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Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant - 15ml

Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant - 15ml

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  • ✔️ Temporarily numbs sore throat pain within seconds of application
  • ✔️ Contains benzocaine 0.71% w/v for fast localised relief
  • ✔️ Suitable for adults and children aged 6 years and over
  • ✔️ Blackcurrant flavour makes throat treatment more tolerable
  • ✔️ Compact 15ml bottle — easy to carry and use on the go

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What Is Chloraseptic Throat Spray and How Does It Help?

 

A sore throat can stop you in your tracks. Whether it hits first thing in the morning or creeps up during a long day, that raw, scratchy discomfort is hard to ignore. Chloraseptic throat spray is a fast-acting, over-the-counter anaesthetic spray designed to temporarily numb the pain at the back of your throat, giving you relief when you need it most. The Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant 15ml is a well-established option available without a prescription, priced at just £4.79. You can browse the full range of cold and flu remedies at Cured Pharmacy if you need additional support alongside this spray.

Sore throats are one of the most common reasons people visit a pharmacist in the UK. According to the NHS, most sore throats are caused by viral infections and will resolve on their own within a week. In the meantime, symptomatic relief is often the most practical approach — and that is exactly what this spray is designed to provide.

 

How Does Ultra Chloraseptic Throat Spray Work?

 

The active ingredient is benzocaine 0.71% w/v, a local anaesthetic. When you spray it onto the back of your throat, benzocaine works by temporarily blocking sodium channels in the nerve endings of the throat's mucosal lining. This interrupts the transmission of pain signals to the brain, producing a numbing effect within seconds.

  • Benzocaine binds to voltage-gated sodium channels in sensory nerve fibres
  • Sodium channel blockade prevents nerve depolarisation
  • Pain signal transmission to the brain is temporarily interrupted
  • Localised numbness develops rapidly at the site of application
  • Effect is temporary and wears off as benzocaine is metabolised locally

It is worth noting that this spray treats the symptom — the pain — rather than the underlying cause. If your sore throat is due to a bacterial infection such as streptococcal pharyngitis, you may need separate treatment from your GP.

 

Who Is Ultra Chloraseptic Throat Spray Suitable For?

 

This spray is suitable for most adults and children aged 6 years and over who are experiencing a sore throat. It is particularly useful for people who find swallowing tablets or lozenges difficult, or who want rapid localised relief without taking a systemic painkiller.

  • Adults with a sore throat caused by a cold, flu, or minor infection
  • Children aged 6 years and over (under adult supervision)
  • People who prefer a topical option over oral analgesics
  • Those looking for quick relief before a GP appointment

It is not suitable for children under 6 years of age. People with a known allergy to benzocaine or other ester-type local anaesthetics should not use this product.

 

How Does Ultra Chloraseptic Compare to Other Sore Throat Sprays?

 

Feature Ultra Chloraseptic Blackcurrant Spray Difflam Throat Spray
Active ingredient Benzocaine 0.71% w/v Benzydamine hydrochloride 0.15% w/v
Mechanism Local anaesthetic (nerve block) Anti-inflammatory and local anaesthetic
Suitable age 6 years and over 12 years and over (standard)
Flavour Blackcurrant Mint or unflavoured

 

How Should You Store Ultra Chloraseptic Throat Spray?

 

Store this product below 25°C, away from direct sunlight and heat sources. Keep the bottle upright and ensure the cap is replaced after each use. As with all medicines, keep it out of the reach and sight of children. Do not use after the expiry date printed on the packaging. If you are also managing other symptoms such as pain elsewhere, you may find our pain relief collection helpful for complementary options.

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.

Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant 15ml specifications
Treatment category Sore throat relief
Mechanism of action Local anaesthetic — sodium channel blockade
Effective for Temporary relief of sore throat pain
Suitable for Adults and children aged 6 years and over
Active ingredient Benzocaine 0.71% w/v
Pack size 15ml
UK classification General Sale Medicine (GSL)
Drug class Local anaesthetic (ester type)
Preparation Oropharyngeal spray solution
Route of administration Oropharyngeal (throat spray)

Specifications of Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant 15ml

 

What Is Ultra Chloraseptic Throat Spray and What Is It Used For?

 

Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant 15ml is an over-the-counter medicine used for the temporary relief of pain associated with a sore throat. It contains benzocaine 0.71% w/v as its active ingredient — a local anaesthetic that numbs the throat lining on contact. It is used to manage discomfort caused by minor throat infections, colds, flu, and general throat irritation. The NHS advises that most sore throats clear up on their own within a week, but symptomatic relief can make that time considerably more comfortable.

 

What Do You Need to Know Before Using Ultra Chloraseptic Throat Spray?

 

Before using this spray, read the following carefully. There are certain situations where this product should not be used, and others where caution is needed.

Do not use this spray if you:

  • Are allergic to benzocaine or any other ester-type local anaesthetic
  • Are allergic to any other ingredient in the formulation
  • Are giving it to a child under 6 years of age
  • Have a known hypersensitivity to para-aminobenzoic acid (PABA) derivatives

Take care and speak to a pharmacist or GP if you:

  • Are pregnant or breastfeeding
  • Have a severe or worsening sore throat with high fever, headache, or rash
  • Have difficulty breathing or swallowing
  • Have had a sore throat lasting more than three days without improvement

Drug interactions:

  • No clinically significant interactions are known at OTC doses of benzocaine spray
  • If you are taking any prescribed medicines, check with your pharmacist before use

 

How Should You Use Ultra Chloraseptic Throat Spray?

 

Using this spray correctly ensures you get the most effective relief. Always follow the instructions on the label. If you are unsure, ask your pharmacist — they are well placed to advise you. You can also explore our ear, nose and throat collection for related products that may complement your treatment.

  1. Remove the cap from the spray bottle
  2. Open your mouth wide
  3. Direct the nozzle towards the back of your throat
  4. Press the pump firmly to release three sprays
  5. Do not swallow immediately — allow the spray to coat the throat
  6. Replace the cap after use
  7. Repeat every two hours if needed, up to a maximum of six times in 24 hours
Age Group Dose Frequency Maximum daily doses
Adults and children aged 12+ 3 sprays to back of throat Every 2 hours 6 times in 24 hours
Children aged 6–11 3 sprays to back of throat Every 2 hours 6 times in 24 hours (under adult supervision)
Children under 6 Not suitable — do not use

 

What Are the Possible Side Effects of Ultra Chloraseptic Throat Spray?

 

Like all medicines, this spray can cause side effects, although not everyone experiences them. Most side effects are mild and related to the local anaesthetic action of benzocaine.

Common side effects:

  • Temporary numbness or tingling in the mouth and throat
  • Mild burning sensation at the site of application
  • Altered taste sensation

Less common side effects:

  • Hypersensitivity reactions such as skin rash or itching
  • Swelling of the mouth, lips, or throat (angioedema) — seek urgent medical attention if this occurs
  • Methaemoglobinaemia — a rare but serious condition associated with benzocaine; symptoms include bluish skin, shortness of breath, and fatigue. Stop use immediately and seek emergency medical help

If you notice any side effect not listed here, or if a listed side effect becomes severe, stop using the spray and contact your pharmacist or GP. The NHS provides guidance on when to seek urgent help for throat symptoms.

 

How Should You Store Ultra Chloraseptic Throat Spray?

 

Correct storage helps maintain the product's safety and effectiveness. If you are also managing other health concerns, our oral health collection includes a range of products to support your mouth and throat health.

  • Store below 25°C
  • Keep away from direct sunlight and heat sources
  • Do not freeze
  • Keep the bottle upright with the cap firmly replaced after each use
  • Keep out of the reach and sight of children
  • Do not use after the expiry date printed on the bottle or carton
  • Do not dispose of medicines via wastewater or household waste — return unused medicines to your pharmacy

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 Ultra Chloraseptic Throat Spray online in the UK?

You can buy Ultra Chloraseptic Anaesthetic Throat Spray Blackcurrant 15ml directly from Cured Pharmacy online for £4.79. It is a General Sale Medicine and does not require a prescription. Simply add it to your basket and it will be dispatched to your door.

How does chloraseptic throat spray work in the body?

The spray contains benzocaine 0.71% w/v, which is a local anaesthetic. It works by temporarily blocking sodium channels in the nerve endings of your throat lining, which stops pain signals from reaching your brain. The numbing effect begins within seconds of application and lasts for a short period.

How do I use Ultra Chloraseptic Throat Spray step by step?

Open your mouth wide, point the nozzle towards the back of your throat, and press the pump to release three sprays. Try not to swallow immediately so the spray can coat the throat lining. Repeat every two hours if needed, but do not exceed six doses in any 24-hour period.

What is the correct dose of Ultra Chloraseptic Throat Spray for adults?

Adults should use three sprays directed to the back of the throat, repeated every two hours as needed. The maximum number of doses is six in any 24-hour period. Do not exceed this limit, and if symptoms persist beyond three days, consult a pharmacist or GP.

When is the best time to use Ultra Chloraseptic Throat Spray?

Use the spray whenever your sore throat pain is at its most uncomfortable — many people find it particularly helpful first thing in the morning, before meals, or before speaking for extended periods. It can be used up to every two hours throughout the day as needed. Avoid eating or drinking immediately after use to allow the spray to work effectively.

What are the side effects of Ultra Chloraseptic Throat Spray?

The most common side effect is temporary numbness or tingling in the mouth and throat, which is expected given the anaesthetic action. Less commonly, some people may experience a mild burning sensation or altered taste. Rarely, hypersensitivity reactions such as rash or swelling can occur — stop use immediately and seek medical advice if this happens.

Is Ultra Chloraseptic Throat Spray safe for children?

Yes, it is suitable for children aged 6 years and over when used at the correct dose and under adult supervision. It must not be used in children under 6 years of age. If you are unsure whether it is appropriate for your child, speak to a pharmacist before use.

Can I use chloraseptic throat spray if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, you should speak to your pharmacist or GP before using this spray. Although benzocaine is applied topically and systemic absorption is minimal, professional guidance is always recommended during pregnancy and whilst breastfeeding. Your pharmacist can help you weigh up the benefits and any potential risks.

Who should not use Ultra Chloraseptic Throat Spray?

This spray is not suitable for children under 6 years of age, or for anyone with a known allergy to benzocaine or other ester-type local anaesthetics. People with a severe sore throat accompanied by high fever, difficulty breathing, or a rash should seek medical attention rather than relying on this spray alone. Always check the full list of ingredients if you have known allergies.

How long can I use Ultra Chloraseptic Throat Spray for?

This spray is intended for short-term use only. If your sore throat has not improved after three days of use, or if it gets worse, you should stop using the spray and consult a pharmacist or GP. Prolonged or worsening symptoms may indicate a bacterial infection or another condition that requires different treatment.

What happens if I use too much Ultra Chloraseptic Throat Spray?

Using more than the recommended dose increases the risk of side effects, including excessive numbness and, in rare cases, a serious condition called methaemoglobinaemia, which affects the blood's ability to carry oxygen. If you accidentally use too much, contact NHS 111 or your nearest A&E department. Always stick to the recommended maximum of six doses in 24 hours.

What are the alternatives to Ultra Chloraseptic Throat Spray?

Alternatives include Difflam Throat Spray (benzydamine hydrochloride), throat lozenges containing local anaesthetics such as lidocaine, or systemic pain relief such as paracetamol or ibuprofen. You can explore a wider range of options in our ear, nose and throat collection. The best choice depends on your symptoms, age, and any other medicines you are taking.

Can I use Ultra Chloraseptic Throat Spray alongside paracetamol or ibuprofen?

Yes, in most cases you can use this throat spray alongside paracetamol or ibuprofen, as benzocaine acts locally in the throat and does not interact with these medicines at standard OTC doses. However, if you are taking any prescribed medicines or have an underlying health condition, check with your pharmacist first. Using a combination approach can sometimes provide more complete relief from sore throat symptoms.

What are the latest studies on benzocaine throat sprays?

Benzocaine has been used as a topical local anaesthetic for decades and its mechanism is well established in clinical literature. Current evidence supports its short-term use for symptomatic relief of oropharyngeal pain. Regulatory bodies including the MHRA continue to monitor its safety profile, particularly regarding the rare risk of methaemoglobinaemia with excessive use.

Does Ultra Chloraseptic Throat Spray treat the infection causing my sore throat?

No — this spray only relieves the pain associated with a sore throat; it does not treat the underlying infection. Most sore throats are caused by viruses and will resolve without antibiotics, as the NHS advises. If you suspect a bacterial infection, or if your symptoms are severe or prolonged, see your GP. You may also find it useful to browse our cold and flu range for additional symptomatic relief products.

How Should You Use Ultra Chloraseptic Anaesthetic Throat Spray?

Using this spray correctly is straightforward, but it is worth taking a moment to get the technique right so the benzocaine reaches the back of your throat where it is needed most. Always read the label before use and follow the instructions provided with the product.

Follow these steps each time you use the spray:

What Is the Correct Dose of Ultra Chloraseptic Throat Spray?

The dose is the same for adults and children aged 6 and over — three sprays to the back of the throat per dose. Do not increase the number of sprays per dose, as this will not improve the effect and may increase the risk of side effects.

When Is the Best Time to Use Ultra Chloraseptic Throat Spray?

You can use this spray at any point during the day when your sore throat pain is causing discomfort. Many people find it most helpful first thing in the morning when throat pain tends to be at its worst, before meals to make eating and swallowing more comfortable, or before speaking at length. Avoid eating or drinking for a few minutes after using the spray to allow the benzocaine to take effect without being washed away immediately.

If you are using it before bed, be aware that the numbing effect is temporary and will wear off during the night. It is not intended to be used as a sleep aid.

How Long Can You Use Ultra Chloraseptic Throat Spray For?

This spray is designed for short-term use only. You should not use it for more than three consecutive days without seeking advice from a pharmacist or GP. If your sore throat is not improving after three days, or if it is getting worse, there may be an underlying cause — such as a bacterial infection — that requires a different treatment approach.

If you develop a high fever, a rash, difficulty breathing or swallowing, or swollen glands alongside your sore throat, stop using the spray and seek medical attention promptly.

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 Ultra Chloraseptic Throat Spray?

Because benzocaine is a local anaesthetic, the most frequently reported side effects are directly related to its numbing action. These are generally mild, expected, and temporary.

  • Temporary numbness or tingling in the mouth, tongue, and throat
  • Mild burning or stinging sensation at the site of application
  • Altered or reduced taste sensation shortly after use

These effects typically resolve within a short time as the benzocaine wears off. They are not usually a reason to stop using the spray unless they are particularly bothersome.

What Are the Less Common Side Effects of Ultra Chloraseptic Throat Spray?

Less commonly, some people may experience reactions that go beyond the expected local anaesthetic effect. These are worth being aware of, even if they are unlikely.

  • Skin rash or itching, which may indicate a mild allergic reaction
  • Redness or irritation of the mouth or throat lining
  • Nausea if a significant amount of the spray is swallowed
  • Headache in rare cases

If you notice any of these effects and they persist or worsen, stop using the spray and speak to your pharmacist.

What Are the Serious Side Effects of Ultra Chloraseptic Throat Spray?

Serious side effects are rare but important to know about. The most significant risk associated with benzocaine — particularly with excessive use — is methaemoglobinaemia. This is a condition where the blood's ability to carry oxygen is reduced. Symptoms include bluish or greyish discolouration of the skin or lips, shortness of breath, rapid heart rate, dizziness, and fatigue. If you or someone else experiences these symptoms after using this spray, stop use immediately and call 999 or go to your nearest A&E department.

Anaphylaxis — a severe, life-threatening allergic reaction — is extremely rare but possible with any medicine. Signs include sudden swelling of the face, lips, or throat, difficulty breathing, and a rapid drop in blood pressure. This requires emergency medical treatment.

What Should You Do If You Experience Side Effects?

For mild side effects such as temporary numbness or tingling, no action is usually needed — these will resolve on their own. If you experience a rash, swelling, or any sign of an allergic reaction, stop using the spray immediately and contact your pharmacist or GP. For serious symptoms such as difficulty breathing or bluish skin discolouration, call 999 without delay. You can also report side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Ultra Chloraseptic Throat Spray Interact With Other Medicines?

At standard over-the-counter doses, benzocaine throat spray is not known to have clinically significant interactions with other commonly used medicines such as paracetamol, ibuprofen, or antihistamines. However, if you are taking prescribed medicines — particularly those that can also cause methaemoglobinaemia, such as certain antibiotics or antimalarials — you should check with your pharmacist before use. Always tell your pharmacist about all medicines you are currently taking, including herbal remedies and 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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