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Telfast (Fexofenadine) is a medicine used to relieve allergic reactions, such as hay fever. Telfast provides relief from various symptoms, including runny and itchy eyes, blocked or runny nose, sneezing and hives.

See Telfast (Fexofenadine) Tablets Patient Information Leaflet

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Telfast (Fexofenadine) Tablets
  • Kidney or liver problems
  • History of heart problems such as an irregular or fast heartbeat or angina
  • Epilepsy
  • Any other oral medications for allergies/hayfever (fexofenadine is okay to use with other topical allergy treatments such as nasal sprays at the same time, although there may be limited beneift if that is a topical antihistamine)
  • NSAIDs (Non-steroidal anti-inflammatory drugs) e.g. ibuprofen
  • Ketoconazole, itraconazole, posaconazole or voriconazole (used to treat infections caused by a fungus)
  • Digoxin (used to treat heart problems)
  • Diazepam (used to treat anxiety, relax muscles or in epilepsy) 
  • Ulipristal (used as emergency contraception or treatment for fibroids) 
  • Phenytoin or fosphenytoin (used in epilepsy) 
  • Medicines that are used to thin your blood, such as warfarin or other Vitamin K blockers. 
  • Rifampicin (used to treat tuberculosis) 
  • Atazanavir, rilpivirine, tripranavir, saquinavir, nelfinavir, raltegravir (used to treat hiv infection)
  • Ledipasvir (used for hepatitis c treatment) 
  • Ciclosporin or tacrolimus (in cases of organ transplantation) 
  • St John's Wort (hypericum perforatum) (used to treat mild depression) 
  • Cilostazol (used to treat intermittent claudication) 
  • Clopidogrel (used to prevent blood clots (thrombi)) 
  • Vitamin B12, cyanocobalamin, hydroxocobalamin erlotinib, dabrafenib, lapatinib or pazopanib (for cancer treatment)
  • Clarithromycin (an antibiotic)
  • Methotrexate (for cancer or rheumatoid arthritis treatment) 
  • Escitalopram (an antidepressant) 
  • Clozapine (for schizophrenia)

You should check that these tablets do not make you feel sleepy or dizzy before driving or operating machinery?

  • Indigestion remedies (such as antacids)
  • Ulipristal (emergency contraception/treatment for fibroids)
  • You will read the Patient Information Leaflet supplied with your medication
  • You will contact us and inform your GP of your medication if you experience any side effects of treatment, if you start new medication, or if your medical conditions change during treatment
  • The treatment is solely for your own use
  • You are over the age of 18 and you have entered your own information for our identity verification checks
  • You have answered all the above questions accurately and truthfully
  • You understand our doctors take your answers in good faith and base their prescribing decisions accordingly, and that incorrect information can be hazardous to your health
  • You will inform your own GP of this purchase if appropriate
  • You are happy for your consultation to be reviewed by a European doctor company, and as such it is not subject to CQC Registration or inspection in England. 
  • You have read our privacy policy, cookie policy, patient agreement, data sharing agreement and Terms & Conditions
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Telfast (Fexofenadine) is a medicine used to relieve allergic reactions, such as hay fever. Telfast provides relief from various symptoms, including runny and itchy eyes, blocked or runny nose, sneezing and hives.

See Telfast (Fexofenadine) Tablets Patient Information Leaflet


What is Fexofenadine and what does it do?

Fexofenadine, here sold under the brand name Telfast, is a medicine used to relieve allergic reactions, such as hay fever. Telfast provides relief from various symptoms, including runny and itchy eyes, blocked or runny nose, sneezing and hives.

Telfast contains the active ingredient fexofenadine. It is an antihistamine and works by blocking the effects of histamine in the body.

When is Fexofenadine prescribed?

Telfast fexofenadine may be prescribed to adults who suffer from symptoms associated with hay fever, also known as seasonal allergic rhinitis. Fexofenadine usually relieves symptoms within an hour with the effect lasting up to 24 hours.

Fexofenadine is provided in the form of film coated tablets. Each tablet contains 120mg of fexofenadine hydrochloride. The tablets are usually taken for as long as symptoms persist.

Is Fexofenadine suitable for my condition?

The suitability of this treatment is determined by our doctor. When you request your prescription, you will prompted to submit a medical questionnaire. The information in the questionnaire will be used by our doctor to ensure Fexofenadine is safe and suitable for you to use.

Telfast hay fever tablets are likely to be prescribed as long as any of the below does not apply to you.

Fexofenadine is not suitable if:

  • You are allergic or sensitive to fexofenadine or any of the ingredients listed in the patient information leaflet.
  • You have problems with your liver or kidneys.
  • You have or have had a heart disease.
  • You are over the age of 65.

What is the recommended dosage of Fexofenadine?

You should follow the doctor’s instructions on how to take this medicine. The doses outlined below is for your reference only. The tablet should be swallowed whole with a glass of water. You are advised to take the tablet before a meal.

Telfast fexofenadine doses for adults

The recommended dose is 1 tablet (120mg) taken once daily.

Do not exceed the stated dose.

Does Fexofenadine cause any side effects?

Yes, just like all medicines, Telfast may cause side effects. Always read through the patient information leaflet before taking this medicine as it is important that you familiarise yourself with any potential side effects.

Common side effects associated with taking Telfast include but are not limited to:

  • Headache.
  • Drowsiness.
  • Feeling sick (nausea).
  • Dizziness.

Contact you GP or nearest surgery immediately if you notice any signs of an allergic reaction, such as swelling of the face, lips, tongue or throat or difficulty breathing.

Can I reduce the risk of getting side effects?

Yes, you can reduce the risk of experiencing side effects by letting our doctors know of any medical conditions you may have and any medicines you may take. This will help you avoid side effects related to drug interaction. Please include this information when you fill in the online medical questionnaire.

Remember to take Telfast fexofenadine before a meal.

How do I buy Fexofenadine online?

You need a prescription from a GMC registered doctor to legally and safely buy Telfast fexofenadine online. Our web-based doctor service allows you to request a private prescription through our online medical questionnaire.

Once you have submitted the medical questionnaire, it will be reviewed by one of our doctors. If the doctor deems your chosen medicine suitable and safe for you to use, a prescription will be issued and sent to our UK based pharmacy.

Your medicine is usually dispatched for delivery within 24 hours of ordering.

Dosage instructions
Take ONE tablet daily