Hay Fever Relief — Fexofenadine (Telfast)
Effective, non-drowsy relief for seasonal allergies.
T & K Brown Pharmacy - Helping the local community in Anstruther, Cellardyke, Kilrenny, Pittenweem, St Monans and beyond.
Medication
Fexofenadine tablets for allergic symptoms.
Onset
Often works within one hour.
Pharmacy Support
Pharmacist advice available in-store.
Key Points
Fexofenadine provides targeted relief for the typical symptoms of allergic rhinitis and chronic urticaria. It is favoured for daytime use because it has minimal sedative effect compared with first-generation antihistamines. Always follow dosing instructions on the product or those given by a pharmacist. Be mindful that fruit juices such as orange, apple or grapefruit can reduce the medicine’s absorption if taken at the same time. People with severe kidney impairment, pregnant or breastfeeding patients, and those on multiple medicines should consult a pharmacist or GP before starting fexofenadine.
Non-drowsy antihistamine
Usually works within one hour
Adults: typically single daily dose
Avoid taking with fruit juices
About Fexofenadine
Fexofenadine is a second-generation antihistamine designed to reduce sneezing, itchy eyes, runny nose and other hay fever symptoms without the sedating effects common to older antihistamines. It blocks histamine receptors responsible for allergic reactions. Typical adult dosing is a single daily tablet; some preparations are 120 mg once daily while others use 180 mg for chronic urticaria. Avoid taking it with fruit juices, as these can reduce absorption. If you have kidney problems, dose adjustments may be needed. Speak with a pharmacist before use if pregnant, breastfeeding, or taking other medications.
Safe Use and Support
Practical Advice
When taking fexofenadine, read the product leaflet and follow the recommended dose. If you are taking antacids containing aluminium or magnesium, separate the timing as these can reduce absorption. Avoid simultaneous consumption of fruit juices with the dose. Use caution in people with significant kidney disease and seek pharmacist advice to adjust dosing if necessary. If symptoms persist despite correct use, or if you experience severe side effects such as difficulty breathing or swelling, seek immediate medical attention. Our pharmacists can advise on alternatives, switching medicines, and complementary strategies to reduce pollen exposure.
Low sedation risk
Check interactions first
Once-daily dosing
Suitable for seasonal use
When to consult us
Visit the pharmacy if you are unsure about dosing, have coexisting health conditions, or are taking multiple medicines. We can help check for interactions, advise on safe use in pregnancy and breastfeeding, and recommend appropriate products for children. If you notice poor symptom control after several days of correct use, recurrent infections, or signs of a more serious reaction—such as severe wheeze or facial swelling—seek urgent medical care. Keep medications in their original packaging, store them at the recommended temperature, and dispose of unused medicines safely.
Frequently Asked Questions
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What is fexofenadine used for?
Fexofenadine treats hay fever symptoms and chronic hives by blocking histamine receptors that cause allergic reactions.
How quickly does it work?
Many people notice symptom relief within an hour, with full effect typically within a few hours.
Can I drive after taking it?
Fexofenadine is non-drowsy for most people, but if you feel sleepy or dizzy, avoid driving or operating machinery.
Can children take fexofenadine?
There are age-appropriate formulations and doses; always use products licensed for the child's age and consult pharmacy staff for dosing.
Are there interactions I should know about?
Yes. Avoid taking it with fruit juices and space antacids containing aluminium/magnesium; check with a pharmacist about other medicines.
Need personalised advice?
Speak to our pharmacist
If you have questions about suitability, dosing or interactions, our pharmacist can provide a confidential consultation and help you choose the right treatment plan for seasonal allergies.