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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.

Fexofenadine is a prescription strength, non-sedating antihistamine which is used to treat allergic rhinitis (hay fever) in adults. This medication is available from Fairlop Pharmacy as 120mg tablets.

To purchase this medication from Fairlop Pharmacy, please visit us in store for a brief consultation. Our pharmacist will review your requirement and suitability and, just like your GP, check whether it is safe for you to take a hay fever treatment such as fexofenadine tablets.

Our prices are listed below.

Fexofenadine 120mg tablets, 30 pack – £15.00

More information

How does fexofenadine work?

Fexofenadine is a non-sedating (non-drowsy) antihistamine that works to prevent 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.

The typical dose is one tablet per day. Swallow the tablet whole with a full glass of water before a meal.

Fexofenadine side effects

Like any medication, fexofenadine can cause side effects for some people.

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

For detailed info on fexofenadine side effects, please check the patient information leaflet that comes with your tablets


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We offer a free, daily prescription delivery service to the local area – terms apply. Please give us a call to see if we can deliver to you.