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Telfast
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Telfast is a high-strength antihistamine containing the active ingredient fexofenadine hydrochloride, specifically formulated to provide rapid relief from the symptoms of seasonal allergic rhinitis (hay fever) and chronic idiopathic urticaria (hives).
- Non-drowsy formula for effective daytime allergy relief
- Fast-acting antihistamine that starts working within one hour
- 24-hour protection with just a single daily dose
- Clinically proven for seasonal allergies and chronic hives
More information
"Telfast is a potent, second-generation antihistamine frequently prescribed for patients who require effective, non-sedating relief from hay fever or chronic itchy skin rashes. As it does not easily cross the blood-brain barrier, it allows users to manage symptoms like sneezing and watery eyes without the significant drowsiness often associated with older allergy medications." - Rachael Clarke MRCPharm MFRPSI FRSPH (GPHC Number: 2061366)
You can purchase Telfast safely through our online pharmacy after completing a brief health consultation with a registered prescriber. Once your consultation is approved, your medication is shipped directly from our UK-based pharmacy (GPHC Number: 9011560) in discreet packaging to ensure your privacy and convenience.
The cost of your Telfast prescription is competitive and includes the price of the online consultation and the medication itself. We provide transparent pricing at the checkout stage, ensuring you receive a professional service that offers value compared to traditional high-street pharmacy visits.
We offer a range of flexible delivery methods to suit your schedule, ensuring your allergy treatment arrives when you need it most. All orders are sent via tracked services, and you will receive notifications throughout the transit process so you can monitor your package from our pharmacy to your door.
Telfast is a branded medication used to treat seasonal allergic rhinitis and long-term skin conditions like chronic hives. It belongs to a class of drugs known as H1-receptor antagonists, which are designed to stop the body's overreaction to allergens such as pollen, pet dander, and dust mites.
The primary active substance in this medication is fexofenadine hydrochloride. Each tablet also contains inactive excipients like microcrystalline cellulose, croscarmellose sodium, and magnesium stearate, which help the tablet maintain its structure and dissolve effectively in the digestive system.
Many patients report that Telfast is highly effective for managing severe hay fever symptoms that do not respond to standard over-the-counter antihistamines. Feedback often highlights the benefit of the non-drowsy formula, allowing individuals to maintain their daily routines, driving, and work commitments without feeling fatigued.
The Patient Information Leaflet (PIL) provides essential details on how to take the medicine safely and a full list of ingredients. You should read the leaflet included in your medication box thoroughly before starting your first dose to understand the specific clinical guidelines for this treatment.
Telfast works by blocking the action of histamine, a natural chemical produced by the immune system during an allergic reaction. By preventing histamine from binding to its receptors, the medication reduces inflammation, itching, and mucus production, effectively calming the body's response to environmental triggers.
You should take one tablet daily with a glass of water before a meal to ensure maximum absorption. Consistency is key for managing chronic conditions, so it is recommended to take your dose at the same time each day, avoiding fruit juices like orange or grapefruit as they can interfere with the medicine's efficacy.
The standard dosage for adults and children over 12 years depends on the condition being treated. For hay fever, a 120mg dose is typically used, while chronic hives often require a 180mg dose once daily. Your prescriber will determine the most appropriate strength based on your symptoms and medical history.
While Telfast is generally well-tolerated, some users may experience mild side effects such as headaches or nausea. These are usually temporary as the body adjusts to the fexofenadine:
- Headache (most common)
- Dizziness
- Drowsiness (rare for this generation)
- Nausea
- Dry mouth
You must inform your prescriber if you have a history of kidney or liver problems, as dose adjustments may be necessary. It is also important to disclose any existing heart conditions, as some antihistamines can occasionally cause an increased or irregular heartbeat in susceptible individuals.
| Medication | Active Ingredient | Drowsiness Risk |
|---|---|---|
| Telfast | Fexofenadine | Very Low |
| Zirtek | Cetirizine | Low |
| Clarityn | Loratadine | Very Low |
| Piriton | Chlorphenamine | High |
Can I take Telfast if I am pregnant?
Telfast is generally not recommended during pregnancy or breastfeeding unless specifically advised by a doctor. Other antihistamines with more extensive safety data in pregnancy may be preferred for expectant mothers.
Is Telfast available on the NHS?
Yes, Telfast can be prescribed on the NHS for certain conditions, but many patients choose to buy it through a private online pharmacy like Mail my Meds for faster access and home delivery convenience.
How quickly does fexofenadine start working?
Most patients begin to feel relief from their allergy symptoms within 60 minutes of taking the tablet, with the effects lasting for a full 24 hours.
The information provided on this page is for general informational purposes only and should not replace seeking advice from a medical professional. Always consult with a doctor or pharmacist for personalised medical advice regarding your specific health needs and treatments.
Our content is regularly reviewed by our team of medical experts to ensure it remains up to date and accurate. We follow strict clinical guidelines to provide you with the most reliable information regarding your healthcare and prescriptions.

