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Allergy & Hayfever Relief Cetirizine and Optrex Allergy Eye Drops Bundle - 30 Tablet

Allergy & Hayfever Relief Cetirizine and Optrex Allergy Eye Drops Bundle - 30 Tablet

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  • ✔️ Relieves sneezing, itching, and runny nose with cetirizine 10mg
  • ✔️ Soothes itchy, red, watery eyes directly with sodium cromoglicate drops
  • ✔️ Dual-action formula targets both nasal and ocular hayfever symptoms
  • ✔️ Suitable for adults and children aged 6 years and over
  • ✔️ 30-tablet supply covers a full month of daily hayfever treatment

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What Is the Cetirizine and Allergy Eye Drops Bundle for Hayfever?

 

Hayfever affects roughly one in five people in the UK, and for many, symptoms hit from multiple angles at once — sneezing, a streaming nose, and eyes that itch and water relentlessly. This cetirizine and allergy eye drops bundle tackles both problems together. You get 30 cetirizine hydrochloride 10mg tablets to manage systemic symptoms like sneezing and nasal congestion, paired with Optrex Allergy Eye Drops to soothe irritated, itchy eyes directly at the source. At £14.00, it is a practical, cost-effective way to cover your bases during pollen season. If you are looking for a broader range of allergy treatments, browse our allergy and hay fever collection for more options.

Cetirizine is a second-generation antihistamine, which means it is far less likely to cause the heavy sedation associated with older antihistamines. Optrex Allergy Eye Drops contain sodium cromoglicate, a mast cell stabiliser that works locally in the eye to prevent the release of histamine and other inflammatory mediators. Together, they offer a dual-action approach that many people find more effective than either product alone.

 

How Does This Hayfever Bundle Work in the Body?

 

Understanding how each component works helps you use this bundle with confidence. Here is a quick breakdown:

  • Cetirizine 10mg tablets: Cetirizine selectively blocks peripheral H1 histamine receptors. When pollen triggers an immune response, your body releases histamine — the chemical responsible for sneezing, itching, and a runny nose. By blocking those receptors, cetirizine reduces these reactions without significantly crossing the blood-brain barrier, so drowsiness is much less of an issue than with first-generation antihistamines.
  • Optrex Allergy Eye Drops (sodium cromoglicate): These drops stabilise mast cells in the conjunctiva — the thin membrane covering the white of your eye. Stabilised mast cells are less likely to release histamine when exposed to allergens like pollen or pet dander, reducing redness, itching, and watering at the eye surface.
  • Combined effect: The tablet addresses whole-body histamine responses while the eye drops provide targeted, localised relief. This means you are not relying on a single mechanism to do all the work.

 

Who Should Use This Allergy and Hayfever Bundle?

 

This bundle is designed for adults and children aged 6 and over who experience seasonal allergic rhinitis (hayfever) with associated eye symptoms. It is particularly useful if you find that a tablet alone does not fully control your eye irritation, or if you prefer to avoid using a separate prescription treatment for ocular symptoms.

  • Adults and teenagers with seasonal hayfever affecting both nose and eyes
  • People who have previously used cetirizine and found it effective
  • Those who wear contact lenses (remove lenses before applying eye drops and wait at least 15 minutes before reinserting)
  • Anyone looking for a non-drowsy antihistamine option alongside targeted eye relief

 

How Does This Bundle Compare to Buying Separately?

 

Feature This Bundle Buying Separately
Cost £14.00 combined Typically £8–£12 per product individually
Symptom coverage Systemic + ocular Depends on products chosen
Convenience Single order, one delivery Multiple purchases required
Active ingredients Cetirizine HCl 10mg + Sodium cromoglicate Varies by brand

 

Is This Bundle Clinically Suitable and How Should You Store It?

 

Store cetirizine tablets below 25°C in a dry place, away from direct sunlight. The Optrex Allergy Eye Drops should also be kept below 25°C and discarded 28 days after opening — write the opening date on the bottle so you do not forget. Keep both products out of reach of children. If you are managing multiple health conditions alongside hayfever, you might also find our eye care collection helpful for additional ocular health products.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Allergy & Hayfever Relief Cetirizine and Optrex Allergy Eye Drops Bundle - 30 Tablet specifications
Treatment category Allergic rhinitis / Seasonal hayfever / Allergic conjunctivitis
Active ingredient (tablet) Cetirizine hydrochloride 10mg
Active ingredient (eye drops) Sodium cromoglicate 2%
Mechanism of action H1 receptor antagonist (tablet); Mast cell stabiliser (eye drops)
Pack size 30 tablets + 1 bottle Optrex Allergy Eye Drops
Strengths Cetirizine 10mg; Sodium cromoglicate 2%
UK classification Pharmacy (P) medicine
Drug class Second-generation antihistamine + Mast cell stabiliser
Preparation Film-coated tablet + Sterile eye drops solution
Route of administration Oral (tablet); Ocular (eye drops)
Suitable for Adults and children aged 6 years and over

Specifications of Allergy & Hayfever Relief Cetirizine and Optrex Allergy Eye Drops Bundle - 30 Tablet

 

What Is This Hayfever Bundle and What Is It Used For?

 

This bundle combines two over-the-counter medicines to treat the symptoms of seasonal allergic rhinitis (hayfever) and allergic conjunctivitis. Cetirizine hydrochloride 10mg tablets are an antihistamine used to relieve sneezing, itching, a runny or blocked nose, and skin reactions triggered by allergens such as grass pollen, tree pollen, and house dust mites. Optrex Allergy Eye Drops contain sodium cromoglicate 2%, which is used specifically to relieve itchy, red, and watery eyes caused by allergic reactions. Used together, they address both the nasal and ocular dimensions of hayfever — something a single product often cannot do alone.

 

What Do You Need to Know Before Using This Bundle?

 

Before using either product, read the following carefully. Some people should not use cetirizine or sodium cromoglicate eye drops without first speaking to a pharmacist or GP.

Do not use cetirizine tablets if you:

  • Are allergic to cetirizine hydrochloride, hydroxyzine, or any other ingredient in the tablet
  • Have severe kidney impairment (end-stage renal disease)
  • Are under 6 years of age
  • Are pregnant or breastfeeding (seek medical advice first)

Do not use Optrex Allergy Eye Drops if you:

  • Are allergic to sodium cromoglicate or benzalkonium chloride (the preservative)
  • Wear soft contact lenses without removing them first
  • Have an eye infection — treat the infection before using these drops

Drug interactions to be aware of:

  • Alcohol — may increase the sedative effect of cetirizine
  • Sedatives, sleeping tablets, or anxiolytics — combined use may increase drowsiness
  • Theophylline — may slightly reduce the clearance of cetirizine at high doses
  • Other antihistamines — avoid taking alongside cetirizine unless directed by a doctor

 

How Should You Use This Hayfever Bundle Correctly?

 

Using both products correctly is key to getting the most from this bundle. Follow these steps:

  1. Take one cetirizine 10mg tablet by mouth, swallowed whole with a glass of water.
  2. Take the tablet once daily — morning or evening, whichever suits your routine.
  3. Wash your hands thoroughly before handling the eye drop bottle.
  4. Tilt your head back and gently pull down your lower eyelid to create a small pocket.
  5. Squeeze one to two drops into each affected eye without letting the nozzle touch your eye or eyelid.
  6. Blink gently and close your eye for one to two minutes to allow the drops to spread.
  7. If you wear contact lenses, remove them before applying the drops and wait at least 15 minutes before reinserting.
  8. Use the eye drops up to four times daily, or as directed on the packaging.
Product Age Group Dose Frequency
Cetirizine 10mg tablet Adults & children 12+ 1 tablet (10mg) Once daily
Cetirizine 10mg tablet Children 6–11 years ½ tablet (5mg) Twice daily (seek pharmacist advice)
Optrex Allergy Eye Drops Adults & children 6+ 1–2 drops per eye Up to 4 times daily

 

What Are the Possible Side Effects of This Bundle?

 

Like all medicines, both products in this bundle can cause side effects, although not everyone experiences them. Knowing what to look out for helps you manage them quickly.

Common side effects of cetirizine (may affect up to 1 in 10 people):

  • Drowsiness or fatigue
  • Dry mouth
  • Headache
  • Dizziness
  • Stomach discomfort or nausea

Less common side effects of cetirizine:

  • Agitation or restlessness (more common in children)
  • Skin rash or itching
  • Difficulty passing urine

Side effects associated with Optrex Allergy Eye Drops:

  • Mild, temporary stinging or burning immediately after application
  • Temporary blurred vision — avoid driving immediately after use

Stop using the product and seek medical advice if you experience a severe allergic reaction, including swelling of the face, lips, or throat, or difficulty breathing.

 

How Should You Store This Bundle Safely?

 

Correct storage keeps both products effective for their full shelf life. For more eye health products, visit our eye care collection.

  • Store cetirizine tablets below 25°C in a dry place, away from direct sunlight and moisture
  • Keep the Optrex Allergy Eye Drops below 25°C and away from direct heat
  • Discard the eye drops 28 days after first opening — write the date on the bottle
  • Do not freeze either product
  • Keep both products out of the sight and reach of children
  • Do not use either product after the expiry date printed on the packaging
  • Do not dispose of medicines via wastewater or household waste — return unused medicines to your pharmacy

If you are managing other seasonal health concerns alongside hayfever, our ear, nose and throat collection includes additional products that may help.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy the cetirizine and allergy eye drops bundle online in the UK?

You can order this bundle directly from Cured Pharmacy, a GPhC-registered online pharmacy, without needing a prescription. It is available as an over-the-counter product for adults and children aged 6 and over. Simply add it to your basket and choose your preferred delivery option at checkout.

How does cetirizine work to relieve hayfever symptoms?

Cetirizine is a second-generation antihistamine that selectively blocks H1 histamine receptors throughout the body. When you are exposed to pollen or other allergens, your immune system releases histamine — the chemical that causes sneezing, itching, and a runny nose. By blocking those receptors, cetirizine reduces these reactions quickly and with less sedation than older antihistamines like chlorphenamine.

How do I use the Optrex Allergy Eye Drops correctly?

Wash your hands before use, then tilt your head back and gently pull down your lower eyelid to form a small pocket. Squeeze one to two drops into each affected eye, being careful not to let the nozzle touch your eye or eyelid. Blink gently and keep your eye closed for a minute or two to allow the drops to spread evenly across the surface.

What is the correct dose of cetirizine for adults and children?

Adults and children aged 12 and over should take one 10mg cetirizine tablet once daily — do not exceed this dose in any 24-hour period. Children aged 6 to 11 years may take half a tablet (5mg) twice daily, but it is always worth checking with a pharmacist before giving cetirizine to younger children. Never give cetirizine to children under 6 years of age.

Can I take cetirizine and use eye drops at the same time?

Yes — using cetirizine tablets alongside Optrex Allergy Eye Drops is safe for most people and is exactly what this bundle is designed for. The tablet works systemically to reduce sneezing and nasal symptoms, while the eye drops act locally to soothe irritated eyes. Always read both product leaflets before starting, and speak to your pharmacist if you have any concerns.

What is the best time of day to take cetirizine for hayfever?

Cetirizine can be taken at any time of day, but many people find taking it in the evening works well — it means any mild drowsiness occurs during sleep rather than during the day. If you find it does not cause drowsiness at all, taking it in the morning can help you stay ahead of daytime pollen exposure. Consistency matters more than timing, so pick a time you can stick to each day.

What are the side effects of cetirizine tablets?

The most common side effects of cetirizine include drowsiness, dry mouth, headache, and dizziness, though these are generally mild. Less commonly, some people experience stomach discomfort, agitation (particularly in children), or a skin rash. If you develop a severe allergic reaction — such as swelling of the face or difficulty breathing — stop taking the tablet immediately and seek urgent medical attention.

Who should not use this hayfever bundle?

This bundle is not suitable for children under 6 years of age, people with severe kidney impairment, or anyone with a known allergy to cetirizine, hydroxyzine, or sodium cromoglicate. If you are pregnant, breastfeeding, or taking other medicines — particularly sedatives or other antihistamines — speak to your pharmacist or GP before use. You can browse our wider allergy and hay fever collection for alternatives if this bundle is not suitable for you.

What happens if I miss a dose of cetirizine?

If you forget to take your cetirizine tablet, take it as soon as you remember — unless it is nearly time for your next dose, in which case simply skip the missed dose and carry on as normal. Never take a double dose to make up for a missed one. Missing an occasional dose is unlikely to cause your symptoms to flare dramatically, but regular daily use gives the best protection during pollen season.

Can I drive after taking cetirizine?

Cetirizine is a non-drowsy antihistamine for most people, but it can still cause drowsiness in some individuals — particularly when first starting treatment or when combined with alcohol. You should not drive or operate heavy machinery if you feel drowsy or your reactions are impaired after taking cetirizine. The NHS advises checking how the medicine affects you before driving.

How long can I use this hayfever bundle for?

Cetirizine can be used throughout the hayfever season, which in the UK typically runs from late March to September depending on which pollens trigger your symptoms. The Optrex Allergy Eye Drops should be discarded 28 days after opening, regardless of how much remains in the bottle. If your symptoms persist outside of the expected pollen season, or worsen despite treatment, speak to your GP.

Are there alternatives to this cetirizine and allergy eye drops bundle?

Yes — other antihistamines such as loratadine and fexofenadine are available for hayfever, and different eye drop formulations exist for allergic conjunctivitis. If you find cetirizine causes too much drowsiness, fexofenadine is considered one of the least sedating options available. You can explore a range of alternatives in our allergy and hay fever collection.

Can I use the Optrex eye drops if I wear contact lenses?

You should remove your contact lenses before applying Optrex Allergy Eye Drops, as the preservative benzalkonium chloride can be absorbed by soft lenses and may cause irritation. Wait at least 15 minutes after applying the drops before reinserting your lenses. If you wear lenses daily, it is worth speaking to your optician about the best approach to managing eye allergy symptoms.

Does cetirizine interact with alcohol or other medicines?

Alcohol can increase the sedative effect of cetirizine, so it is best to avoid drinking while taking this medicine. Cetirizine may also interact with other sedatives, sleeping tablets, and anxiolytics, increasing the risk of drowsiness. Always tell your pharmacist about any other medicines, supplements, or herbal remedies you are taking before starting cetirizine.

What does the latest research say about cetirizine for hayfever?

Cetirizine has been extensively studied and is well-established as an effective, well-tolerated treatment for seasonal allergic rhinitis. Clinical evidence consistently shows it reduces sneezing, nasal itching, and rhinorrhoea with a rapid onset of action — typically within one hour of taking a dose. It remains one of the most widely recommended second-generation antihistamines by UK healthcare professionals and is listed on the NHS as a first-line hayfever treatment.

How Should You Use This Hayfever Bundle?

Using both products in this bundle correctly gives you the best chance of staying comfortable throughout pollen season. Always read the individual product leaflets before starting, and follow these steps for each component.

What Is the Correct Dose of This Bundle?

Dosing for both products depends on age. Always follow the guidance below and never exceed the stated dose. If you are unsure about the correct dose for a child, speak to your pharmacist before use.

When Is the Best Time to Use This Bundle?

For cetirizine, taking the tablet in the evening suits many people — any mild drowsiness then coincides with sleep, and the antihistamine effect is active throughout the following day when pollen counts are typically highest. If you prefer mornings, that works equally well; the key is consistency. For the eye drops, use them as soon as eye symptoms appear and repeat throughout the day as needed, up to four times. On high pollen days, applying the drops before going outdoors can help prevent symptoms from taking hold in the first place.

How Long Can You Use This Bundle For?

Cetirizine is suitable for use throughout the hayfever season, which in the UK typically spans late March to September, depending on which pollens affect you most. The Optrex Allergy Eye Drops must be discarded 28 days after first opening — write the date on the bottle so you do not lose track. If your symptoms continue beyond the expected pollen season, or if they are not adequately controlled despite using both products as directed, speak to your GP or pharmacist about further options.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

How Should You Use This Hayfever Bundle?

Using both products in this bundle correctly gives you the best chance of staying comfortable throughout pollen season. Always read the individual product leaflets before starting, and follow these steps for each component.

What Is the Correct Dose of This Bundle?

Dosing for both products depends on age. Always follow the guidance below and never exceed the stated dose. If you are unsure about the correct dose for a child, speak to your pharmacist before use.

When Is the Best Time to Use This Bundle?

For cetirizine, taking the tablet in the evening suits many people — any mild drowsiness then coincides with sleep, and the antihistamine effect is active throughout the following day when pollen counts are typically highest. If you prefer mornings, that works equally well; the key is consistency. For the eye drops, use them as soon as eye symptoms appear and repeat throughout the day as needed, up to four times. On high pollen days, applying the drops before going outdoors can help prevent symptoms from taking hold in the first place.

How Long Can You Use This Bundle For?

Cetirizine is suitable for use throughout the hayfever season, which in the UK typically spans late March to September, depending on which pollens affect you most. The Optrex Allergy Eye Drops must be discarded 28 days after first opening — write the date on the bottle so you do not lose track. If your symptoms continue beyond the expected pollen season, or if they are not adequately controlled despite using both products as directed, speak to your GP or pharmacist about further options.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of This Hayfever Bundle?

Most people tolerate cetirizine and Optrex Allergy Eye Drops well, but like all medicines, they can cause side effects in some people. The most frequently reported side effects of cetirizine are mild and tend to improve as your body adjusts to the medicine.

  • Drowsiness or fatigue
  • Dry mouth
  • Headache
  • Dizziness
  • Nausea or stomach discomfort
  • Temporary stinging or burning in the eye immediately after applying the drops
  • Temporary blurred vision after using the eye drops

What Are the Less Common Side Effects of This Bundle?

Less common side effects occur in fewer than 1 in 100 people. They are generally not serious but are worth being aware of, particularly if you are using cetirizine for the first time or giving it to a child.

  • Agitation or restlessness (more frequently reported in children)
  • Difficulty sleeping (insomnia)
  • Skin rash or itching unrelated to the original allergy
  • Difficulty passing urine (urinary retention)
  • Tingling or numbness in the hands or feet
  • Increased sensitivity of the eyes to light after using the drops

What Are the Serious Side Effects of This Bundle?

Serious side effects are rare but require immediate medical attention. Stop using the product straight away and call 999 or go to your nearest A&E if you experience any of the following after taking cetirizine or using the eye drops.

  • Swelling of the face, lips, tongue, or throat (angioedema)
  • Difficulty breathing or swallowing
  • Severe skin reaction such as blistering or peeling
  • Rapid or irregular heartbeat (palpitations)
  • Sudden worsening of eye redness, pain, or vision changes

What Should You Do If You Experience Side Effects?

If you notice mild side effects such as drowsiness or a dry mouth, these often settle within a few days. Drinking plenty of water and avoiding alcohol can help. If drowsiness is affecting your ability to drive or work, consider switching to an evening dose. For eye stinging after using the drops, this is usually brief and resolves within a minute or two — if it persists or worsens, stop using the drops and seek advice from your pharmacist or optician.

Can This Bundle Interact With Other Medicines?

Cetirizine can interact with several other medicines and substances, which may increase the risk of side effects. Always tell your pharmacist about everything you are currently taking before starting this bundle.

  • Alcohol — increases the sedative effect of cetirizine
  • Sedatives, sleeping tablets, or benzodiazepines — combined use may cause excessive drowsiness
  • Other antihistamines — taking more than one antihistamine at a time is not recommended
  • Theophylline (used for asthma) — may slightly reduce the clearance of cetirizine from the body

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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