Fexofenadine (generic Telfast)

Fexofenadine tablets treat allergic rhinitis, commonly caused by hay fever and other allergies. 

Taking Fexofenadine

Fexofenadine is typically taken once a day, before a meal where possible. If you can, take the medication at the same time each day as this will help you get into a routine. 

How does Fexofenadine work?

Antihistamines treat the symptoms of allergic rhinitis by blocking the effect of histamine. Histamines are produced when you come into contact with something you are allergic to (e.g. pollen, animal hair or insect bites). In an allergic reaction histamines can cause itchy, watery eyes, a running nose and sneezing. Fexofenadine contains the active ingredient fexofenadine hydrochloride, which is an antihistamine.

How effective is Fexofenadine?

Fexofenadine usually takes effect in one to two hours and is an effective treatment for the early stages of an allergic reaction. As the medication is classed as a non-drowsy treatment, it may be a better solution than other antihistamines. 

Are there any side effects to taking Fexofenadine?

Like all medicines, there is a small chance that you may experience side effects when taking Fexofenadine. Even though the medication is classed as non-drowsy, side effects can include headache, drowsiness, feeling sick and dizziness. 

For full information on side effects and correct use, see the patient information leaflet. 

Will Fexofenadine interact with any other medications I’m taking?

Some medications will interfere with Fexofenadine and increase your chance of side effects. As always, it’s important to tell your clinician if you are taking any other medications when you request Fexofenadine. 

If you are taking indigestion remedies containing aluminium or magnesium you should leave two hours between times that you take Fexofenadine and the remedy. 

Alternative treatments for allergic rhinitis

If you know what the cause of your allergic rhinitis is, trying to limit your exposure to this allergen (the thing that triggers your symptoms) should help reduce your symptoms. Regular cleaning of the nasal passages with a salt water solution should also help keep your nose free of irritants. 

Some people use steroid nasal sprays to help manage their allergic rhinitis symptoms. You could also combine Fexofenadine with a steroid nasal spray or decongestant.

Your local LloydsPharmacy will also have a range of eye-drops and nasal sprays that can also help with hay fever symptoms. These may be suitable to use with Fexofenadine, ask your pharmacist for advice. 

Reordering treatment

To reorder Fexofenadine, go to your Patient Record and select ‘reorder’. You will be required to fill in the online questionnaire each time you reorder.