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Optrex Soothing Eye Drops for Itchy Eyes 10ml

Optrex Soothing Eye Drops for Itchy Eyes 10ml

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  • ✔️ Relieves itchy, irritated eyes caused by allergic conjunctivitis
  • ✔️ Contains sodium cromoglicate 2% to stabilise mast cells in the eye
  • ✔️ Suitable for adults and children aged 6 years and over
  • ✔️ Works preventatively to reduce histamine release before symptoms worsen
  • ✔️ Compact 10ml bottle — easy to carry during hay fever season

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Are Eye Drops for Itchy Eyes the Right Choice for You?

 

Itchy, irritated eyes are one of the most common complaints during allergy season — and if you've ever found yourself rubbing your eyes after stepping outside on a high pollen day, you'll know exactly how distracting it can be. Eye drops for itchy eyes offer targeted, fast-acting relief right where you need it most. Optrex Soothing Eye Drops for Itchy Eyes 10ml are a trusted over-the-counter option, available without a prescription, and designed specifically to calm the allergic response that causes that persistent itch. Whether your symptoms are triggered by hay fever, pet dander, dust mites, or mould spores, these drops are formulated to help. You can browse the full range of related products in our eye care collection at Cured Pharmacy.

Allergic conjunctivitis — the medical term for eye allergy — affects a significant proportion of the UK population, particularly during spring and summer. Symptoms typically include itching, redness, watering, and a gritty sensation. Left untreated, the urge to rub your eyes can actually worsen inflammation and increase the risk of secondary infection. Using a clinically appropriate eye drop early and consistently is one of the most effective ways to manage these symptoms day to day.

 

How Do Optrex Soothing Eye Drops Work?

 

The active ingredient in Optrex Soothing Eye Drops is sodium cromoglicate 2%. This belongs to a class of medicines known as mast cell stabilisers. Here's how it works:

  • When your eyes are exposed to an allergen (such as pollen or pet hair), immune cells called mast cells in the conjunctiva become activated.
  • Normally, these mast cells release histamine and other inflammatory chemicals, which trigger itching, redness, and swelling.
  • Sodium cromoglicate prevents mast cells from releasing these chemicals in the first place — stopping the allergic reaction before it takes hold.
  • Because it works preventatively, the drops are most effective when used regularly throughout the allergy season, even on days when symptoms feel mild.

Unlike oral antihistamines, which work systemically throughout the body, these drops act locally in the eye. That means quicker targeted relief with minimal systemic absorption — a reassuring point for many patients.

 

Who Should Use Optrex Soothing Eye Drops for Itchy Eyes?

 

These drops are suitable for a wide range of people dealing with allergic eye symptoms. They're particularly well suited to those who experience seasonal or perennial allergic conjunctivitis. If you're already managing hay fever with oral antihistamines or nasal sprays — perhaps from our allergy and hay fever range — adding a topical eye drop can provide additional localised relief that oral medicines alone may not fully address.

Suitable for:

  • Adults and children aged 6 years and over
  • People with seasonal allergic conjunctivitis (hay fever eyes)
  • Those with perennial allergic conjunctivitis triggered by dust mites, pet dander, or mould
  • Patients who prefer a preservative-containing topical treatment over systemic antihistamines

 

How Do Optrex Soothing Eye Drops Compare to Alternatives?

 

Feature Optrex Soothing Eye Drops (Sodium Cromoglicate 2%) Opticrom Allergy Eye Drops (Sodium Cromoglicate 2%)
Active ingredient Sodium cromoglicate 2% Sodium cromoglicate 2%
Suitable age 6 years and over 6 years and over
Contact lens use Remove soft lenses before use Remove soft lenses before use
OTC availability Yes Yes

 

How Should You Store Optrex Soothing Eye Drops?

 

Store the bottle below 25°C, away from direct sunlight and out of reach of children. Do not refrigerate. Once opened, the drops must be discarded after 28 days — even if there is still product remaining in the bottle. This is because the preservative system can degrade over time, increasing the risk of contamination. Always check the expiry date printed on the packaging before use.

If you wear soft contact lenses, remove them before instilling these eye drops for itchy eyes and wait at least 15 minutes before reinserting. Hard (rigid gas-permeable) lenses are generally considered compatible, but it's always worth checking with your optician if you're unsure. Never share eye drops with another person, even a family member — cross-contamination is a real risk with ophthalmic preparations.

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.

Optrex Soothing Eye Drops for Itchy Eyes 10ml specifications
Treatment category Allergic conjunctivitis / Itchy eyes
Active ingredient Sodium cromoglicate 2%
Mechanism of action Mast cell stabiliser — prevents histamine release
Suitable for Adults and children aged 6 years and over
Pack size 10ml
UK classification General Sale List (GSL)
Drug class Mast cell stabiliser (cromone)
Preparation Aqueous eye drops solution
Route of administration Ophthalmic (topical to the eye)

Specifications of Optrex Soothing Eye Drops for Itchy Eyes 10ml

 

What Are Optrex Soothing Eye Drops and What Are They Used For?

 

Optrex Soothing Eye Drops for Itchy Eyes 10ml contain sodium cromoglicate 2% w/v as the active ingredient. They are used to relieve the symptoms of allergic conjunctivitis — a condition where the lining of the eye (the conjunctiva) becomes inflamed in response to an allergen. Common triggers include grass and tree pollen, house dust mites, pet hair and dander, and mould spores. Symptoms typically include itching, redness, watering, and a gritty or burning sensation in one or both eyes. These drops work by stabilising mast cells in the conjunctiva, preventing the release of histamine that drives the allergic response. They are available over the counter and do not require a prescription.

 

What Do You Need to Know Before Using Optrex Soothing Eye Drops?

 

Before using these drops, read the following carefully. There are certain situations where you should not use this product or should seek advice first.

Do not use if you:

  • Are allergic to sodium cromoglicate or any other ingredient in the formulation
  • Are wearing soft (hydrophilic) contact lenses at the time of instillation
  • Are under 6 years of age (unless directed by a doctor)

Speak to your pharmacist or GP before use if you:

  • Have an eye infection — these drops do not treat bacterial or viral eye infections
  • Have glaucoma or any other diagnosed eye condition
  • Are pregnant or breastfeeding — while topical absorption is minimal, always seek advice
  • Have experienced an unusual reaction to eye drops in the past

Known drug interactions:

  • No clinically significant interactions with other medicines have been reported for topical sodium cromoglicate at this concentration
  • If you are using other eye drops or eye ointments, leave at least 5 minutes between applications
  • Eye ointments should always be applied last if used alongside drops

 

How Should You Use Optrex Soothing Eye Drops?

 

Always use these drops exactly as described in the patient information leaflet or as directed by your pharmacist. Do not use more than the recommended dose.

  1. Wash your hands thoroughly with soap and water before handling the bottle.
  2. Remove soft contact lenses before instilling the drops.
  3. Tilt your head back slightly and look upward.
  4. Gently pull down your lower eyelid to create a small pocket.
  5. Hold the dropper tip close to your eye without touching it, and squeeze one to two drops into the pocket.
  6. Close your eye gently and blink a few times to spread the drops across the surface of the eye.
  7. Wipe away any excess liquid with a clean tissue.
  8. Repeat in the other eye if required.
  9. Replace the cap immediately after use.
Indication Age Group Dose Frequency
Allergic conjunctivitis Adults 1–2 drops per eye 4 times daily
Allergic conjunctivitis Children (6 years and over) 1–2 drops per eye 4 times daily
Allergic conjunctivitis Under 6 years Not recommended

 

What Are the Possible Side Effects of Optrex Soothing Eye Drops?

 

Like all medicines, Optrex Soothing Eye Drops can cause side effects, although not everyone experiences them. Most side effects are mild and temporary.

Common side effects:

  • Transient stinging or burning sensation immediately after instillation
  • Temporary blurred vision — do not drive until your vision has cleared
  • Mild eye irritation or watering

Less common side effects:

  • Redness of the eye (not related to the original allergy)
  • Eyelid swelling or puffiness
  • Sensitivity to light (photophobia)

If you notice any signs of a serious allergic reaction — such as severe eye swelling, difficulty breathing, or a widespread skin rash — stop using the drops immediately and seek urgent medical attention. You can find further guidance on managing eye conditions on the NHS website.

 

How Should You Store Optrex Soothing Eye Drops?

 

  • Store below 25°C in a cool, dry place
  • Do not refrigerate or freeze
  • Keep out of reach and sight of children
  • Do not use after the expiry date printed on the bottle and carton
  • Discard the bottle 28 days after first opening, even if product remains
  • Do not share the bottle with anyone else
  • Do not use if the solution appears cloudy or discoloured

If you're managing multiple allergy symptoms alongside itchy eyes, it may be worth exploring our allergy and hay fever range for complementary treatments such as antihistamine tablets or nasal sprays.

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 Optrex Soothing Eye Drops for Itchy Eyes online in the UK?

You can buy Optrex Soothing Eye Drops for Itchy Eyes 10ml directly from Cured Pharmacy online for £5.25, with no prescription required. Simply add the product to your basket and select your preferred delivery option at checkout. We are a GPhC-registered UK online pharmacy, so you can order with confidence.

How do Optrex Soothing Eye Drops for Itchy Eyes work in the eye?

These drops contain sodium cromoglicate 2%, a mast cell stabiliser that works by preventing immune cells in the conjunctiva from releasing histamine when exposed to an allergen. Histamine is the chemical responsible for the itching, redness, and watering associated with allergic conjunctivitis. By blocking its release at the source, the drops reduce symptoms before they escalate.

How do I use Optrex Soothing Eye Drops step by step?

Wash your hands, tilt your head back, and gently pull down your lower eyelid to form a small pocket. Squeeze one to two drops into the pocket of each affected eye, then close your eye gently and blink to spread the solution. Replace the cap immediately and avoid touching the dropper tip to any surface.

How many times a day should I use Optrex Soothing Eye Drops?

The recommended dose is one to two drops in each affected eye, four times daily. Try to space the doses evenly throughout the day — for example, morning, midday, late afternoon, and evening. Consistent use throughout the allergy season gives the best results, as sodium cromoglicate works preventatively rather than as an instant rescue treatment.

What are the side effects of Optrex Soothing Eye Drops for Itchy Eyes?

The most commonly reported side effect is a brief stinging or burning sensation immediately after instilling the drops, which usually passes within a minute or two. Temporary blurred vision can also occur, so avoid driving or operating machinery until your vision has fully cleared. If you experience persistent irritation, redness, or swelling, stop use and speak to your pharmacist or GP.

Can I use Optrex Soothing Eye Drops while wearing contact lenses?

You should not instil these drops while wearing soft (hydrophilic) contact lenses, as the preservative in the formulation can be absorbed by soft lens material and cause irritation. Remove your soft lenses before applying the drops and wait at least 15 minutes before reinserting them. If you wear hard (rigid gas-permeable) lenses, check with your optician before use.

Are Optrex Soothing Eye Drops suitable for children?

Yes, these drops are suitable for children aged 6 years and over, using the same dose as adults — one to two drops per affected eye, four times daily. Children under 6 should not use these drops unless specifically directed by a doctor. Always supervise young children during use to ensure correct application.

Who is eligible to use Optrex Soothing Eye Drops for Itchy Eyes?

These drops are suitable for adults and children aged 6 and over who experience itching, redness, or irritation caused by allergic conjunctivitis. They are not suitable for people with known hypersensitivity to sodium cromoglicate or any other ingredient in the formulation. Pregnant or breastfeeding women should consult their GP or pharmacist before use, as a precaution.

What happens if I miss a dose of Optrex Soothing Eye Drops?

If you forget a dose, simply apply the drops as soon as you remember — unless it is nearly time for your next scheduled dose, in which case skip the missed one and carry on as normal. Do not double up doses to compensate for a missed one. Consistent, regular use is important for sodium cromoglicate to work effectively, so try to build it into your daily routine.

How long can I use Optrex Soothing Eye Drops for?

You can use these drops throughout the allergy season or for as long as your symptoms persist. The bottle must be discarded 28 days after opening, regardless of how much product remains, to reduce the risk of contamination. If your symptoms have not improved after a few days of regular use, or if they worsen at any point, consult your pharmacist or GP for further advice.

What are the alternatives to Optrex Soothing Eye Drops for Itchy Eyes?

Other over-the-counter options for allergic conjunctivitis include Opticrom Allergy Eye Drops (also sodium cromoglicate 2%) and antihistamine eye drops such as those containing antazoline or ketotifen. Oral antihistamines can also help manage eye symptoms as part of a broader hay fever treatment plan — you can explore options in our allergy and hay fever collection. Your pharmacist can help you choose the most appropriate option based on your symptoms and medical history.

Can I use Optrex Soothing Eye Drops alongside other eye drops or medicines?

No clinically significant interactions between topical sodium cromoglicate and other medicines have been reported. However, if you are using more than one type of eye drop, leave at least 5 minutes between applications to prevent dilution and ensure each product is properly absorbed. Eye ointments should always be applied last in any multi-product eye care routine.

Are Optrex Soothing Eye Drops safe to use during pregnancy?

Systemic absorption of sodium cromoglicate from eye drops is very low, which is reassuring. However, as with all medicines during pregnancy, you should speak to your GP or midwife before using these drops to ensure they are appropriate for your individual circumstances. Your pharmacist can also provide guidance if you need advice quickly.

What is the latest research on sodium cromoglicate eye drops for allergic conjunctivitis?

Sodium cromoglicate has been used as a mast cell stabiliser for allergic conjunctivitis for several decades and remains a well-established, evidence-based treatment option. Clinical guidelines continue to support its use as a first-line topical treatment for mild to moderate allergic conjunctivitis, particularly for patients who prefer to avoid systemic antihistamines. It is listed in the British National Formulary (BNF) as an appropriate treatment for this indication.

How should I store Optrex Soothing Eye Drops for Itchy Eyes?

Store the bottle below 25°C in a cool, dry place away from direct sunlight — do not refrigerate or freeze. Keep the bottle out of reach of children at all times. Once opened, discard the bottle after 28 days even if product remains, and always check the expiry date on the packaging before use. You can find more eye care products and advice in our eye care collection.

How Should You Use Optrex Soothing Eye Drops for Itchy Eyes?

Using these drops correctly makes a real difference to how well they work. Always wash your hands thoroughly before handling the bottle, and make sure you remove soft contact lenses before instilling the drops.

What Is the Correct Dose of Optrex Soothing Eye Drops for Itchy Eyes?

The standard dose for both adults and children aged 6 and over is one to two drops in each affected eye, four times daily. Do not use more than this without speaking to a healthcare professional first.

When Is the Best Time to Use Optrex Soothing Eye Drops for Itchy Eyes?

Because sodium cromoglicate works as a preventative mast cell stabiliser rather than an instant-acting antihistamine, it works best when used consistently throughout the day. Try to space your four daily doses evenly — for example, on waking, at lunchtime, in the late afternoon, and before bed. If you know you'll be exposed to a specific allergen (such as spending time outdoors during high pollen season), using the drops before exposure can help reduce the severity of your reaction.

How Long Can You Use Optrex Soothing Eye Drops for Itchy Eyes For?

These drops can be used for as long as your allergy symptoms persist — whether that's a few weeks during hay fever season or throughout the year if you have perennial allergic conjunctivitis. However, the bottle must be discarded 28 days after first opening, regardless of how much product remains. If your symptoms have not improved after several days of regular use, or if they worsen at any point, stop using the drops and consult your pharmacist or GP for further assessment.

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

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What Are the Most Common Side Effects of Optrex Soothing Eye Drops for Itchy Eyes?

Most people tolerate Optrex Soothing Eye Drops well, but as with any medicine, side effects can occur. The most frequently reported effects are mild and short-lived, typically resolving within a few minutes of instillation.

  • Transient stinging or burning sensation in the eye immediately after applying the drops
  • Temporary blurred vision — this usually clears quickly but avoid driving until your vision is fully restored
  • Mild watering or tearing of the eye
  • A brief sensation of grittiness or discomfort

What Are the Less Common Side Effects of Optrex Soothing Eye Drops for Itchy Eyes?

Less commonly, some people may notice additional effects that are still generally mild but worth being aware of. If any of these persist or feel particularly bothersome, speak to your pharmacist.

  • Redness of the eye not related to the original allergic condition
  • Eyelid swelling or puffiness
  • Sensitivity to light (photophobia)
  • Localised irritation around the eye area

What Are the Serious Side Effects of Optrex Soothing Eye Drops for Itchy Eyes?

Serious side effects from topical sodium cromoglicate are rare. However, you should stop using the drops immediately and seek urgent medical attention if you experience any signs of a severe allergic reaction (hypersensitivity). These can include sudden swelling of the face, lips, or throat, difficulty breathing, a widespread skin rash, or a rapid heartbeat. These reactions are uncommon but require prompt assessment by a healthcare professional.

What Should You Do If You Experience Side Effects of Optrex Soothing Eye Drops?

For mild side effects such as brief stinging or temporary blurred vision, no specific action is usually needed — simply wait a few minutes and the sensation should pass. If you experience persistent or worsening irritation, redness, or any new symptoms that concern you, stop using the drops and consult your pharmacist or GP. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Optrex Soothing Eye Drops Interact With Other Medicines?

No clinically significant drug interactions have been reported for topical sodium cromoglicate 2% eye drops at the concentrations used in this product. If you are using other eye drops or eye ointments at the same time, leave at least 5 minutes between each product to prevent dilution and ensure proper absorption. Eye ointments should always be applied last. If you are unsure whether these drops are compatible with any other treatment you are using, speak to your pharmacist before starting.

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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