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Fexofenadine (Telfast)

Buy Fexofenadine after completing our online consultation for hay fever

Prices of Fexofenadine (cheapest)
1 month (30 tablets) (£14.99)

Prices include next-day delivery and prescription

1 month (30 tablets) £14.99
2 months (60 tablets) £24.99 Save £5
3 months (90 tablets) £34.99 Save £10

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More information about Fexofenadine

What is Fexofenadine?

Fexofenadine belongs to a group of medicines called antihistamines, which are often used to relieve symptoms of allergies. It is commonly sold under the brand names Telfast and Allevia.

However, buying generic Fexofenadine is cheaper than buying a brand name, even though both medicines are identical.

An infographic showing what symptoms Fexofenadine can treat.

Fexofenadine hydrochloride (the active ingredient) can be prescribed to patients with hay fever (allergic rhinitis) to relieve the following common symptoms:

  • sneezing
  • a runny nose
  • an itchy nose
  • teary or watery eyes
  • flushing

Hay fever is caused by outdoor allergens including pollen, but you may experience similar symptoms from dust or animal dander.

Fexofenadine can also be prescribed for the treatment of chronic hives (a raised, itchy rash that normally occurs as the result of an allergic reaction).

It is also classed as a non-drowsy antihistamine, meaning that it’s less likely to make you feel sleepy compared to other types of antihistamines.

How does it work?

Fexofenadine works by blocking the effects of histamine in the body.

Histamine naturally occurs in the body and is also found in many of the foods we eat. When the body detects a foreign substance which is seen as a threat (like pollen or dust), the immune system releases histamine as a defence mechanism.

This release of histamine causes your cells to expand and swell to protect themselves. However, this swelling also causes inflammation which leads to congestion and other hay fever symptoms.

By stopping the effects of histamine, Fexofenadine can reduce and relieve unpleasant symptoms caused by pollen or other allergens.

How effective is it?

A published evaluation Trusted source National Center for Biotechnology Information (NCBI) Government Source Biomedical Research and Literature Go to source assessed 8 different studies on Fexofenadine. Out of 3678 patients who suffered from hay fever symptoms, 1910 received treatment with Fexofenadine and 1777 received a placebo drug.

The results found that the group taking Fexofenadine showed a significant reduction in symptoms compared with the group taking the placebo.

In this review, Fexofenadine was also reported to be well-tolerated; in most patients, it did not cause drowsiness or sleepiness.

How do I take it?

You should always take medication as per your doctor’s instructions. However, a guide to taking Fexofenadine for hay fever is written below.

The recommended dose for hay fever (allergic rhinitis) is one 120 mg (or 180 mg) tablet every 24 hours. The tablet should be swallowed whole with water and can be taken before or after a meal.

Do not take more than the recommended dose as it will not further improve your symptoms. Taking more Fexofenadine than you should may result in:

  • dizziness
  • feeling drowsy
  • feeling tired
  • a dry mouth

Unless your doctor has advised you, do not combine Fexofenadine with any other kinds of antihistamine.


Fexofenadine tablets are available in two different doses:

  • 120 mg
  • 180 mg

For the treatment of hay fever, the recommended dose is one 120 mg tablet per day. However, a doctor may prescribe a higher dose if your symptoms are moderate to severe.

What are the precautions?

Before taking this hay fever medication, it’s best to consult with a doctor or online health professional. They can gain an understanding of your medical history and prescribe Fexofenadine if it’s safe to do so.

Fexofenadine should be taken with caution if:

  • you are elderly
  • you have kidney and liver problems
  • you have a history of ongoing heart disease

You should not take Fexofenadine if you are planning to have an allergy test. If you are already taking it, wait 3 days after stopping this medication before getting tested.

Other medicines

Before starting a new medicine, you must tell your doctor about any other medication you are currently taking.

The following medicines should not be taken alongside Fexofenadine as it can worsen the potential side effects:

  • an antibiotic called Erythromycin
  • a medicine used to treat fungal infections called Ketoconazole
  • medications for HIV including Lopinavir and Ritonavir

Some indigestion or heartburn medicines (containing aluminium or magnesium) can affect the way your body absorbs Fexofenadine.

It is recommended that you leave 2 hours in between taking Fexofenadine and indigestion remedies.

What are the potential side effects?

Just like any medicine, there’s a chance you’ll experience side effects while taking Fexofenadine. While it’s normal to experience them, not everyone gets them.

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

Common side effects
  • headache
  • drowsiness
  • nausea
  • dry mouth
  • dizziness

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

Uncommon side effects
  • fatigue
  • difficulty sleeping
  • nervousness
  • sleep disturbances
  • bad dreams
  • fast or irregular heartbeat

If you are worried about any side effects during your treatment with Fexofenadine, speak to a pharmacist or doctor.

How does Fexofenadine compare with other antihistamines?

Fexofenadine works very similarly to other antihistamines including Levocetirizine and Desloraditine. However, some of their differences can be found in the following comparison table:

Antihistamine tablet comparison
Fexofenadine Cetirizine Loraditine
Is it non-drowsy? Yes No Yes
How quick are the effects? Fast-acting Fast-acting Slower-acting
What’s the recommended dose? 1x 120 mg tablet daily 1x 10 mg tablet daily 1 x 10 mg tablet daily
Is it safe during pregnancy? Not recommended Not recommended Generally, yes

Can I buy Fexofenadine online?

Yes, you can buy Fexofenadine allergy tablets online for the treatment of hay fever.

Simply fill out the online questionnaire to complete your consultation. Your answers will then be reviewed by one of our registered doctors who will prescribe you Fexofenadine if it is safe to do so.

Once approved, your treatment will be sent straight to your door with free next-day delivery.

Fexofenadine info
Product name Fexofenadine / Telfast
Active ingredient(s) Fexofenadine hydrochloride
Manufacturer Teva Pharmaceuticals
Lowest price £14.99
Trustpilot rating 5/5
Trustpilot reviews 9
Availability In stock
Description Fexofenadine is a non-drowsy antihistamine that is used to treat common allergies including hay fever.
Exemption Subject to medical prescription
Administration Oral
Presentation Tablets
Available dosage(s) 120 mg
Usage 1 tablet per day (with water)
Application Adults suffering from hay fever symptoms
Drug class Antihistamine
Alcohol consumption Avoid alcohol consumption
When pregnant/breastfeeding Not recommended, ask your doctor for alternatives

Note: Decisions about treatment are for both the prescriber and the person to jointly consider during the consultation. However, the final decision will always be the prescriber’s.

Fexofenadine FAQs

Can I buy Fexofenadine over the counter?

It is possible to purchase 120 mg Fexofenadine tablets at your local pharmacy. If possible, consult a pharmacist for advice before purchasing.

It’s best to receive guidance from a professional before taking a new medicine. That way, they can double-check if the treatment is safe or if an alternative might be more suitable.

Does Fexofenadine make you drowsy?

Fexofenadine is classed as a non-drowsy antihistamine. Compared with other antihistamines, it is less likely to cause drowsiness or sleepiness. That being said, there are exceptions and there is a small chance that you may feel drowsy after taking Fexofenadine.

Can you take Fexofenadine when pregnant?

There is no evidence to suggest that taking Fexofenadine can cause birth defects during pregnancy. However, It is not generally recommended for pregnant women due to a lack of research. Consult with your doctor about taking a different kind of antihistamine.

Is Telfast the same as Fexofenadine?

Yes, the branded medication Telfast contains the active ingredient Fexofenadine hydrochloride. It works in exactly the same way as generic Fexofenadine tablets. However, Telfast tablets cost more than generic Fexofenadine tablets.

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Fexofenadine reviews
Box contains 30 film-coated tablets of Fexodenadine 120mg for oral use Excellent 5 9 patients have reviewed Fexofenadine on Trustpilot
Featured reviews review
  • Was struggling with hay-fever symptoms and no other antihistamine would help. This one gets rid of all your symptoms.

    Friend O
  • Quality medicine! Stopped symptoms of hay fever quickly, no more itching and sniffing when I take this

    Ana V
  • Fast service thank you the tablets have helped with all my hayfever symptoms. Best summer😊

    Janet P
18 May

Good service 👍🏻

05 May

Hay-fever tablets. Product as described and quick delivery.

09 Sep

Great for allergies

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Further reading

Hay fever symptoms: mild, moderate and severe

Hay fever symptoms: mild, moderate and severe

Reviewed by Dr. Caroline Fontana
Dealing with hay fever in pregnancy

Dealing with hay fever in pregnancy

Reviewed by Dr. Caroline Fontana
8 Hay fever natural remedies for quick relief

8 Hay fever natural remedies for quick relief

Reviewed by Dr. Caroline Fontana
A nutritionist’s guide to a low-histamine diet

A nutritionist’s guide to a low-histamine diet

Reviewed by Dr. Caroline Fontana
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