Headache – mild headaches are fairly common and can usually be managed with hydration, rest, or simple pain relief if needed.
  • Sleepiness – although loratadine is generally 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.
  • Dry mouth – you may notice a dry or uncomfortable feeling in your mouth. Drinking plenty of water or chewing sugar-free gum can help.
  • Fatigue – some people may feel more tired than usual while taking Clarityn. This effect is usually mild and temporary.

 

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

  • Stomach upset – occasional abdominal discomfort may occur but usually passes quickly.
  • Nervousness – a small number of people may feel restless, anxious, or jittery.
  • Skin rash – mild rashes may appear in some cases, but they usually resolve on their own.

 

Rare but serious (seek urgent medical help):

  • Severe allergic reaction (anaphylaxis) – symptoms may include swelling of the face, lips, tongue or throat, difficulty breathing, or a sudden rash. This is very rare but requires immediate medical attention.

Most people tolerate Clarityn (loratadine) well, and side effects (if they do occur) are generally mild and temporary. If you are concerned about any 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

Clarityn may not be suitable if you:

  • Are allergic to loratadine or any of the ingredients
  • Have severe liver problems (dose adjustments may be required)
  • Are pregnant or breastfeeding (only use if advised by your prescriber)

FAQ's

Is Clarityn the same as Loratadine?
Yes — Clarityn is the branded version of loratadine. They contain the same active ingredient and work in the same way.

Does Clarityn make you sleepy?
It is generally non-drowsy, but a small number of people may still feel mild sleepiness.

How quickly does Clarityn work?
Relief usually begins within 1–2 hours and lasts for a full 24 hours.

Can I take Clarityn every day?
Yes, it is suitable for daily use during allergy season or for ongoing allergies.

Can children take Clarityn?
Yes — doses may be adjusted for children under 12. Always follow prescriber guidance.

Can I drink alcohol while taking Clarityn?
Alcohol may increase the risk of drowsiness, so it’s best to avoid drinking.