
The Story
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 pain at the back of your throat is hard to ignore. Chloraseptic throat spray is a fast-acting, over-the-counter option designed to numb that discomfort quickly, without the need for tablets or lozenges. Ultra Chloraseptic Anaesthetic Throat Spray Menthol 15ml contains benzocaine 0.71% w/v — a well-established local anaesthetic — and delivers targeted relief directly where it hurts. You can find it and other throat and respiratory remedies in our Ear, Nose & Throat collection.
Sore throats are one of the most common reasons people visit a pharmacist in the UK. The NHS notes that most sore throats are caused by viral infections and resolve on their own within a week, but that doesn't make the pain any easier to manage in the meantime. That's where a targeted anaesthetic spray can genuinely help — offering relief in seconds rather than waiting for a systemic painkiller to kick in.
How Does Ultra Chloraseptic Throat Spray Work?
The active ingredient, benzocaine, is a local anaesthetic that works by temporarily blocking sodium channels in the nerve endings of the throat's mucosal lining. When those channels are blocked, pain signals can't travel to the brain — so you feel relief almost immediately after spraying.
- Benzocaine is absorbed into the superficial tissues of the throat lining on contact.
- It inhibits nerve conduction locally, reducing the sensation of pain without affecting surrounding areas.
- The menthol flavour adds a cooling sensation that many people find soothing alongside the anaesthetic effect.
- Relief typically begins within seconds and can last around 15 to 20 minutes per application.
It's 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 strep throat, you may need antibiotics prescribed by a GP.
Who Is Ultra Chloraseptic Throat Spray Suitable For?
This spray is suitable for most adults and children aged 6 and over who are experiencing a sore throat. It's particularly useful when you need fast, localised relief — for example, before eating, speaking, or swallowing medication. If you're also managing cold and flu symptoms alongside a sore throat, you might want to explore our Cold and Flu collection for complementary remedies.
- Adults and teenagers with a painful sore throat.
- Children aged 6 and over (under adult supervision).
- People who struggle to swallow tablets or lozenges.
- Those who want rapid, targeted relief without systemic medication.
How Does Ultra Chloraseptic Compare to Other Sore Throat Remedies?
| Feature | Ultra Chloraseptic Throat Spray | Throat Lozenges (e.g. Strepsils) |
|---|---|---|
| Speed of action | Seconds (direct mucosal contact) | Several minutes (dissolves slowly) |
| Active ingredient | Benzocaine 0.71% w/v | Amylmetacresol / 2,4-dichlorobenzyl alcohol |
| Suitable for children | Ages 6 and over | Varies by product (typically 6+) |
| Mechanism | Local anaesthetic (numbing) | Antiseptic (antimicrobial) |
How Should You Store Ultra Chloraseptic Throat Spray?
Store your chloraseptic throat spray below 25°C, away from direct sunlight and heat sources. Keep the cap on when not in use to prevent contamination of the nozzle. Always keep medicines out of the reach and sight of children — this is especially important with a spray that has a pleasant menthol flavour.
Check the expiry date printed on the bottle before use. Do not use the product after the stated date. If you're unsure whether the product is still suitable, speak to your pharmacist before using it.
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 Menthol 15ml specifications
| Treatment category | Sore throat / Oropharyngeal pain relief |
| Mechanism of action | Local anaesthetic — benzocaine blocks sodium channels in nerve endings |
| Effective for | Sore throat pain relief |
| Suitable for | Adults and children aged 6 and over |
| Active ingredient | Benzocaine 0.71% w/v |
| Pack size | 15ml |
| UK classification | General Sale Medicine (GSL) |
| Drug class | Local anaesthetic |
| Preparation | Oropharyngeal spray solution |
| Route of administration | Oropharyngeal (spray into mouth/throat) |
Specifications of Ultra Chloraseptic Anaesthetic Throat Spray Menthol 15ml
What Is Ultra Chloraseptic Throat Spray and What Is It Used For?
Ultra Chloraseptic Anaesthetic Throat Spray Menthol 15ml is an over-the-counter medicine used to relieve the pain associated with sore throats. It contains benzocaine 0.71% w/v, a local anaesthetic that temporarily numbs the throat lining to reduce discomfort. The menthol flavour provides an additional cooling sensation. This product is classified as a General Sale Medicine (GSL) in the UK, meaning it can be purchased without a prescription. It is intended for short-term symptomatic relief only and does not treat the underlying cause of a sore throat.
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 may not be appropriate for you.
Do not use this spray if you:
- Are allergic to benzocaine, any other local anaesthetic of the ester type, or any other ingredient in the product.
- Are under 6 years of age.
- Have a known hypersensitivity to para-aminobenzoic acid (PABA) derivatives.
- Have a rare inherited condition called glucose-6-phosphate dehydrogenase (G6PD) deficiency, as benzocaine may cause methaemoglobinaemia.
Speak to your pharmacist or GP before use if you:
- Are pregnant or breastfeeding.
- Have a severe or persistent sore throat lasting more than 3 days.
- Have a sore throat accompanied by high fever, headache, nausea, or rash — these may indicate a more serious condition requiring medical assessment.
- Are taking any other medicines, including those bought without a prescription.
Known drug interactions:
- No clinically significant interactions are known at standard OTC doses of benzocaine 0.71% w/v.
- If you are taking medicines that can cause methaemoglobinaemia (such as certain antimalarials or nitrates), seek pharmacist advice before use.
How Should You Use Ultra Chloraseptic Throat Spray?
Always use this product exactly as directed on the label or as advised by your pharmacist. Do not exceed the recommended dose. If you are also managing pain elsewhere in the body, our Pain Relief collection includes a range of complementary options.
- Remove the cap from the spray nozzle.
- Open your mouth wide and direct the nozzle towards the back of your throat.
- Press the pump firmly to release 3 sprays directly onto the affected area.
- Do not swallow immediately — allow the spray to coat the throat lining briefly.
- Replace the cap after use.
- Repeat every 2 hours if needed, up to a maximum of 8 doses (24 sprays) in any 24-hour period.
| Age Group | Dose | Frequency | Maximum in 24 hours |
|---|---|---|---|
| Adults and children aged 12+ | 3 sprays | Every 2 hours | 8 doses (24 sprays) |
| Children aged 6–11 | 3 sprays | Every 2 hours | 8 doses (under adult supervision) |
| Children under 6 | Not recommended | ||
What Are the Possible Side Effects of Ultra Chloraseptic Throat Spray?
Like all medicines, this product can cause side effects, although not everyone experiences them. Most side effects are mild and localised.
Common side effects:
- Temporary numbness or tingling in the mouth or lips.
- Altered or reduced taste sensation immediately after use.
- Mild burning or stinging sensation on application.
Less common side effects:
- Localised irritation or redness of the throat or mouth lining.
- Nausea if large amounts are accidentally swallowed.
- Hypersensitivity reactions including rash, itching, or swelling — stop use immediately and seek medical advice if these occur.
In very rare cases, benzocaine has been associated with methaemoglobinaemia — a condition where the blood's ability to carry oxygen is reduced. This is more likely with excessive use or in individuals with G6PD deficiency. Seek emergency medical attention if you or someone else develops bluish-grey skin, shortness of breath, or unusual fatigue after use.
How Should You Store Ultra Chloraseptic Throat Spray?
Correct storage helps maintain the product's effectiveness and safety. If you're looking for other health products that require careful storage, our Vitamins and Supplements collection also includes guidance on storage conditions.
- Store below 25°C in a cool, dry place.
- Keep away from direct sunlight and heat sources.
- Do not freeze.
- Keep the cap on when not in use.
- Keep out of the reach and sight of children.
- Do not use after the expiry date printed on the bottle.
- Do not dispose of medicines via wastewater or household waste — return unused medicines to your pharmacist for safe disposal.
References
- https://www.nhs.uk/conditions/sore-throat/
- https://www.nhs.uk/conditions/sore-throat/treatment/
- https://www.nhs.uk/medicines/benzocaine/
- https://www.nhs.uk/conditions/sore-throat/causes/
- https://www.medicines.org.uk/emc/product/1051/smpc
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 Menthol 15ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £6.29. Ordering online means you can get it delivered to your door without needing to visit a shop. It's also available in some supermarkets and high street pharmacies across the UK.
How does chloraseptic throat spray work in the body?
The active ingredient benzocaine 0.71% w/v works by temporarily blocking sodium channels in the nerve endings of the throat's mucosal lining. This prevents pain signals from being transmitted to the brain, producing a numbing effect within seconds of application. The menthol in the formula adds a cooling sensation that many people find additionally soothing.
How do I use Ultra Chloraseptic Throat Spray step by step?
Remove the cap, open your mouth wide, and direct the nozzle towards the back of your throat. Press the pump firmly to release 3 sprays onto the affected area, then replace the cap. You can repeat this every 2 hours as needed, but do not exceed 8 doses (24 sprays) in any 24-hour period.
How quickly does Ultra Chloraseptic Throat Spray start working?
Benzocaine begins to numb the throat within seconds of application because it acts directly on the mucosal surface rather than needing to be absorbed systemically. The numbing effect typically lasts around 15 to 20 minutes per application. This makes it particularly useful before eating, drinking, or speaking when throat pain is at its worst.
Can children use Ultra Chloraseptic Throat Spray?
This spray is not recommended for children under 6 years of age. Children aged 6 and over may use it under adult supervision, following the same dosage of 3 sprays every 2 hours. If your child is under 6 or you are unsure, speak to your pharmacist or GP before use — our Baby and Toddler collection may have more age-appropriate options.
What is the correct dose of Ultra Chloraseptic Throat Spray for adults?
Adults should use 3 sprays directed to the back of the throat, repeated every 2 hours as needed. The maximum dose is 8 applications (24 sprays) in any 24-hour period. Do not exceed this limit, and do not use for more than 3 consecutive days without seeking pharmacist or GP advice.
What are the side effects of Ultra Chloraseptic Throat Spray?
Most people tolerate this spray well, but possible side effects include temporary numbness or tingling in the mouth, altered taste, and mild stinging on application. Less commonly, localised irritation or hypersensitivity reactions such as rash or swelling may occur — stop use immediately if this happens and seek medical advice. In very rare cases, excessive use of benzocaine has been linked to methaemoglobinaemia; seek emergency help if you notice bluish skin or breathing difficulties.
Is Ultra Chloraseptic Throat Spray safe to use during pregnancy?
There is limited data on the use of benzocaine sprays during pregnancy, so you should speak to your GP or midwife before using this product if you are pregnant or trying to conceive. The same caution applies if you are breastfeeding. Your healthcare provider can advise on the safest options for managing sore throat pain during pregnancy.
How long can you use chloraseptic throat spray for?
This spray is intended for short-term use only and should not be used for more than 3 consecutive days without consulting a pharmacist or GP. A sore throat that persists beyond this time, or is accompanied by high fever, difficulty swallowing, or a rash, may indicate a bacterial infection or another condition that needs medical assessment. Prolonged self-treatment without professional advice is not recommended.
What happens if I accidentally swallow Ultra Chloraseptic Throat Spray?
Swallowing a small amount during normal use is unlikely to cause harm, as the concentration of benzocaine is low. However, if a large amount is swallowed — particularly by a child — contact NHS 111 or your nearest A&E immediately. Keep the product packaging with you so medical staff can identify the ingredients quickly.
Can I use Ultra Chloraseptic Throat Spray with other medicines?
No clinically significant interactions are known at the standard OTC dose of benzocaine 0.71% w/v. However, if you are taking medicines associated with methaemoglobinaemia — such as certain antimalarials, nitrates, or dapsone — speak to your pharmacist before use. Always mention all medicines you are taking, including those bought without a prescription, when seeking advice.
What are the alternatives to chloraseptic throat spray?
Alternatives include antiseptic throat lozenges (such as those containing amylmetacresol), chlorhexidine-based gargles, or systemic analgesics like paracetamol and ibuprofen for broader pain relief. You can browse a range of related remedies in our Ear, Nose & Throat collection. The best option depends on your symptoms, age, and any other medicines you are taking.
Who should not use Ultra Chloraseptic Throat Spray?
You should not use this spray if you are allergic to benzocaine or other ester-type local anaesthetics, or if you have G6PD deficiency. It is also not suitable for children under 6 years of age. If you have a severe sore throat with high fever, difficulty breathing, or a rash, seek medical attention rather than self-treating with this product.
Does Ultra Chloraseptic Throat Spray treat the infection causing my sore throat?
No — this spray is a symptomatic treatment only. Benzocaine numbs the pain but does not have antibacterial or antiviral properties, so it does not treat the underlying infection. Most sore throats are caused by viruses and resolve on their own, but if you suspect a bacterial infection such as strep throat, you should see your GP for assessment and possible antibiotic treatment.
What are the latest findings on benzocaine throat sprays for sore throat relief?
Benzocaine has been used as a topical local anaesthetic for decades and remains a well-recognised option for short-term oropharyngeal pain relief. Current NHS guidance supports the use of local anaesthetic sprays and lozenges as part of self-care for sore throat symptoms. No major new safety concerns have emerged for standard OTC use at the concentrations found in products like Ultra Chloraseptic, though the rare risk of methaemoglobinaemia with excessive use continues to be noted in product labelling.
Description
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 pain at the back of your throat is hard to ignore. Chloraseptic throat spray is a fast-acting, over-the-counter option designed to numb that discomfort quickly, without the need for tablets or lozenges. Ultra Chloraseptic Anaesthetic Throat Spray Menthol 15ml contains benzocaine 0.71% w/v — a well-established local anaesthetic — and delivers targeted relief directly where it hurts. You can find it and other throat and respiratory remedies in our Ear, Nose & Throat collection.
Sore throats are one of the most common reasons people visit a pharmacist in the UK. The NHS notes that most sore throats are caused by viral infections and resolve on their own within a week, but that doesn't make the pain any easier to manage in the meantime. That's where a targeted anaesthetic spray can genuinely help — offering relief in seconds rather than waiting for a systemic painkiller to kick in.
How Does Ultra Chloraseptic Throat Spray Work?
The active ingredient, benzocaine, is a local anaesthetic that works by temporarily blocking sodium channels in the nerve endings of the throat's mucosal lining. When those channels are blocked, pain signals can't travel to the brain — so you feel relief almost immediately after spraying.
- Benzocaine is absorbed into the superficial tissues of the throat lining on contact.
- It inhibits nerve conduction locally, reducing the sensation of pain without affecting surrounding areas.
- The menthol flavour adds a cooling sensation that many people find soothing alongside the anaesthetic effect.
- Relief typically begins within seconds and can last around 15 to 20 minutes per application.
It's 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 strep throat, you may need antibiotics prescribed by a GP.
Who Is Ultra Chloraseptic Throat Spray Suitable For?
This spray is suitable for most adults and children aged 6 and over who are experiencing a sore throat. It's particularly useful when you need fast, localised relief — for example, before eating, speaking, or swallowing medication. If you're also managing cold and flu symptoms alongside a sore throat, you might want to explore our Cold and Flu collection for complementary remedies.
- Adults and teenagers with a painful sore throat.
- Children aged 6 and over (under adult supervision).
- People who struggle to swallow tablets or lozenges.
- Those who want rapid, targeted relief without systemic medication.
How Does Ultra Chloraseptic Compare to Other Sore Throat Remedies?
| Feature | Ultra Chloraseptic Throat Spray | Throat Lozenges (e.g. Strepsils) |
|---|---|---|
| Speed of action | Seconds (direct mucosal contact) | Several minutes (dissolves slowly) |
| Active ingredient | Benzocaine 0.71% w/v | Amylmetacresol / 2,4-dichlorobenzyl alcohol |
| Suitable for children | Ages 6 and over | Varies by product (typically 6+) |
| Mechanism | Local anaesthetic (numbing) | Antiseptic (antimicrobial) |
How Should You Store Ultra Chloraseptic Throat Spray?
Store your chloraseptic throat spray below 25°C, away from direct sunlight and heat sources. Keep the cap on when not in use to prevent contamination of the nozzle. Always keep medicines out of the reach and sight of children — this is especially important with a spray that has a pleasant menthol flavour.
Check the expiry date printed on the bottle before use. Do not use the product after the stated date. If you're unsure whether the product is still suitable, speak to your pharmacist before using it.
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 Menthol 15ml specifications
| Treatment category | Sore throat / Oropharyngeal pain relief |
| Mechanism of action | Local anaesthetic — benzocaine blocks sodium channels in nerve endings |
| Effective for | Sore throat pain relief |
| Suitable for | Adults and children aged 6 and over |
| Active ingredient | Benzocaine 0.71% w/v |
| Pack size | 15ml |
| UK classification | General Sale Medicine (GSL) |
| Drug class | Local anaesthetic |
| Preparation | Oropharyngeal spray solution |
| Route of administration | Oropharyngeal (spray into mouth/throat) |
Specifications of Ultra Chloraseptic Anaesthetic Throat Spray Menthol 15ml
What Is Ultra Chloraseptic Throat Spray and What Is It Used For?
Ultra Chloraseptic Anaesthetic Throat Spray Menthol 15ml is an over-the-counter medicine used to relieve the pain associated with sore throats. It contains benzocaine 0.71% w/v, a local anaesthetic that temporarily numbs the throat lining to reduce discomfort. The menthol flavour provides an additional cooling sensation. This product is classified as a General Sale Medicine (GSL) in the UK, meaning it can be purchased without a prescription. It is intended for short-term symptomatic relief only and does not treat the underlying cause of a sore throat.
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 may not be appropriate for you.
Do not use this spray if you:
- Are allergic to benzocaine, any other local anaesthetic of the ester type, or any other ingredient in the product.
- Are under 6 years of age.
- Have a known hypersensitivity to para-aminobenzoic acid (PABA) derivatives.
- Have a rare inherited condition called glucose-6-phosphate dehydrogenase (G6PD) deficiency, as benzocaine may cause methaemoglobinaemia.
Speak to your pharmacist or GP before use if you:
- Are pregnant or breastfeeding.
- Have a severe or persistent sore throat lasting more than 3 days.
- Have a sore throat accompanied by high fever, headache, nausea, or rash — these may indicate a more serious condition requiring medical assessment.
- Are taking any other medicines, including those bought without a prescription.
Known drug interactions:
- No clinically significant interactions are known at standard OTC doses of benzocaine 0.71% w/v.
- If you are taking medicines that can cause methaemoglobinaemia (such as certain antimalarials or nitrates), seek pharmacist advice before use.
How Should You Use Ultra Chloraseptic Throat Spray?
Always use this product exactly as directed on the label or as advised by your pharmacist. Do not exceed the recommended dose. If you are also managing pain elsewhere in the body, our Pain Relief collection includes a range of complementary options.
- Remove the cap from the spray nozzle.
- Open your mouth wide and direct the nozzle towards the back of your throat.
- Press the pump firmly to release 3 sprays directly onto the affected area.
- Do not swallow immediately — allow the spray to coat the throat lining briefly.
- Replace the cap after use.
- Repeat every 2 hours if needed, up to a maximum of 8 doses (24 sprays) in any 24-hour period.
| Age Group | Dose | Frequency | Maximum in 24 hours |
|---|---|---|---|
| Adults and children aged 12+ | 3 sprays | Every 2 hours | 8 doses (24 sprays) |
| Children aged 6–11 | 3 sprays | Every 2 hours | 8 doses (under adult supervision) |
| Children under 6 | Not recommended | ||
What Are the Possible Side Effects of Ultra Chloraseptic Throat Spray?
Like all medicines, this product can cause side effects, although not everyone experiences them. Most side effects are mild and localised.
Common side effects:
- Temporary numbness or tingling in the mouth or lips.
- Altered or reduced taste sensation immediately after use.
- Mild burning or stinging sensation on application.
Less common side effects:
- Localised irritation or redness of the throat or mouth lining.
- Nausea if large amounts are accidentally swallowed.
- Hypersensitivity reactions including rash, itching, or swelling — stop use immediately and seek medical advice if these occur.
In very rare cases, benzocaine has been associated with methaemoglobinaemia — a condition where the blood's ability to carry oxygen is reduced. This is more likely with excessive use or in individuals with G6PD deficiency. Seek emergency medical attention if you or someone else develops bluish-grey skin, shortness of breath, or unusual fatigue after use.
How Should You Store Ultra Chloraseptic Throat Spray?
Correct storage helps maintain the product's effectiveness and safety. If you're looking for other health products that require careful storage, our Vitamins and Supplements collection also includes guidance on storage conditions.
- Store below 25°C in a cool, dry place.
- Keep away from direct sunlight and heat sources.
- Do not freeze.
- Keep the cap on when not in use.
- Keep out of the reach and sight of children.
- Do not use after the expiry date printed on the bottle.
- Do not dispose of medicines via wastewater or household waste — return unused medicines to your pharmacist for safe disposal.
References
- https://www.nhs.uk/conditions/sore-throat/
- https://www.nhs.uk/conditions/sore-throat/treatment/
- https://www.nhs.uk/medicines/benzocaine/
- https://www.nhs.uk/conditions/sore-throat/causes/
- https://www.medicines.org.uk/emc/product/1051/smpc
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 Menthol 15ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £6.29. Ordering online means you can get it delivered to your door without needing to visit a shop. It's also available in some supermarkets and high street pharmacies across the UK.
How does chloraseptic throat spray work in the body?
The active ingredient benzocaine 0.71% w/v works by temporarily blocking sodium channels in the nerve endings of the throat's mucosal lining. This prevents pain signals from being transmitted to the brain, producing a numbing effect within seconds of application. The menthol in the formula adds a cooling sensation that many people find additionally soothing.
How do I use Ultra Chloraseptic Throat Spray step by step?
Remove the cap, open your mouth wide, and direct the nozzle towards the back of your throat. Press the pump firmly to release 3 sprays onto the affected area, then replace the cap. You can repeat this every 2 hours as needed, but do not exceed 8 doses (24 sprays) in any 24-hour period.
How quickly does Ultra Chloraseptic Throat Spray start working?
Benzocaine begins to numb the throat within seconds of application because it acts directly on the mucosal surface rather than needing to be absorbed systemically. The numbing effect typically lasts around 15 to 20 minutes per application. This makes it particularly useful before eating, drinking, or speaking when throat pain is at its worst.
Can children use Ultra Chloraseptic Throat Spray?
This spray is not recommended for children under 6 years of age. Children aged 6 and over may use it under adult supervision, following the same dosage of 3 sprays every 2 hours. If your child is under 6 or you are unsure, speak to your pharmacist or GP before use — our Baby and Toddler collection may have more age-appropriate options.
What is the correct dose of Ultra Chloraseptic Throat Spray for adults?
Adults should use 3 sprays directed to the back of the throat, repeated every 2 hours as needed. The maximum dose is 8 applications (24 sprays) in any 24-hour period. Do not exceed this limit, and do not use for more than 3 consecutive days without seeking pharmacist or GP advice.
What are the side effects of Ultra Chloraseptic Throat Spray?
Most people tolerate this spray well, but possible side effects include temporary numbness or tingling in the mouth, altered taste, and mild stinging on application. Less commonly, localised irritation or hypersensitivity reactions such as rash or swelling may occur — stop use immediately if this happens and seek medical advice. In very rare cases, excessive use of benzocaine has been linked to methaemoglobinaemia; seek emergency help if you notice bluish skin or breathing difficulties.
Is Ultra Chloraseptic Throat Spray safe to use during pregnancy?
There is limited data on the use of benzocaine sprays during pregnancy, so you should speak to your GP or midwife before using this product if you are pregnant or trying to conceive. The same caution applies if you are breastfeeding. Your healthcare provider can advise on the safest options for managing sore throat pain during pregnancy.
How long can you use chloraseptic throat spray for?
This spray is intended for short-term use only and should not be used for more than 3 consecutive days without consulting a pharmacist or GP. A sore throat that persists beyond this time, or is accompanied by high fever, difficulty swallowing, or a rash, may indicate a bacterial infection or another condition that needs medical assessment. Prolonged self-treatment without professional advice is not recommended.
What happens if I accidentally swallow Ultra Chloraseptic Throat Spray?
Swallowing a small amount during normal use is unlikely to cause harm, as the concentration of benzocaine is low. However, if a large amount is swallowed — particularly by a child — contact NHS 111 or your nearest A&E immediately. Keep the product packaging with you so medical staff can identify the ingredients quickly.
Can I use Ultra Chloraseptic Throat Spray with other medicines?
No clinically significant interactions are known at the standard OTC dose of benzocaine 0.71% w/v. However, if you are taking medicines associated with methaemoglobinaemia — such as certain antimalarials, nitrates, or dapsone — speak to your pharmacist before use. Always mention all medicines you are taking, including those bought without a prescription, when seeking advice.
What are the alternatives to chloraseptic throat spray?
Alternatives include antiseptic throat lozenges (such as those containing amylmetacresol), chlorhexidine-based gargles, or systemic analgesics like paracetamol and ibuprofen for broader pain relief. You can browse a range of related remedies in our Ear, Nose & Throat collection. The best option depends on your symptoms, age, and any other medicines you are taking.
Who should not use Ultra Chloraseptic Throat Spray?
You should not use this spray if you are allergic to benzocaine or other ester-type local anaesthetics, or if you have G6PD deficiency. It is also not suitable for children under 6 years of age. If you have a severe sore throat with high fever, difficulty breathing, or a rash, seek medical attention rather than self-treating with this product.
Does Ultra Chloraseptic Throat Spray treat the infection causing my sore throat?
No — this spray is a symptomatic treatment only. Benzocaine numbs the pain but does not have antibacterial or antiviral properties, so it does not treat the underlying infection. Most sore throats are caused by viruses and resolve on their own, but if you suspect a bacterial infection such as strep throat, you should see your GP for assessment and possible antibiotic treatment.
What are the latest findings on benzocaine throat sprays for sore throat relief?
Benzocaine has been used as a topical local anaesthetic for decades and remains a well-recognised option for short-term oropharyngeal pain relief. Current NHS guidance supports the use of local anaesthetic sprays and lozenges as part of self-care for sore throat symptoms. No major new safety concerns have emerged for standard OTC use at the concentrations found in products like Ultra Chloraseptic, though the rare risk of methaemoglobinaemia with excessive use continues to be noted in product labelling.











