On this page

Telfast (Fexofenadine)

Pack of Telfast hay fever tablets
On this page

Telfast is a medication that’s used to treat allergic rhinitis. Hay fever is a common type of allergic rhinitis, and often Telfast is used to relieve the symptoms of hay fever.

The active ingredient in Telfast is fexofenadine, which is a prescription only medication. Telfast tablets are taken once a day, when you’re experiencing symptoms of allergic rhinitis, or it’s hay fever season.

If you experience allergy symptoms, that aren’t relieved by over counter hay fever tablets or nasal sprays, you can request Telfast through our Online Doctor service.

Visit Online Doctor

What is allergic rhinitis?

Allergic rhinitis is inflammation in the nose caused by your body’s reaction to an allergen like pollen. It’s thought that as many as 1 in 5 people in the UK experience the condition at some point. Lots of these people will experience it seasonally as hay fever.

Symptoms of allergic rhinitis can include:

  • Blocked nose
  • Runny nose
  • Sneezing
  • Itchy nose
  • Itchy mouth
  • Coughing
  • Red eyes
  • Itchy eyes
  • Watery eyes
  • Snoring

What causes allergic rhinitis?

When your body comes into contact with an allergen your immune system reacts to fight the allergen off as it were something harmful.

Common allergens include:

  • Pollen (this type of allergic rhinitis is what we call hay fever)
  • Mould spores
  • Animals
  • House dust mites
  • Work-related allergens e.g. wood or floor dust or latex

Your body’s reaction means that lots of cells start releasing chemicals (histamines) that cause the inside of your nose to swell and produce more mucus than normal. The swelling and excess mucus is what makes our nose blocked and start to run.

How does Telfast work

Telfast contains fexofenadine, which is a type of chemical called an antihistamine. It works by stopping the effects of histamines, the chemicals released by cells when they detect an allergy. Taking an antihistamine like Telfast, should help calm down the inflammation in your nose and sooth your allergy symptoms.

Taking Telfast tablets

You can take one Telfast tablet a day, for as long as you’re experiencing symptoms of allergic rhinitis.

Alternatives to Telfast

There are plenty of alternatives to taking Telfast. Lots of people who experience hay fever, or other types of allergic rhinitis, might try over the counter tablets, like Piriton first. You can also buy nasal sprays and eye drops, which can help to ease symptoms. For natural and drug-free options, you could try the Fusion Allergy range.

You can also take steps to try and limit the amount of pollen/allergen you’re exposed to, for example:

  • Having a shower and washing your hair after being exposed to the allergen
  • Wash your nasal passage with a saltwater solution
  • If you have hay fever you could:
    • Wear wraparound sunglasses
    • Avoid going outside when the pollen count is highest
    • Avoid drying your clothes or bedding outside

If you find that these over-the-counter solutions and preventative measure don’t work, instead of trying Telfast, you could speak to your GP about other options. They might advise corticosteroids in the form of a spray or drops. Or some people might be referred for immunotherapy (this is when you’re exposed to more and more of an allergen to make your immune system less sensitive to it).

Request Telfast

Online Doctor VideoGP

Telfast frequently asked questions

  • Are Telfast and Fexofenadine the same thing?

    Telfast is the branded version of fexofenadine. They contain the same active ingredient and work in the same way to relieve allergy symptoms.

  • Will I experience any side effects from taking Telfast?

    Like all medicines, you might experience some side effects when taking Telfast. Common side effects include:

    • Headaches
    • Drowsiness
    • Feeling sick
    • Dizziness

    Always read the patient information leaflet before taking any medicine, so you’re fully aware of any potential side effects.

  • Do I need a prescription for Telfast?

    Yes, Telfast is a prescription-only medication, so you will need a prescription to be able to get it. You might be prescribed the medication by your GP. Or you can request it online through our Online Doctor allergy service.

  • Can I take Telfast whilst pregnant?

    It’s best to speak to your GP or maternity care team before taking any medications in pregnancy. Find out more about managing hay fever symptoms in pregnancy.