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

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?

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.

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.

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.