Skip to product information
1 of 1

  • Images are for illustration purposes only

Clarityn Allergy Relief 10mg

Clarityn Allergy Relief 10mg

  • 1. Ozempic®️-equivalent therapy now available for weight management
  • 2. Average weight loss of 17%, with 1 in 3 patients achieving over 20%
  • 3. May help reduce osteoarthritis-related pain
  • 4. Wegovy®️ is not expected to impact the effectiveness of oral contraceptives
  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Relieves hay fever sneezing, itching, and runny nose
  • ✔️ Non-drowsy formula — safe for daytime use
  • ✔️ Once-daily 10mg loratadine tablet for convenience
  • ✔️ Effective for both seasonal and year-round allergies
  • ✔️ Suitable for adults and children aged 6 and over

Price Checker

Regular price £2.99
Sale price £2.99
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription
View full details

 

What Are Loratadine 10mg Tablets Used For?

 

If sneezing fits, a constantly runny nose, or itchy, watering eyes are making your day miserable, you are not alone. Hay fever affects around one in five people in the UK, and allergic reactions to dust mites, pet dander, and mould can strike at any time of year. Loratadine 10mg tablets — the active ingredient in Clarityn Allergy Relief 10mg — offer reliable, once-daily relief from these symptoms without the heavy, foggy feeling that older antihistamines can cause. You can browse our full range of allergy and hay fever treatments to find the right option for your needs.

Clarityn Allergy Relief 10mg is an over-the-counter medicine, meaning you do not need a prescription to buy it. Each tablet contains 10mg of loratadine, a second-generation antihistamine licensed in the UK for the relief of allergic rhinitis (hay fever) and chronic idiopathic urticaria (hives). It is suitable for adults and children aged 6 years and over.

 

How Does Clarityn Allergy Relief 10mg Work?

 

Loratadine works by selectively blocking peripheral H1 histamine receptors. When your immune system encounters an allergen — pollen, pet hair, dust — it releases histamine, a chemical that triggers the familiar cascade of allergy symptoms. By occupying those receptors before histamine can bind to them, loratadine effectively interrupts that process.

  • Allergen enters the body and triggers mast cell degranulation
  • Histamine is released and seeks out H1 receptors in the nose, eyes, and skin
  • Loratadine binds to H1 receptors, blocking histamine from attaching
  • Allergy symptoms — sneezing, itching, watering eyes — are reduced or prevented
  • Because loratadine crosses the blood-brain barrier poorly, sedation is minimal

The result is meaningful symptom control that lets you get on with your day. Most people notice an effect within one to three hours of taking a tablet.

 

Who Is Clarityn Allergy Relief 10mg Suitable For?

 

This medicine is designed for people who experience allergic symptoms and want effective relief without sedation. It is particularly useful if you drive, operate machinery, or need to stay alert at work. That said, it is not right for everyone — always read the label carefully.

  • Adults aged 18 and over with hay fever or perennial allergic rhinitis
  • Children aged 6 to 17 years (under medical supervision for younger children)
  • People with allergic skin reactions such as hives (urticaria)
  • Those who have experienced drowsiness with older antihistamines like chlorphenamine

 

How Does Clarityn Compare to Other Antihistamines?

 

Feature Clarityn Allergy Relief 10mg (Loratadine) Cetirizine 10mg
Active ingredient Loratadine 10mg Cetirizine hydrochloride 10mg
Dosing frequency Once daily Once daily
Sedation risk Very low Low (slightly higher than loratadine)
Suitable age 6 years and over 6 years and over
UK classification General Sale / Pharmacy General Sale / Pharmacy

 

How Should You Store Clarityn Allergy Relief 10mg?

 

Store your tablets below 25°C in a dry place, away from direct sunlight. Keep them in the original packaging and out of reach of children. Do not use the tablets after the expiry date printed on the pack — if in doubt, return them to your pharmacy for safe disposal. If you are managing multiple allergy symptoms, you might also find our eye care range helpful for itchy or watering eyes alongside your loratadine 10mg tablets.

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.

Clarityn Allergy Relief 10mg specifications
Treatment category Allergy & Hay Fever
Active ingredient Loratadine 10mg
Mechanism of action Selective peripheral H1 histamine receptor antagonist
Effective for Allergic rhinitis (hay fever), chronic idiopathic urticaria (hives)
Suitable for Adults and children aged 6 years and over
Strengths 10mg
UK classification General Sale Medicine / Pharmacy Medicine
Drug class Second-generation antihistamine
Preparation Film-coated tablet
Route of administration Oral

Specifications of Clarityn Allergy Relief 10mg

 

What Is Clarityn Allergy Relief 10mg and What Is It Used For?

 

Clarityn Allergy Relief 10mg is an antihistamine medicine containing loratadine. It is used to relieve the symptoms of hay fever (seasonal allergic rhinitis), year-round allergies (perennial allergic rhinitis), and allergic skin conditions such as hives (urticaria). Symptoms it can help with include sneezing, a blocked or runny nose, itchy or watering eyes, and itchy skin or rashes. According to the NHS, antihistamines are one of the main treatments for hay fever and can be taken as needed or regularly during allergy season.

 

What Do You Need to Know Before Using Clarityn Allergy Relief 10mg?

 

Before taking this medicine, make sure it is appropriate for you. There are certain situations where you should not take it, and others where you should seek advice first.

Do not take Clarityn Allergy Relief 10mg if you:

  • Are allergic to loratadine or any other ingredient in the tablet
  • Are under 6 years of age
  • Have been told by a doctor that you have a rare hereditary problem with galactose intolerance

Speak to your doctor or pharmacist before taking if you:

  • Have severe liver disease or impairment
  • Have kidney problems
  • Are pregnant or breastfeeding — the NHS advises caution with antihistamines during pregnancy
  • Are taking any other medicines, including herbal remedies

Known drug interactions — tell your pharmacist if you are taking:

  • Cimetidine (for indigestion or stomach ulcers)
  • Erythromycin (an antibiotic)
  • Ketoconazole (an antifungal medicine)
  • Any medicines that cause drowsiness, as effects may be additive

 

How Should You Use Clarityn Allergy Relief 10mg?

 

Always take this medicine exactly as described in the patient information leaflet or as directed by your pharmacist. Do not exceed the stated dose.

  1. Remove one tablet from the blister pack
  2. Swallow the tablet whole with a glass of water
  3. Take with or without food — it does not matter
  4. Take once daily, at the same time each day if possible
  5. Do not take more than one tablet in 24 hours
Age Group Dose Frequency
Adults and children aged 12 and over One 10mg tablet Once daily
Children aged 6–11 years (body weight over 30kg) One 10mg tablet Once daily
Children aged 6–11 years (body weight 30kg or under) 5mg (half tablet or syrup formulation) Once daily
Children under 6 years Not recommended

If you are managing seasonal allergies alongside other conditions, you might find it useful to explore our ear, nose and throat range for additional symptom relief options.

 

What Are the Possible Side Effects of Clarityn Allergy Relief 10mg?

 

Like all medicines, loratadine 10mg tablets can cause side effects, although not everyone gets them. Most side effects are mild and resolve on their own.

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

  • Headache
  • Feeling tired or drowsy (less common than with older antihistamines)
  • Dry mouth
  • Nausea

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

  • Dizziness
  • Increased appetite
  • Difficulty sleeping (insomnia)
  • Nervousness (particularly in children)
  • Stomach pain

Stop taking the tablets and seek immediate medical attention if you develop signs of a serious allergic reaction, such as swelling of the face, lips, tongue or throat, difficulty breathing, or a severe skin rash. This is rare but requires urgent attention.

 

How Should You Store Clarityn Allergy Relief 10mg?

 

  • Store below 25°C in a dry place
  • Keep away from direct sunlight and moisture
  • Store in the original blister packaging
  • Keep out of the sight and reach of children
  • Do not use after the expiry date printed on the pack
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy

If you are also dealing with skin-related allergy symptoms such as hives or rashes, our skin care collection includes a range of soothing topical options to complement your antihistamine treatment.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Clarityn Allergy Relief 10mg online in the UK?

You can buy Clarityn Allergy Relief 10mg directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £2.99. No prescription is needed as it is an over-the-counter medicine. Simply add it to your basket and it will be dispatched quickly to your door. You can also browse our full allergy and hay fever collection for related products.

How does loratadine 10mg work in the body?

Loratadine is a second-generation antihistamine that selectively blocks peripheral H1 histamine receptors. When your body encounters an allergen, it releases histamine — loratadine prevents histamine from binding to those receptors, stopping the chain reaction that causes sneezing, itching, and a runny nose. Because it crosses the blood-brain barrier poorly, it is far less likely to cause drowsiness than first-generation antihistamines like chlorphenamine.

How do I take Clarityn Allergy Relief 10mg step by step?

Take one 10mg tablet once daily, swallowed whole with a glass of water. You can take it with or without food — whichever suits you. Do not take more than one tablet in any 24-hour period, and always read the patient information leaflet before starting treatment.

What is the best time of day to take Clarityn Allergy Relief 10mg?

There is no strict requirement on timing — you can take Clarityn at any time of day that suits your routine. Many people prefer to take it in the morning so that symptom relief is in place throughout the day, particularly during high pollen periods. Taking it at the same time each day helps you remember your dose consistently.

What are the side effects of Clarityn Allergy Relief 10mg and how do I manage them?

The most common side effects include headache, dry mouth, and mild fatigue. These are generally mild and often resolve without any action needed. Staying well hydrated can help with dry mouth, and if headaches persist, speak to your pharmacist about whether an alternative antihistamine might suit you better.

Who is eligible to take Clarityn Allergy Relief 10mg?

Clarityn Allergy Relief 10mg is suitable for adults and children aged 6 years and over. It is particularly well suited to people who need to stay alert — such as drivers or those operating machinery — because it is classed as non-drowsy. People with severe liver disease, those who are pregnant, or those taking interacting medicines should speak to a pharmacist or GP before use.

What happens if I miss a dose of Clarityn Allergy Relief 10mg?

If you forget to take your tablet, take it as soon as you remember — unless it is nearly time for your next scheduled dose. In that case, simply skip the missed dose and continue as normal. Never take two tablets at once to compensate for a missed dose, as this will not improve symptom relief and may increase the risk of side effects.

Can I take Clarityn Allergy Relief 10mg if I am pregnant or breastfeeding?

The NHS advises caution with antihistamines during pregnancy, and loratadine is generally considered one of the safer options if treatment is necessary. However, you should always speak to your GP or midwife before taking any medicine during pregnancy or while breastfeeding. Do not self-medicate without professional guidance during these periods.

What are the alternatives to Clarityn Allergy Relief 10mg?

Common alternatives include cetirizine 10mg and fexofenadine 120mg, both of which are second-generation antihistamines available over the counter in the UK. Cetirizine is similarly priced and effective, though it carries a slightly higher risk of mild sedation in some people. Your pharmacist can help you choose the most appropriate option based on your symptoms and medical history.

How long can you take Clarityn Allergy Relief 10mg for?

For seasonal hay fever, you can take Clarityn throughout the pollen season — typically spring and summer in the UK. For year-round allergies or chronic urticaria, longer-term use may be appropriate, but you should review this with your GP or pharmacist if you have been taking it continuously for more than a few weeks. Do not exceed the recommended dose at any point.

Is Clarityn Allergy Relief 10mg safe to take with other medicines?

Loratadine can interact with certain medicines, including cimetidine, erythromycin, and ketoconazole, which may increase loratadine levels in the blood. Always tell your pharmacist about all medicines you are taking — including herbal remedies and supplements — before starting Clarityn. If you take medicines that cause drowsiness, combining them with loratadine may increase sedative effects.

Can children take Clarityn Allergy Relief 10mg?

Yes, Clarityn Allergy Relief 10mg is suitable for children aged 6 and over. Children weighing more than 30kg can take a full 10mg tablet once daily, while those weighing 30kg or under should take a 5mg dose — a half tablet or a loratadine syrup formulation may be more appropriate. Always check with a pharmacist if you are unsure about the correct dose for your child.

Does Clarityn Allergy Relief 10mg cause drowsiness?

Clarityn is classified as a non-drowsy antihistamine because loratadine has a low affinity for crossing the blood-brain barrier. The vast majority of people can take it without feeling sleepy, which makes it suitable for use during the working day. A small number of individuals may still experience mild fatigue — if this happens to you, try taking it in the evening instead.

What are the latest studies on loratadine for hay fever?

Loratadine has been extensively studied since its introduction and remains one of the most widely recommended antihistamines in clinical guidelines. Research consistently confirms its efficacy in reducing nasal and ocular allergy symptoms with a favourable safety profile. The NHS and NICE continue to recommend second-generation antihistamines like loratadine as first-line treatment for allergic rhinitis. You can also explore our cold and flu range if you are unsure whether your symptoms are allergy-related or viral.

Can I drink alcohol while taking Clarityn Allergy Relief 10mg?

While loratadine is far less sedating than older antihistamines, the patient information leaflet advises caution with alcohol, as it may enhance any sedative effect. It is sensible to avoid drinking heavily while taking any antihistamine. If you are unsure, speak to your pharmacist for personalised advice before combining alcohol with this medicine.

How Should You Use Clarityn Allergy Relief 10mg?

Using Clarityn Allergy Relief 10mg correctly ensures you get the most from your treatment. Always swallow the tablet whole — do not crush or chew it — and take it with a full glass of water. Follow these steps each time you take a dose:

If you are giving this medicine to a child, check their weight first to confirm the correct dose. Children weighing 30kg or under may need a lower dose — a pharmacist can advise you on the most suitable formulation.

What Is the Correct Dose of Clarityn Allergy Relief 10mg?

The dose depends on age and, for younger children, body weight. Never exceed the recommended dose, and always refer to the patient information leaflet if you are unsure.

If you have kidney or liver problems, your doctor may recommend a lower dose or less frequent dosing. Always follow their guidance over the standard instructions.

When Is the Best Time to Use Clarityn Allergy Relief 10mg?

Clarityn can be taken at any time of day — morning, afternoon, or evening — as it does not cause significant drowsiness in most people. Many people find that taking it first thing in the morning means their allergy symptoms are well controlled throughout the day, particularly during high pollen counts. If you find you experience any mild fatigue after taking it, switching to an evening dose is a simple solution. Consistency matters more than timing, so try to take it at roughly the same time each day to maintain steady levels in your system.

How Long Can You Use Clarityn Allergy Relief 10mg For?

For seasonal hay fever, you can take Clarityn throughout the relevant pollen season — typically March to September in the UK, though this varies by pollen type. For perennial (year-round) allergies or chronic urticaria, longer-term use may be appropriate under the guidance of your GP or pharmacist. If your symptoms have not improved after a few weeks of regular use, or if they worsen, seek medical advice rather than continuing to self-treat. Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

What Are the Most Common Side Effects of Clarityn Allergy Relief 10mg?

Most people tolerate Clarityn Allergy Relief 10mg very well. Because loratadine is a second-generation antihistamine, it is significantly less likely to cause drowsiness than older medicines in this class. That said, side effects can still occur in some people, and it is worth knowing what to look out for.

  • Headache
  • Dry mouth
  • Feeling tired or fatigued
  • Nausea

What Are the Less Common Side Effects of Clarityn Allergy Relief 10mg?

Less common side effects affect fewer people but are still worth being aware of. If any of the following persist or bother you, speak to your pharmacist — they may be able to suggest a simple adjustment or an alternative treatment.

  • Dizziness
  • Difficulty sleeping (insomnia)
  • Increased appetite
  • Stomach pain or discomfort
  • Nervousness or excitability (more commonly reported in children)
  • Palpitations (awareness of your heartbeat)

What Are the Serious Side Effects of Clarityn Allergy Relief 10mg?

Serious side effects from loratadine are rare, but they do require prompt medical attention if they occur. Stop taking the tablets immediately and call 999 or go to your nearest A&E if you experience any of the following signs of a severe allergic reaction (anaphylaxis):

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Severe skin rash, blistering, or peeling
  • Rapid or irregular heartbeat
  • Sudden dizziness or collapse

These reactions are uncommon, but they are a medical emergency. Do not wait to see if symptoms improve on their own.

What Should You Do If You Experience Side Effects of Clarityn Allergy Relief 10mg?

For mild side effects such as headache or dry mouth, these often resolve on their own within a day or two as your body adjusts. Drinking plenty of water can help with dry mouth. If side effects are persistent, troublesome, or unexpected, contact your pharmacist or GP for advice. You can also report side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk — this helps improve medicine safety for everyone.

Can Clarityn Allergy Relief 10mg Interact With Other Medicines?

Yes, loratadine can interact with certain medicines, which may affect how it works or increase the risk of side effects. Always tell your pharmacist or doctor about everything you are taking before starting Clarityn, including prescription medicines, over-the-counter products, and herbal supplements. Known interactions include:

  • Cimetidine (used for indigestion) — may increase loratadine blood levels
  • Erythromycin (antibiotic) — may increase loratadine blood levels
  • Ketoconazole (antifungal) — may increase loratadine blood levels
  • Medicines that cause drowsiness — combined use may enhance sedative effects
  • Alcohol — may enhance any sedative effect, even though loratadine is non-drowsy

If you are concerned about any side effects, contact your pharmacist or GP immediately.

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

We’re a safe and
regulated UK service

Registered Pharmacy Badge

Lowest Price Guarantee

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

100% discreet packaging

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

Agent

Need help?
Talk to our friendly experts now

How our service works

Service Setup

Service setup

Discreet Packaging

Discreet packaging

Express Delivery

Express delivery