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Murine Irritation & Redness Relief Eye Drops 10ml

Murine Irritation & Redness Relief Eye Drops 10ml

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  • ✔️ Temporarily relieves visible redness caused by dust, smoke, and chlorine
  • ✔️ Naphazoline HCl constricts eye blood vessels for fast redness relief
  • ✔️ Witch hazel soothes surface irritation and discomfort quickly
  • ✔️ Suitable for adults and children aged 12 and over
  • ✔️ Compact 10ml bottle — easy to carry and use on the go

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Are Murine Eye Drops Good for Red Eyes?

 

Red, irritated eyes are something most of us deal with at some point — whether it's from a long day staring at a screen, exposure to smoke, chlorine from a swimming pool, or simply a dusty environment. Eye drops for red eyes like Murine Irritation & Redness Relief Eye Drops 10ml offer a convenient, over-the-counter solution to help restore comfort and clarity quickly. Available for just £3.99, this product is a practical choice for adults who need fast-acting, temporary relief from visible redness and minor irritation. You can browse the full range of products in our eye care collection if you're looking for additional options to support your eye health.

These drops are not a treatment for underlying eye conditions — they're designed to address the cosmetic and comfort-related symptoms of redness and irritation caused by everyday environmental triggers. If your symptoms persist beyond a few days, or if you experience pain, vision changes, or discharge, it's important to seek advice from a pharmacist or GP rather than continuing to self-treat.

 

How Do Murine Irritation & Redness Relief Eye Drops Work?

 

The mechanism behind these drops is straightforward. They contain two active ingredients that work together to reduce redness and soothe discomfort:

  • Naphazoline hydrochloride 0.012% — a sympathomimetic vasoconstrictor that narrows the small blood vessels (capillaries) on the surface of the eye, reducing the appearance of redness within minutes.
  • Witch hazel 0.1% — a natural astringent that helps calm surface irritation and provides a mild soothing effect on the conjunctiva.

Together, these ingredients target the two most noticeable symptoms: the redness caused by dilated blood vessels, and the uncomfortable, gritty feeling that often accompanies irritation. The effect is temporary, typically lasting a few hours, which is why the drops can be used up to four times daily when needed.

 

Who Should Use Murine Irritation & Redness Relief Eye Drops?

 

These drops are suitable for adults and children aged 12 and over who are experiencing mild, temporary eye redness or irritation from identifiable environmental causes. They are not intended for people with chronic eye conditions, and they should not be used as a substitute for medical treatment if there is an underlying problem.

This product may be appropriate for you if:

  • Your eyes are red or irritated due to dust, smoke, wind, or chlorine exposure
  • You experience occasional screen-related eye fatigue with visible redness
  • You need a quick, temporary cosmetic fix for red eyes before an important event
  • You are aged 12 or over and do not have a diagnosed eye condition

 

How Do Murine Eye Drops Compare to Other Redness Relief Options?

 

Feature Murine Irritation & Redness Relief Optrex Refreshing Eye Drops
Active ingredient Naphazoline HCl + Witch hazel Distilled witch hazel
Redness relief Yes — vasoconstrictor action Mild — soothing only
Suitable for contact lens wearers No (remove lenses first) Check individual product label
OTC availability Yes Yes

 

How Should You Store Murine Irritation & Redness Relief Eye Drops?

 

Store these drops below 25°C, away from direct sunlight and out of reach of children. Once opened, the bottle should be discarded after 28 days — even if there is solution remaining — to reduce the risk of contamination and infection. Never share eye drops with another person. If you're also managing other aspects of your health alongside eye care, you might find it useful to explore our allergy and hay fever range, as allergic reactions are a common cause of eye redness and irritation.

Check the expiry date on the packaging before use. Do not use the drops if the solution appears discoloured or cloudy. The dropper tip should never touch your eye, eyelid, or any other surface, as this can introduce bacteria into the bottle.

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.

Murine Irritation & Redness Relief Eye Drops 10ml specifications
Treatment category Eye care — redness and irritation relief
Mechanism of action Vasoconstriction (naphazoline HCl) + astringent action (witch hazel)
Effective for Temporary relief of red, irritated eyes from environmental causes
Suitable for Adults and children aged 12 and over
Active ingredient Naphazoline hydrochloride 0.012%, Witch hazel 0.1%
Pack size 10ml
UK classification General Sale List (GSL)
Drug class Sympathomimetic vasoconstrictor / astringent
Preparation Aqueous eye drop solution
Route of administration Ophthalmic (topical to the eye)

Specifications of Murine Irritation & Redness Relief Eye Drops 10ml

 

What Are Murine Irritation & Redness Relief Eye Drops and What Are They Used For?

 

Murine Irritation & Redness Relief Eye Drops 10ml are an over-the-counter ophthalmic solution used to temporarily relieve redness and irritation of the eye. They are indicated for symptoms caused by environmental factors such as dust, smoke, wind, chlorine, and prolonged screen use. The drops work by constricting the small blood vessels on the surface of the eye, reducing the appearance of redness, while the witch hazel component soothes surface discomfort. They are not a treatment for eye infections, glaucoma, or any diagnosed eye condition.

These drops are classified as a General Sale List (GSL) medicine in the UK, meaning they can be purchased without a prescription. However, that doesn't mean they're suitable for everyone — always read the label carefully and speak to a pharmacist if you're unsure.

 

What Do You Need to Know Before Using Murine Irritation & Redness Relief Eye Drops?

 

Before using these drops, it's important to be aware of the following contraindications and warnings:

  • Do not use if you have narrow-angle glaucoma or are at risk of angle-closure glaucoma
  • Do not use in children under 12 years of age
  • Do not use if you are allergic to naphazoline hydrochloride, witch hazel, or any other ingredient in the formulation
  • Do not use while wearing soft contact lenses — remove lenses before application and wait at least 15 minutes before reinserting
  • Do not use for more than 3 consecutive days without medical advice, as prolonged use can cause rebound redness (rhinitis medicamentosa-like effect in the eye)
  • Seek medical advice before use if you are pregnant, breastfeeding, or trying to conceive
  • Seek medical advice before use if you have cardiovascular disease, hypertension, hyperthyroidism, or diabetes

Known drug interactions to be aware of:

  • Monoamine oxidase inhibitors (MAOIs) — concurrent use with naphazoline may cause a hypertensive crisis; avoid use if you are taking or have recently stopped taking an MAOI
  • Tricyclic antidepressants — may potentiate the vasoconstrictive effects of naphazoline

 

How Should You Use Murine Irritation & Redness Relief Eye Drops?

 

Using eye drops correctly makes a real difference to both their effectiveness and your safety. Follow these steps carefully each time you use the product:

  1. Wash your hands thoroughly with soap and water before handling the bottle
  2. Remove contact lenses if you wear them
  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 above the eye and instil 1 to 2 drops into the pocket
  6. Close your eye gently for 1 to 2 minutes — do not blink excessively
  7. Press lightly on the inner corner of your eye (the lacrimal punctum) to reduce systemic absorption
  8. Replace the cap immediately after use
Indication Age Group Dose Frequency
Eye redness and irritation Adults and children 12+ 1–2 drops per affected eye Up to 4 times daily, max 3 consecutive days
Not applicable Under 12 years Do not use

 

What Are the Possible Side Effects of Murine Irritation & Redness Relief Eye Drops?

 

Like all medicines, these drops can cause side effects, although not everyone will experience them. If you notice anything unusual or concerning, stop using the drops and speak to a pharmacist or GP. You can also find general guidance on managing eye conditions through the NHS. If you're dealing with allergy-related eye symptoms alongside other hay fever symptoms, it may be worth exploring our allergy and hay fever range for a more targeted approach.

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

  • Temporary stinging or burning sensation immediately after application
  • Mild watering of the eye
  • Transient blurred vision immediately after instillation

Less common side effects (may affect up to 1 in 100 people):

  • Rebound redness (eyes appear redder once the drops wear off, particularly with prolonged use)
  • Pupil dilation (mydriasis) — particularly if the drops contact the iris directly
  • Headache
  • Raised intraocular pressure — particularly in those with undiagnosed glaucoma
  • Systemic effects such as palpitations or elevated blood pressure if large amounts are absorbed (rare)

 

How Should You Store Murine Irritation & Redness Relief Eye Drops?

 

Correct storage helps maintain the safety and effectiveness of the product. Follow these guidelines:

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Keep out of the sight and reach 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 solution remains
  • Do not freeze
  • Do not share the bottle with another person

If you're managing multiple health products at home, our first aid collection includes a range of items to help you stay prepared for everyday health needs.

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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 Murine Irritation & Redness Relief Eye Drops online in the UK?

You can buy Murine Irritation & Redness Relief Eye Drops 10ml directly from Cured Pharmacy for just £3.99, with no prescription required. They are a General Sale List medicine, so they're also available in pharmacies and supermarkets across the UK. Ordering online is a convenient option if you'd prefer to have them delivered to your door. Browse our full eye care collection for more options.

How do Murine Irritation & Redness Relief Eye Drops work in the eye?

The drops contain naphazoline hydrochloride, a sympathomimetic vasoconstrictor that narrows the tiny blood vessels on the surface of the eye, reducing visible redness within minutes. Witch hazel acts as a mild astringent to soothe surface irritation at the same time. The combined effect is a reduction in both the redness and the uncomfortable, gritty sensation that often accompanies eye irritation.

How do I use Murine Irritation & Redness Relief Eye Drops step by step?

Wash your hands first, then tilt your head back and gently pull down your lower eyelid to create a small pocket. Instil 1 to 2 drops into the pocket, close your eye gently for a minute or two, and press lightly on the inner corner of your eye to minimise systemic absorption. Replace the cap immediately and avoid touching the dropper tip to any surface.

How often can I use Murine eye drops for red eyes?

You can use 1 to 2 drops in the affected eye up to four times daily. It's important not to use them for more than 3 consecutive days without speaking to a pharmacist or GP, as prolonged use can cause rebound redness — where the eyes become redder once the drops wear off. These drops are intended for short-term, occasional use only.

What are the side effects of Murine Irritation & Redness Relief Eye Drops?

The most common side effects are temporary stinging or burning immediately after application, mild watering of the eye, and brief blurred vision. Less commonly, prolonged use can lead to rebound redness, and in rare cases, systemic effects such as palpitations or raised blood pressure may occur if significant amounts are absorbed. If you experience any unusual symptoms, stop using the drops and speak to a pharmacist.

Can I use Murine eye drops if I wear contact lenses?

No — you should always remove your contact lenses before applying these drops and wait at least 15 minutes before reinserting them. The preservatives in the formulation can be absorbed by soft contact lens material, potentially causing irritation or damage to the lens. This applies to both soft and gas-permeable lenses.

Are Murine Irritation & Redness Relief Eye Drops safe to use during pregnancy?

If you are pregnant, breastfeeding, or trying to conceive, you should speak to your GP or pharmacist before using these drops. Naphazoline is a vasoconstrictor and its safety profile during pregnancy has not been fully established in clinical literature. Your healthcare provider can advise on the most appropriate option for your situation.

Who should not use Murine Irritation & Redness Relief Eye Drops?

These drops are not suitable for children under 12, people with narrow-angle or angle-closure glaucoma, or those taking monoamine oxidase inhibitors (MAOIs). People with cardiovascular disease, hypertension, hyperthyroidism, or diabetes should seek medical advice before use. Anyone with a known allergy to naphazoline, witch hazel, or any other ingredient should avoid this product entirely.

What happens if I use Murine eye drops for too long?

Using these drops for more than 3 consecutive days can lead to a phenomenon known as rebound redness, where the blood vessels in the eye dilate again once the vasoconstricting effect wears off — sometimes more severely than before. This can create a cycle of dependency on the drops. If you find yourself needing them daily, speak to a pharmacist or GP about the underlying cause of your eye redness.

What are the alternatives to Murine Irritation & Redness Relief Eye Drops?

For mild irritation without significant redness, preservative-free lubricating drops such as Hylo-Fresh or simple saline eye drops may be more appropriate for regular use. If your redness is allergy-related, antihistamine eye drops such as sodium cromoglicate may be more effective. You can explore a wider range of options in our eye care collection or speak to a pharmacist for tailored advice.

Can Murine eye drops be used for eye infections?

No — Murine Irritation & Redness Relief Eye Drops are not an antibiotic or antiviral treatment and should not be used to treat eye infections such as bacterial conjunctivitis. If you have symptoms of an eye infection — including discharge, crusting, significant pain, or swelling — you should seek advice from a pharmacist or GP. Using these drops in place of appropriate treatment could delay recovery.

How quickly do Murine Irritation & Redness Relief Eye Drops work?

Most people notice a visible reduction in redness within a few minutes of application, as naphazoline acts relatively quickly to constrict the surface blood vessels. The soothing effect from witch hazel also tends to be felt soon after instillation. The overall effect typically lasts for several hours, though this can vary between individuals.

Do Murine eye drops interact with any other medicines?

Yes — the most clinically significant interaction is with monoamine oxidase inhibitors (MAOIs), where concurrent use with naphazoline can potentially cause a hypertensive crisis. Tricyclic antidepressants may also potentiate the vasoconstrictive effects of naphazoline. Always inform your pharmacist of all medicines you are taking, including herbal remedies and supplements, before using these drops.

How should I store Murine Irritation & Redness Relief Eye Drops?

Store the drops below 25°C, away from direct sunlight and heat, and keep them out of reach of children. Once opened, the bottle must be discarded after 28 days — even if solution remains — to prevent the risk of contamination. Never use the drops after the expiry date printed on the packaging, and do not share the bottle with anyone else.

What is the latest guidance on using vasoconstrictor eye drops for redness?

Current clinical guidance recommends that vasoconstrictor eye drops such as those containing naphazoline should only be used for short-term, occasional relief of redness caused by identifiable environmental triggers. Persistent or unexplained eye redness warrants a clinical assessment to rule out underlying conditions such as dry eye disease, uveitis, or glaucoma. The NHS advises seeing a GP if eye redness does not improve within a few days or is accompanied by pain or vision changes.

How Should You Use Murine Irritation & Redness Relief Eye Drops?

Using these drops correctly is straightforward, but a few simple steps make a real difference to both comfort and safety. Always wash your hands before handling the bottle, and never allow the dropper tip to touch your eye or any other surface.

What Is the Correct Dose of Murine Irritation & Redness Relief Eye Drops?

The recommended dose is 1 to 2 drops per affected eye, up to four times daily. Do not exceed this dose, and do not use for more than 3 consecutive days without seeking medical advice. Using more drops than recommended will not improve the effect and may increase the risk of side effects.

When Is the Best Time to Use Murine Irritation & Redness Relief Eye Drops?

These drops are best used as and when symptoms arise — for example, after exposure to a dusty environment, after swimming in a chlorinated pool, or when screen-related eye fatigue causes visible redness. Because the effect is temporary, you can time each application to coincide with when you need your eyes to look and feel their best. Avoid using them as a preventative measure before exposure, as this does not provide any additional benefit and increases the risk of overuse.

How Long Can You Use Murine Irritation & Redness Relief Eye Drops For?

These drops are intended for short-term, occasional use only. You should not use them for more than 3 consecutive days. If your symptoms persist beyond this period, or if redness and irritation return frequently, this may indicate an underlying condition — such as dry eye disease, allergic conjunctivitis, or another ocular problem — that requires proper assessment and treatment. Speak to your pharmacist or GP if you find yourself reaching for these drops regularly. Once opened, the bottle must be discarded after 28 days regardless of how much solution remains.

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 Murine Irritation & Redness Relief Eye Drops?

Most people tolerate these drops well when used as directed. The most frequently reported side effects are mild and short-lived, typically resolving within a few minutes of application.

  • Temporary stinging or burning sensation immediately after instillation
  • Mild watering or tearing of the eye
  • Brief blurred vision immediately after application

What Are the Less Common Side Effects of Murine Irritation & Redness Relief Eye Drops?

Less commonly, some people may experience side effects that are more persistent or noticeable, particularly if the drops are used more frequently or for longer than recommended.

  • Rebound redness — eyes appear redder once the vasoconstricting effect wears off, especially with prolonged use
  • Pupil dilation (mydriasis) — particularly if the drops make direct contact with the iris
  • Headache
  • A sensation of dryness in the eye after the initial soothing effect subsides

What Are the Serious Side Effects of Murine Irritation & Redness Relief Eye Drops?

Serious side effects are rare but can occur, particularly in people with pre-existing cardiovascular conditions or those taking interacting medicines. Naphazoline can be absorbed systemically through the nasolacrimal duct, and in susceptible individuals this may cause:

  • Raised blood pressure (hypertension)
  • Palpitations or irregular heartbeat
  • Raised intraocular pressure — of particular concern in people with undiagnosed glaucoma
  • In very rare cases, systemic sympathomimetic effects including tremor or anxiety

What Should You Do If You Experience Side Effects of Murine Irritation & Redness Relief Eye Drops?

If you experience mild side effects such as temporary stinging, stop using the drops and allow the sensation to pass — this usually resolves within a few minutes. If you notice rebound redness developing, do not apply more drops; instead, speak to a pharmacist about alternative options. For any serious or unexpected symptoms — particularly cardiovascular effects or significant changes in vision — stop using the drops immediately and seek medical advice. Do not attempt to manage serious side effects at home without professional guidance.

Can Murine Irritation & Redness Relief Eye Drops Interact With Other Medicines?

Yes. The most clinically important interaction is with monoamine oxidase inhibitors (MAOIs) — using naphazoline alongside an MAOI can potentially trigger a hypertensive crisis. Tricyclic antidepressants may also enhance the vasoconstrictive effects of naphazoline. If you are taking any prescription medicines, including antidepressants, antihypertensives, or medicines for thyroid conditions, speak to your pharmacist before using these drops. Always mention all medicines you take, including over-the-counter products and herbal supplements.

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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