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Fexofenadine Tablets (120mg & 180mg)

From £8.75 See Prices

Fexofenadine is a strong antihistamine tablet containing the active ingredient, fexofenadine hydrochloride. It is used to treat symptoms of allergy, hay fever and itchy skin. It is available in 120mg and 180mg strengths. The recommended dose is one tablet daily.

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From £8.75
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Fexofenadine PRICES

Medicine x30 Tablets x60 Tablets x90 Tablets
Fexofenadine 120mg Tablets £8.75 £17.49 £25.99
Fexofenadine 180mg Tablets £13.29 £22.29 £29.99

About Fexofenadine

Key Points

  • Contains the active ingredient fexofenadine hydrochloride
  • One tablet taken daily
  • Non-drowsy hay fever tablet
  • Available as 180mg and 120mg doses


Buy Fexofenadine online

To buy Fexofenadine online through Chemist Click, you need to:

  • Fill out a consultation form that takes 5 minutes. 
  • Your questionnaire will then be reviewed by one of our in-house pharmacists.
  • Once approved, your order will be dispatched with next-day delivery options available.


What is Fexofenadine?

Fexofenadine is an effective, non-drowsy treatment for hay fever, hives (itchy skin) and other allergy symptoms. It contains the active ingredient Fexofenadine hydrochloride and is available in a tablet form. It is available in both 120mg and 180mg strengths.

Fexofenadine can be taken by adults and children, and is also sold under the brand names Allevia, Telfast and Treathay in the UK.

What is Fexofenadine used for?

Fexofenadine is used to relieve hay fever symptoms, and hives (itchy skin). Fexofenadine treats symptoms such as:

  • Itchy eyes
  • Watery eyes
  • Runny nose
  • Sneezing
  • Hives (raised, itchy skin rash)


You can also use Fexofenadine to treat symptoms of conjunctivitis, other allergies, eczema and insect stings or bites.

How does Fexofenadine work?

Fexofenadine works by blocking the action of histamine, a natural substance that the body produces when you are having an allergic reaction. Because Fexofenadine is a non-drowsy antihistamine, it is less likely to cause drowsiness than some other antihistamines. 

Fexofenadine dosage instructions

Take one tablet at the same time every day. You can take tablets with or without food.

Which dose is right for me?

Fexofenadine 120mg tablets

For hay fever and allergies, the usual dose for adults and children aged 12 and over is 120mg, once a day. Continue to use the tablets for as long as you need to.

Fexofenadine 180mg tablets

For hives, or itchy skin lasting 6 weeks or more, the usual dose for adults and children aged 12 and over is 180mg once per day.

The following nasal sprays can be used together with Fexofenadine, for maximum relief of hay fever and allergy symptoms:

Suggested reading: What dose of Fexofenadine should I take?

Fexofenadine ingredients

Active ingredient: Fexofenadine hydrochloride

Inactive ingredients: Powdered cellulose, magnesium stearate, mannitol (E421), croscarmellose sodium, maize starch, colloidal anhydrous silica, hypromellose (E464), titanium dioxide (E171), macrogol 400, allura red AC lake (E129), and iron oxide, black (E172)

Important note: The inactive ingredients may vary, depending on the manufacturer. You should read the patient information leaflet provided with your medication.

Fexofenadine side effects

Although most people do not experience side effects, they can occur.

Possible side effects include:

Common: Affecting up to 10% of users

  • Drowsiness
  • Dizziness
  • Headache
  • Nausea


Uncommon: Affecting up to 1% of users

  • Fatigue
  • Sleepiness


Unknown frequency

  • Sleeping disorders (such as bad dreams, insomnia)
  • Nervousness
  • Blurred vision
  • Changes to heartbeat (i.e. irregular or rapid heartbeat)
  • Diarrhoea
  • Skin rash or itchy skin


Seek urgent medical attention if you experience:

  • A fast or irregular heartbeat
  • Loss of consciousness
  • Signs of an allergic reaction
    • Swelling of the mouth, throat, eyes, lips, tongue, or face
    • Difficulty breathing
    • Bodily rash


Are there any long-term side effects of Fexofenadine?

There are no known long-term side effects of Fexofenadine.

Does Fexofenadine make you feel drowsy?

Although Fexofenadine is classed as a non-drowsy antihistamine, drowsiness is listed as a side effect, and it may make some people feel drowsy.

Suggested reading: What are the side effects of Fexofenadine?

Fexofenadine warnings

Fexofenadine is classified as a low-risk medication, and safe to take by most people. However, there may be instances where Fexofenadine is not suitable.

You should not take Fexofenadine if:

  • You are allergic to Fexofenadine hydrochloride, or any of the other ingredients listed in the patient information leaflet.
  • You are due to have an allergy test.


You should speak to your pharmacist or doctor about taking Fexofenadine if:

  • You have kidney or liver problems.
  • You have a history of heart problems.
  • You have epilepsy.
  • You are elderly.

Fexofenadine while pregnant

Do not take Fexofenadine if you are pregnant, unless advised by your doctor. There is limited evidence surrounding the safety of Fexofenadine in those that are pregnant.

Fexofenadine while breastfeeding

Fexofenadine is safe to take if you are breastfeeding. It does not have a sedating effect, and very tiny amounts pass into the milk.

You should always check with your doctor or pharmacist if you wish to take Fexofenadine whilst breastfeeding.

Fexofenadine interactions

Fexofenadine can interact with the following medications:

  • Other antihistamines.
  • Certain anti-cancer drugs such as apalutamide, tepotinib, vemurafenib.
  • Indigestion remedies containing aluminum and magnesium (you should leave a 2-hour gap between doses).
  • Certain antivirals - such as, velpatasvir, pibrentasvir.
  • Certain antidepressants - such as isocarboxazid, phenelzine, tranylcypromine.
  • Dronedarone – used to treat irregular heartbeat.
  • Ketoconazole – used to treat fungal infections.
  • Certain antibiotics - such as erythromycin, rifampicin.
  • Letermovir – used during stem cell transplants.
  • Teriflunomide – used to treat multiple sclerosis.
  • Certain arthritis treatments – such as leflunomide, filgotinib.
  • Grapefruit juice, orange juice and fruit juice can reduce the effectiveness of Fexofenadine.


Although Fexofenadine is safe to take with most medications, you should always inform your doctor or pharmacist of any medication you are taking, so that they can check for interactions.

Fexofenadine alternatives

There are other antihistamine tablets available, however, Fexofenadine is widely regarded as one of the most effective hay fever tablets.

Fexofenadine vs cetirizine

  • Fexofenadine and cetirizine both block the action of histamine, which is a natural substance produced by the body during an allergic reaction.
  • Fexofenadine is recognised as having the lowest risk of causing drowsiness of any antihistamine. 
  • Fexofenadine takes two hours to work, whilst cetirizine takes one hour.
  • Fexofenadine is less likely to cause drowsiness compared to cetirizine.
  • Fexofenadine is slightly more expensive than cetirizine.
  • You cannot take Fexofenadine and cetirizine together.


Fexofenadine vs loratadine

  • Fexofenadine and loratadine both block the action of histamine.
  • Fexofenadine is significantly more effective than loratadine according to scientific studies.
  • Fexofenadine takes 2 hours to work and loratadine takes 1 hour to work.
  • Fexofenadine is more expensive than loratadine.
  • Fexofenadine’s drug levels are reduced by grapefruit juice. Loratadine is not affected by grapefruit juice.
  • Fexofenadine is less likely to cause drowsiness than loratadine.


  1. NHS UK. (n.d.). Fexofenadine. Retrieved February 19, 2024, from

  2. British National Formulary. (n.d.). Fexofenadine Hydrochloride. Retrieved February 19, 2024, from

  3. Electronic Medicines Compendium. (n.d.). Fexofenadine 120mg/180mg film-coated Tablets. Retrieved February 19, 2024, from


Yes, you can buy Fexofenadine over the counter in the 120mg strength. The most common brand of Fexofenadine otc is Allevia.

Fexofenadine 180mg is available on prescription only. You can buy Fexofenadine 180mg from Chemist Click. After completing an online questionnaire, we will dispatch your medication using a next day delivery service.

Fexofenadine 180mg is used to treat chronic idiopathic urticaria (hives lasting 6 weeks or longer).

Fexofenadine 120mg is used to treat symptoms of hay fever and allergies.

It takes around 1-2 hours for Fexofenadine to work.

Only children taking Fexofenadine 30mg can take a tablet twice a day.

You cannot take more than 180mg daily.

No, anxiety is not a listed side effect.

Yes, you can safely use it over a long period of time.

You can get it on an NHS prescription from your GP. If you pay for prescriptions, it may be cheaper to buy Fexofenadine online, or from a local pharmacy.

No, you should not use more than one antihistamine per day.

If you accidentally take more than one tablet a day, you should consult your doctor or pharmacist. Fexofenadine is generally considered to be very safe and taking more than one tablet on the same day is unlikely to cause any harm. However, you should still let your doctor or pharmacist know.

You may experience symptoms such as dry mouth or drowsiness, but these side effects will pass. 

If you are taking Fexofenadine for hay fever, there is no best time to take your tablets. They have a cumulative effect which builds up over many days. As long as you are taking treatment every day, it does not matter when you take your tablets.

If you are using Fexofenadine for other allergies, or symptomatic relief, take a tablet as soon as you experience symptoms. Keep taking treatment until symptoms have settled down.

These juices reduce the effectiveness of Fexofenadine, as they cause less of the drug to enter the blood.  

The maximum dose of Fexofenadine is 180mg per day.

You should not take more than Fexofenadine 180mg in one day unless your doctor has advised you to do so. Taking more than this can result in harmful side effects.

It can take a few weeks of consistent use to feel the full benefits of treatment If you find that Fexofenadine is not working, you should speak to your doctor or pharmacist about introducing a nasal spray to help manage symptoms.

You should avoid drinking alcohol when taking Fexofenadine. A combination of the two can intensify certain side effects such as drowsiness and fatigue.

Fexofenadine does not cause weight gain.

If you experience fatigue as a side effect, this can increase your appetite. However, Fexofenadine does not directly cause you to gain weight.

Product Reviews For Fexofenadine


Overall, people who use fexofenadine have a very positive experience.

Users of fexofenadine have described its effectiveness in relieving symptoms of allergies such as hives, runny nose, stuffy nose and itchy eyes. Some reviewers commented that after trying other antihistamines, fexofenadine was the first one that worked well for them. 

Users with both seasonal and year-round allergies have reported the effectiveness of fexofenadine in relieving their allergy symptoms. Many have pointed out fexofenadine’s effectiveness in quickly relieving symptoms, claiming the medicine completely cleared up their hives outbreak, restoring their confidence once again. 

However, there were a couple of unsatisfactory reviews as some viewers shared their negative experiences with the medicine. For example, some users cited that they encountered some mild side effects, such as mouth sores and an upset stomach.

Overall, the large majority of reviewers provided positive feedback on fexofenadine, writing this product is very effective at relieving hay fever and allergy symptoms all year round. 

Aside from a few minor side effects, fexofenadine seems to be the medicine of choice for hay fever and allergies, as users have said they have consistently experienced fewer and milder reactions when taking fexofenadine. 

To find out more about what Chemist Click’s customers think of fexofenadine tablets, take a look at our fexofenadine reviews page.

Summary For Fexofenadine

Medication Class Non-drowsy antihistamine 
Mechanism of action Blocks the release of histamine
Active ingredient Fexofenadine hydrochloride
Strength 120mg, 180mg
Effective within 1-2 hours
Dosage Instructions Take one tablet daily
Manufacturer Chanel, Teva, Dr.Reddy’s, Noumed, Cipla
Use with alcohol Avoid 

See over 132 product reviews

Product rated 5/5

I swear by it but of course not suitable for everyone.

By Andy neal, 19th of July

Only been using for a couple of weeks but already noticed an improvement in my hayfever symptoms over the previous medication I used.

By Karen Naylor, 05th of July

Product working ok against hay fever

By John Lillystone, 05th of July

Ceased many of my severe Hayfever symptoms

By Sam Lawrence, 24th of June

Very Good medicine for hay fever

By Taranjit Gill, 23rd of June

See More Reviews


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