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Variety of delivery options including next day & free delivery.
Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
Fill in a quick online consultation for our licensed pharmacists to review.
Our pharmacists will review your treatment to ensure it’s suitable.
Your treatment will be delivered to your door quickly & discreetly.
| Medication Name | Treathay Tablets |
| Active Ingredient | Fexofenadine Hydrochloride 120mg |
| Medication Form | Tablet |
| Used to Treat | Hay fever and allergic rhinitis |
| Available Strengths | 120mg (10 tablets or 30 tablets) |
| Other names this medication is known by | Fexofenadine, Telfast, Allevia |
| Common Side Effects | Headache, drowsiness, nausea |
| Do you need a prescription for it? | No – available as a Pharmacy (P) medicine under pharmacist supervision |
| How should it be taken? | Once daily with water |
| Patient Information Leaflet | Treathay Patient Information Leaflet |
Treathay tablets are used to manage and relieve symptoms associated with seasonal allergic rhinitis (hayfever) and other allergic conditions. These tablets help relieve uncomfortable symptoms like sneezing, itchy or watery eyes, runny nose, and itching of the nose or throat.
Treathay works by blocking the effects of histamine, a chemical released during an allergic reaction. Fexofenadine, the active ingredient in these tablets, prevents histamine from binding to its receptors, reducing allergy symptoms. This makes Treathay an effective solution for controlling and managing hay fever symptoms without causing significant drowsiness, allowing you to get on with your day.
Treathay starts working within one hour and provides 24-hour relief. Continue to use daily throughout the allergy season or as advised by your pharmacist.
Galpharm Treathay is suitable for adults and children aged 12 years and over.
Do not take Treathay if you:
Speak to your doctor or pharmacist before taking it if you:
While Treathay hayfever tablets are safe for most people, they can cause side effects.
If you notice any side effects, even those not mentioned here, speak to your doctor or pharmacist.
Side effects can also be reported to the MHRA’s Yellow Card Scheme, which helps monitor the safety of the medication for everyone. Reporting is important for maintaining drug safety.
Active ingredient: Fexofenadine hydrochloride 120 mg, equivalent to 112 mg of fexofenadine
Other ingredients in tablet core: Microcrystalline cellulose, maize starch, magnesium stearate, croscarmellose sodium, povidone. Film coating: Hypromellose (E464), macrogol (PEG 400), macrogol (PEG 4000), titanium dioxide (E171), iron oxide yellow (El72) and iron oxide red (E172).
You can buy Treathay tablets online from Click2Pharmacy’s allergy treatment clinic. After placing your order, you’ll complete a short online consultation. Our pharmacists will review your details to ensure Treathay is the right treatment for you before issuing your prescription.
Treathay tablets can generally be used alongside allergy eyedrops and nasal sprays. Many people find that combining treatments provides better relief from different hay fever symptoms. However, always check with your doctor or pharmacist if you’re unsure about using multiple treatments together.
Treathay tablets can be taken with or without food. However, you should avoid taking them with fruit juices (particularly orange, grapefruit, or apple juice) as these can reduce how well the medication is absorbed. If you’re taking other medicines, speak to your doctor or pharmacist, as some medications may interact with fexofenadine.
Treathay works effectively for pet allergies by blocking histamine, the chemical your body releases when exposed to pet dander, fur, or saliva. This helps reduce symptoms like sneezing, itchy eyes, and a runny nose caused by cats, dogs, or other pets. Take one tablet daily for ongoing relief from pet allergy symptoms.
Treathay is effective at relieving itchy eyes caused by hay fever and allergies. The fexofenadine in Treathay blocks histamine receptors, which helps reduce the itching, watering, and redness. Most people notice improvement within 1-2 hours of taking the tablet, with effects lasting up to 24 hours.
Page content authored by Mr Muhammad, last reviewed by Amjad Khan on 18th December 2025.
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