Telfast (fexofenadine)

Package Type
30 Pills
30 Pills
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How to order
  1. Click on the green "continue to medical questions" button.
  2. Fill in our short consultation form.
  3. Choose delivery method and mode of payment.
  4. Our team of expert prescribers will assess whether medication is suitable.
  5. If you get the green light and it is deemed suitable, your order will be processed quickly and efficiently.
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This is why we also take steps to conceal your prescription products under two layers of packaging.

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Do I Need to Wait in All Day for Delivery?

Once your order is dispatched you will receive a tracking number via sms and email.

Do You Deliver on Weekends?

We deliver medications between Monday and Saturday. You can upgrade to Saturday delivery on Friday.

My Order Hasn’t Arrived What Should I Do?

You should receive a tracking number with your order which you can use this number to track your parcel online. This should give you a clear indication of where your parcel is. If you haven’t received your parcel in the time frame given by our couriers, contact your local depot to find out where it is. You can also contact our support team who will do this for you.

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On checkout you will be asked to leave your mobile number so our courier can text you about the delivery. This is also useful if the courier has problems finding your address. We will not use your mobile number for anything else.

Payment Methods
How Can I Pay for My Order?

You can pay for your order using credit, debit card or via bank transfer.

I Don’t Have a Credit Card, How Can I Pay?

If you don’t have a credit or debit card you can pay via bank transfer. We will give you a unique reference number at checkout along with details of how to make the transfer. Once the money has cleared in our account, we will process your order.

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Payment and refunds?

You can pay for your order using credit, debit card and bank transfer.

Card Payment: Please notify us that you wish to cancel your order. Your refund will show available In 1 - 3 days.

Bank Transfer: A member of our team will contact you requesting for your bank details. These details are only used to transfer the funds back into your account.

About Product
This content has been written and checked for quality and accuracy by
Mohamed Imran Lakhi Content Administrator GPhC: 2060586 Updated on: 20/02/2020 Next review: 20/08/2020

Buy Telfast online

Telfast (Fexofenadine) is a prescription-only, non-sedating antihistamine which is used to treat allergic rhinitis (hay fever) in adults. This medication is available in 120 mg or 180 mg tablets.

You can buy Telfast online from Prescription Doctor following a short consultation with one of our doctor's. If your order is approved before 3pm, Mon to Fri, our UK based pharmacy can dispense and dispatch your medicine the same day, aimed for a next day delivery.

What is Hay Fever?

Allergic reactions like hay fever happen when the immune system erroneously determines something harmless is dangerous. For hay fever, this substance is an airborne allergen such as pollen from grass or trees. The immune system responds by releasing a chemical called histamine. The histamine causes cold-like symptoms such as red, itchy eyes, a runny nose, or a skin rash.

Telfast treats seasonal hay fever which is caused by triggers such as:

  • Tree pollen
  • Grass pollen
  • Ragweed pollen
  • Outdoor fungi or mould

Telfast is not the right choice for year-round allergies from common indoor triggers like pet dander.

Seasonal hay fever interferes with daily activities and disrupts sleep. It is essential that you talk to your doctor about your symptoms and treatment options. It can also exacerbate other conditions such as asthma or chronic obstructive pulmonary disease (COPD). Left untreated, seasonal allergic rhinitis can lead to complications such as sinusitis, an infection and inflammation in the sinus cavities or otitis media, or an ear infection.

How does Telfast work?

Telfast contains fexofenadine hydrochloride, a non-sedating (non-drowsy) antihistamine that works to counter the effects of a chemical produced in the body called histamine. The medication acts on the histamine receptors to prevent the histamine from producing common symptoms of hay fever. It typically works within 30 minutes to an hour after taking the medication and lasts 24 hours.

How do I take/use Telfast?

Follow your doctor's instruction for taking Telfast.

The typical dose is one tablet per day (120 mg or 180 mg). Swallow the tablet whole with a full glass of water before a meal.

Telfast side effects and cautions


Do not use Telfast if you are allergic to:

  • Fexofenadine hydrochloride
  • Microcrystalline cellulose
  • Pregelatinised
  • Maize starch
  • Croscamellose sodium
  • Magnesium stearate
  • Hypromellose
  • Povidone K30
  • Titanium dioxide (E171)
  • Colloidal anhydrous silica
  • Macrogol 44
  • Red iron oxide (E172)
  • Yellow iron oxide (E172)

If you experience an allergic reaction from taking Telfast, notify your doctor as soon as possible.


Telfast may not be suitable for you. Speak to your doctor or pharmacist if you are unsure whether it is safe for you to take Telfast.

Speak to your doctor before using Telfast if you:

  • Have problems with your liver or kidneys
  • Have or have had heart disease. Telfast can cause an irregular heartbeat.
  • Are elderly

If you are pregnant, planning to become pregnant or breastfeeding, do not use Telfast until you speak to your doctor or pharmacist. Do not take Telfast if pregnant unless under doctor's orders. Telfast is not right for women who are breastfeeding. The medicine may be passed to the infant in breast milk.

Tell your doctor if you are taking any other medication including over-the-counter products or herbal treatments. Certain indigestion medications containing aluminium and magnesium can lower the amount of Telfast absorbed. Take this medication two hours before or after taking Telfast.

Side effects

All medicines have the potential of causing side effects, though not everybody gets them. Understanding the risks associated with your medicine is important to your care. We encourage you to familiarise yourself with the patient information leaflet which comes enclosed with your medicine before beginning treatment.

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

  • Headache
  • Drowsiness
  • Nausea
  • Dizziness

Uncommon side effects (may affect 1 in 100 people)

  • Sleepiness or tiredness

This is not an exhaustive list of side effects. For further information regarding the safety of this medicine, please read the patient information leaflet enclosed with the medicine.

Reporting side effects

Report any side effects to your doctor or pharmacist. You can use the NHS' Find A Pharmacy service to find your nearest pharmacy. If experiencing irregular heartbeat or signs of a serious allergic reaction go to the hospital casualty ward.


Check the expiration date of Telfast before using it. If expired, do not discard the medication in waste water or household waste. Take any unused medicine to your pharmacist for them to dispose of it safely on your behalf.

Always keep Telfast and all medications out of the sight and reach of children and pets.

Never share your medicine with anyone else, even if they have the same condition or are experiencing the same symptoms as you.

Frequently asked questions

What should I do if I forget to take Telfast at the right time?

If you miss a dose, skip it and take the next one at the usual time. Do not double up on doses in an attempt to make up the missed one.

What should I do if I take too much Telfast?

Taking too much Telfast can lead to potentially serious complications. Call your doctor immediately or go to the hospital if you accidentally take too much Telfast.

Symptoms of an overdose include:

  • Dizziness
  • Drowsiness
  • Fatigue
  • Dry mouth

Can I drink alcohol while taking Telfast?

Alcohol can increase your chances of experiencing side effects like fatigue or drowsiness. Avoid or limit your alcohol consumption while on this medication. Alcohol may also worsen the symptoms of hay fever.

Will Telfast impact my ability to drive or operate machinery?

It is unlikely that Telfast will affect your ability to drive or operate machinery. You should not drive or operate machinery until you know how the medication will affect you.

Can I buy Telfast (fexofenadine) over-the-counter in the UK?

Telfast is only available on prescription. It cannot be bought over-the-counter from pharmacies or supermarkets. You can buy Telfast online following a consultation with one of our doctors.

Table of contents

Buy Telfast online

What is hay fever?

How does Telfast work?

How to take Telfast

Telfast side effects and cautions

Frequently asked questions

Treatment information

  • Product Name: Telfast
  • Manufacturer: Sanofi
  • Active Ingredient(s): Fexofenadine hydrochloride
  • Administration: Oral
  • Presentation: Tablets
  • Available Strength: 120 mg or 180 mg
  • Exemption: Prescription-only
  • Application: Men and women over 18+
  • Dosage: Take one tablet daily.
  • Description: Telfast is an oral antihistamine which prevents the symptoms of allergic rhinitis
  • Drug Class: Antihistamine
  • Alcohol Consumption: Avoid or limit alcohol consumption
  • When Pregnant: Speak to your doctor before taking Telfast if you are pregnant
  • When Breastfeeding: Speak to your doctor before taking Telfast if you are breastfeeding
Click here to view the Telfast (fexofenadine) - Patient Information Leaflet

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