Prescription Hayfever Tablets UK 2026: What Your GP Can Actually Prescribe

Fexofenadine 180 mg moved to pharmacy sale in the UK in 2026, sitting just below GP-prescribed desloratadine, levocetirizine and bilastine on the antihistamine ladder.

Every summer, GP surgeries across the UK fill with hayfever sufferers looking for something stronger than the cetirizine or loratadine they picked up at the supermarket. It is one of the most common reasons for a seasonal appointment, and most GPs have the same conversation dozens of times between late May and early August. The honest reality in 2026 is that the prescription options available on the NHS add only modest benefit over well-chosen over-the-counter treatments. The bigger problem for most people is not the drug itself but how they are using it — starting too late, skipping days, relying on an antihistamine alone without a nasal steroid spray, or ignoring eye symptoms entirely.

This article explains exactly what your GP can prescribe for hayfever in 2026, what has changed with fexofenadine becoming a pharmacy medicine, and where your money is genuinely better spent in the pharmacy rather than at the prescription counter.

The optimised first-line hayfever pathway: why most people do not need a prescription

The British Society for Allergy and Clinical Immunology (BSACI) Standards of Care and NICE Clinical Knowledge Summaries set out a clear first-line pathway for hayfever that has not changed in 2026. It starts with three things used together: a second-generation non-sedating antihistamine taken daily, an intranasal corticosteroid spray used every morning throughout the pollen season, and antihistamine eye drops added as needed for itchy or watery eyes.

The nasal steroid spray is, by a considerable margin, the single most effective treatment for moderate-to-severe hayfever symptoms. Options available without prescription include mometasone (Nasonex, now widely generic), fluticasone propionate (Pirinase), beclometasone (Beconase), and budesonide. Most need to be used daily for at least two weeks before they reach full effect, which means starting in early to mid-May for grass pollen season rather than waiting until symptoms are unbearable.

The common reason over-the-counter hayfever tablets fail is not that the drug is too weak. It is one of four practical problems: the person only takes the antihistamine on bad days rather than every day through the season, they never use a nasal steroid spray at all, they started treatment in June rather than late April or early May, or they have untreated allergic conjunctivitis that no tablet will settle. For most adults, sorting out these basics — and spending around £5 to £8 on a generic nasal steroid spray from the supermarket — delivers as much symptom relief as a GP prescription. BSACI guidance is clear on this point: optimise the first-line combination before reaching for second-line options.

Fexofenadine 180 mg is now pharmacy sale: what changed in 2026

The most significant practical change for hayfever sufferers in 2026 is the MHRA reclassification of fexofenadine 180 mg tablets from prescription-only (POM) to pharmacy (P) status. This means a pharmacist can sell fexofenadine 180 mg without a GP prescription, after a brief consultation at the counter. Previously, only the 120 mg dose was available over the counter; the 180 mg dose required a prescription.

Fexofenadine is a second-generation antihistamine, like cetirizine and loratadine, but it is the active metabolite of terfenadine and is generally regarded as the most potent non-sedating antihistamine in the class. It works within about one hour, lasts 24 hours, and has a negligible drowsiness profile at the 180 mg dose — making it suitable for drivers, shift workers and anyone operating machinery.

Brand names include Telfast 180, Allevia 180, and supermarket own-brand fexofenadine 180 mg. A pack of 30 tablets typically costs between £8 and £12 at a supermarket pharmacy, which works out at around 30 to 40 pence per day. That is more expensive than supermarket cetirizine, which can cost under £2 for 30 tablets, but it is still cheaper than a £10 NHS prescription charge in England for the same drug.

For people who have tried cetirizine or loratadine and found them insufficient, fexofenadine 180 mg is the logical next step to try at the pharmacy before booking a GP appointment. It suits adults and children over 12 years. It does not interact significantly with most other medicines. The main limitation is that it can be less effective for people who have built up tolerance after years of daily antihistamine use, in which case switching drug class — rather than just increasing the dose — may help.

Stronger prescription antihistamines your GP can prescribe

When over-the-counter antihistamines and pharmacy fexofenadine have been tried consistently and symptoms remain poorly controlled, your GP has several prescription-only antihistamines available. The most commonly prescribed are desloratadine 5 mg (brand name Aerius), levocetirizine 5 mg (Xyzal), bilastine 20 mg (Ilaxten), and rupatadine 10 mg (Rupafin).

Desloratadine and levocetirizine are chemically very close to the OTC options loratadine and cetirizine. They are the active metabolites, meaning the body does not need to break them down before they work, so they achieve a clinical effect at a lower dose. The symptomatic difference for most people is modest. Bilastine is a useful alternative for patients who experience drowsiness or headaches with cetirizine, which is a common reason for switching. Rupatadine has a dual mechanism, blocking both histamine and platelet-activating factor, and may suit people with particularly severe nasal congestion.

All four are non-sedating at standard doses and are taken once daily. An NHS prescription in England costs the standard £10 per item charge per dispensing. If your GP prescribes a month’s supply, that works out at roughly 33 pence per day, which is comparable to buying fexofenadine 180 mg at the pharmacy. However, if your GP issues a three-month prescription on one script, the economics shift in your favour. In Scotland, Wales and Northern Ireland, where prescriptions are free, there is a clear financial advantage to getting a prescription.

One point worth knowing: GPs in England are guided by NHS England self-care policy not to routinely prescribe medicines that are available over the counter. A GP can still prescribe if your symptoms are severe, if you have a learning disability, if there are complex prescribing needs, or if you are a child under 12. If your GP declines, ask them to explain the specific reason — it is a reasonable question and most practices will have a written policy.

Combination nasal sprays and montelukast: when GPs add a second-line drug

Combination sprays and leukotriene receptor antagonists sit at step four on the hayfever treatment ladder, reserved for cases where first-line options have been optimised.

If a non-sedating antihistamine and an intranasal corticosteroid spray, both used correctly and regularly, are still not controlling symptoms, your GP has two main second-line options: a combination nasal spray or montelukast tablets.

Dymista (azelastine plus fluticasone) is the most widely prescribed combination nasal spray. It combines an antihistamine and a corticosteroid in a single device, delivering both anti-inflammatory and antihistamine action directly to the nasal lining. Clinical trials cited by BSACI show it is more effective than either component alone for moderate-to-severe allergic rhinitis. It is a prescription-only medicine and costs the NHS one prescription charge per item. One bottle contains 23 grams, roughly a month’s supply at two sprays per nostril once daily. Some GPs will trial it for the peak pollen months of June and July rather than the whole season.

Montelukast 10 mg (brand Singulair, widely generic) is a leukotriene receptor antagonist. It is licensed for allergic rhinitis as an add-on to antihistamines and nasal steroids. However, the MHRA issued a black triangle warning in recent years, and it remains under enhanced monitoring in 2026. Patients must be counselled about potential psychiatric side effects, including low mood, sleep disturbance, anxiety and, rarely, suicidal ideation. Your GP should discuss these risks before prescribing. If you or your family notice any mood changes, you should stop the medicine and contact the surgery promptly. Most patients tolerate montelukast without difficulty, but the warning is there for a reason and both prescriber and patient need to be aware.

These second-line options are typically reserved for people whose symptoms are clearly interfering with work, sleep or daily life despite correct first-line use — not as a first attempt at treatment.

Short oral prednisolone courses: the wedding or exam option

Occasionally, a patient needs to be completely symptom-free for a specific, time-limited event — a wedding, an important exam, a job interview, or a once-a-year outdoor event. In these situations, GPs may consider a short course of oral prednisolone, typically 20 to 30 mg per day for 5 to 7 days. This is a systemic corticosteroid, and it is highly effective at suppressing hayfever symptoms rapidly, usually within 24 to 48 hours.

This option is used very sparingly. Prednisolone at these doses for a short period is generally safe, but it is not suitable for everyone. GPs will check for contraindications including uncontrolled diabetes, active infections, peptic ulcer history and osteoporosis. Side effects over a short course can include insomnia, increased appetite, stomach irritation and mood changes. It is not a treatment to repeat every week through the summer.

The Kenalog injection — triamcinolone acetonide, a long-acting depot steroid — was historically popular for hayfever but has been withdrawn from NHS use for seasonal allergic rhinitis. It is still available at some private clinics for around £75 to £130 per injection. The BSACI advises against routine use because a single depot injection delivers a prolonged systemic steroid exposure with risks including adrenal suppression, osteoporosis and blood sugar disturbance that outweigh the convenience for most patients. If you are offered Kenalog privately, it is worth understanding that the NHS no longer considers the risk-benefit ratio acceptable for seasonal hayfever. A short oral course, used only on rare occasions, is the GP-level steroid option that remains.

When to ask the GP for an allergy specialist referral

Most hayfever can be managed at GP level or self-managed with over-the-counter and pharmacy medicines. Specialist referral is appropriate when symptoms are genuinely severe across multiple pollen seasons despite correct GP-level treatment, when the diagnosis is uncertain, or when sublingual immunotherapy is being considered.

Sublingual immunotherapy tablets — Grazax for grass pollen, Acarizax for house dust mite, and Itulazax for birch pollen — can only be initiated by an NHS allergy specialist, not by a GP. These tablets are taken daily for up to three years and work by gradually desensitising the immune system to the relevant allergen. They can significantly reduce symptoms and medication use in subsequent seasons, but the commitment is long and the treatment is not suitable for everyone.

NHS waiting times for allergy clinics vary considerably by region. In some areas, waits of 6 to 18 months are common. The BSACI website maintains a directory of NHS allergy clinics that can help you identify the nearest service. Your GP can write a referral letter specifying the treatments already tried, which helps the specialist prioritise.

If you are considering paying privately, immunotherapy consultation and treatment can cost several hundred pounds over the treatment course. It is the closest thing to a long-term cure for hayfever, but it requires patience and consistent follow-up.

Frequently Asked Questions

Is it cheaper to buy hayfever tablets at the pharmacy or get them on prescription?

For most adults in England, buying over-the-counter is cheaper. Supermarket cetirizine 30 tablets costs under £2, while an NHS prescription is £10 per item. Pharmacy fexofenadine 180 mg costs around £8 to £12 for 30 tablets, still less than one prescription charge. However, if your GP prescribes a three-month supply on one item, or if you live in Scotland, Wales or Northern Ireland where prescriptions are free, the prescription route may save money. A Prescription Prepayment Certificate in England (around £33 for 3 months or £115 for 12 months) helps if you collect multiple items regularly.

Can my GP refuse to prescribe hayfever tablets in 2026?

Yes. NHS England guidance encourages GPs not to prescribe medicines that are available over the counter for self-limiting conditions. Exceptions include severe symptoms, a diagnosed neurodisability, children under 12, and situations where prescription complexity requires medical oversight. If your GP declines, they should explain why. You can ask for a copy of the practice’s self-care policy. If symptoms are genuinely severe, most GPs will prescribe. Persistence with correct OTC treatment first strengthens your case.

What is the strongest non-prescription hayfever tablet in the UK in 2026?

Fexofenadine 180 mg, available from pharmacies without prescription since the 2026 MHRA reclassification. It is sold as Telfast 180, Allevia 180 and supermarket own-brand versions. It is a non-sedating, once-daily antihistamine that works within one hour. It is the same strength that previously required a GP prescription and is the most potent antihistamine currently available without seeing a doctor.

Are prescription antihistamines actually stronger than over-the-counter ones?

Only marginally. Desloratadine and levocetirizine are the active metabolites of loratadine and cetirizine respectively, so they work at lower milligram doses but produce broadly similar symptom relief for most people. Bilastine is genuinely useful for those who cannot tolerate cetirizine due to drowsiness or headaches. The real clinical difference is usually about consistent correct use rather than the specific drug. Someone who takes cetirizine every day from mid-May with a nasal steroid spray will often do better than someone who takes desloratadine sporadically in July.

Is montelukast safe with the new MHRA warnings?

Montelukast remains a licensed and prescribed medicine, but it carries an MHRA black triangle warning for psychiatric side effects. These include low mood, sleep disturbance, anxiety, and rarely, suicidal thoughts. Your GP should discuss these risks before prescribing and monitor for mood changes during treatment. If you notice new or worsening mood symptoms, stop the medicine and contact your surgery. Most people tolerate montelukast without problems, but awareness of the warning matters.

Can I get a Kenalog hayfever injection on the NHS in 2026?

No. Kenalog (triamcinolone acetonide) has been withdrawn from NHS use for seasonal allergic rhinitis. Private clinics still offer it for around £75 to £130 per injection. The BSACI advises against routine use because of systemic steroid side effects including adrenal suppression, blood sugar disturbance and osteoporosis risk. A short oral prednisolone course, prescribed by your GP for a specific event, is the remaining steroid option on the NHS.

When should I start hayfever treatment for the 2026 season?

At least two weeks before your symptoms typically begin. For grass pollen, which causes the most common hayfever symptoms in the UK, that means starting your nasal steroid spray and daily antihistamine by mid-May for most adults. Pre-loading the nasal lining with a corticosteroid before pollen exposure is significantly more effective than starting treatment once symptoms have already begun. Set a calendar reminder for the first week of May if you tend to forget.

This article is informational only and does not replace personalised advice from your GP, pharmacist, or another qualified healthcare professional.