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Otex Sodium Bicarbonate Ear Drops 10ml

Otex Sodium Bicarbonate Ear Drops 10ml

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  • ✔️ Softens and loosens hardened ear wax gently
  • ✔️ Contains 5% sodium bicarbonate cerumenolytic solution
  • ✔️ Prepares ears effectively before professional irrigation
  • ✔️ Suitable for adults and children with wax build-up
  • ✔️ Gentle alkaline formula — no peroxide, no fizzing

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What Are Sodium Bicarbonate Ear Drops and How Do They Help?

 

Ear wax — or cerumen — is completely normal. Your ears produce it to protect the ear canal from dust, bacteria, and debris. But sometimes wax builds up faster than it can clear naturally, leaving you with a blocked, muffled, or uncomfortable feeling. That is where sodium bicarbonate ear drops come in. Otex Sodium Bicarbonate Ear Drops 10ml contain a 5% w/v sodium bicarbonate solution, a gentle alkaline agent that softens hardened wax so it can drain away on its own or be removed more easily by a healthcare professional. Available from our ear, nose and throat range at Cured Pharmacy, this is a straightforward, no-fuss solution for a very common problem.

Ear wax blockage is one of the most frequently reported ear complaints in the UK. The NHS estimates that around 2.3 million people in England seek treatment for ear wax problems each year. Symptoms can include reduced hearing, a feeling of fullness, tinnitus, earache, and even dizziness. Using ear drops regularly is often the first step recommended before any professional ear irrigation or microsuction procedure.

 

How Do Otex Sodium Bicarbonate Ear Drops Work?

 

The mechanism is straightforward. Sodium bicarbonate is an alkaline compound. When introduced into the ear canal, it raises the local pH, which disrupts the lipid and protein structure of hardened cerumen. In plain terms, it breaks the wax down from the inside, making it softer and more fluid so it can migrate out of the ear canal naturally.

  • The alkaline solution penetrates the outer layers of compacted wax
  • It disrupts the waxy matrix, reducing its viscosity
  • Softened wax is more likely to migrate naturally towards the outer ear
  • If wax does not clear on its own, it becomes far easier to remove via irrigation or microsuction

This is why GPs and practice nurses often ask patients to use ear drops for several days before attending for ear syringing — it makes the whole process quicker and more comfortable.

 

Who Should Use Otex Sodium Bicarbonate Ear Drops?

 

These drops are suitable for adults and children who are experiencing symptoms of ear wax build-up. They are particularly useful if you have been told by a healthcare professional that your ears need softening before irrigation, or if you regularly experience wax accumulation due to narrow ear canals, hearing aid use, or frequent use of in-ear headphones.

  • Adults with symptoms of ear wax blockage (muffled hearing, fullness, mild earache)
  • People preparing for ear irrigation or microsuction
  • Hearing aid users prone to wax build-up
  • Those who prefer a gentle, non-peroxide-based ear wax softener

 

How Do Otex Sodium Bicarbonate Ear Drops Compare to Other Ear Wax Drops?

 

Feature Otex Sodium Bicarbonate Ear Drops Otex Express (Carbamide Peroxide)
Active ingredient Sodium bicarbonate 5% w/v Carbamide peroxide 5% w/v
Mechanism Alkaline softening of wax Oxygen-release to break up wax
Suitable for sensitive ears Yes — gentle formulation May cause more fizzing sensation
NHS recommended Yes Yes

 

Is This Product Suitable for Long-Term Use and How Should It Be Stored?

 

These drops are intended for short-term use — typically up to two weeks at a time. If your symptoms do not improve after two weeks of regular use, you should speak to your GP or pharmacist rather than continuing indefinitely. It is also worth noting that if you experience pain, discharge, sudden hearing loss, or dizziness, you should stop using the drops immediately and seek medical advice. These could be signs of an ear infection or a perforated eardrum, both of which are contraindications to using any ear drops.

Store Otex Sodium Bicarbonate Ear Drops below 25°C, away from direct sunlight and out of reach of children. Do not use the drops after the expiry date printed on the bottle. Once opened, check the product packaging for any in-use expiry guidance. If you are managing other health conditions alongside ear care, you might also find our first aid range useful for everyday health needs.

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.

Otex Sodium Bicarbonate Ear Drops 10ml specifications
Treatment category Ear wax removal / Ear care
Active ingredient Sodium Bicarbonate 5% w/v
Mechanism of action Alkaline softening and breakdown of cerumen
Suitable for Adults and children (consult pharmacist for young children)
Pack size 10ml
UK classification General Sale Medicine (GSL)
Drug class Cerumenolytic agent
Preparation Aqueous ear drop solution
Route of administration Otic (into the ear canal)

Specifications of Otex Sodium Bicarbonate Ear Drops 10ml

 

What Is Otex Sodium Bicarbonate Ear Drops and What Is It Used For?

 

Otex Sodium Bicarbonate Ear Drops 10ml is an over-the-counter ear care product used to soften and loosen ear wax (cerumen) that has become hardened or impacted in the ear canal. The active ingredient, sodium bicarbonate 5% w/v, is an alkaline compound that gently breaks down the structure of ear wax, helping it to drain naturally or making it easier to remove during professional ear irrigation. The NHS recommends ear drops — including sodium bicarbonate solution — as a first-line approach to managing ear wax build-up before considering more invasive procedures.

 

What Do You Need to Know Before Using Otex Sodium Bicarbonate Ear Drops?

 

Before using these drops, it is important to check that they are appropriate for you. There are certain situations where ear drops should not be used, and ignoring these warnings could cause harm.

Do not use these drops if you:

  • Have or suspect you have a perforated (burst) eardrum
  • Have an active ear infection (otitis externa or otitis media)
  • Have had ear surgery in the past 12 months
  • Have grommets (tympanostomy tubes) in place
  • Are allergic to any of the ingredients in the formulation
  • Have pain, discharge, or bleeding from the ear — seek medical advice first

Drug interactions:

  • No significant drug interactions are known for topical sodium bicarbonate ear drops used as directed
  • If you are using other ear drops prescribed by your doctor, speak to your pharmacist before combining treatments

If you are unsure whether this product is right for you, speak to a pharmacist before purchasing. You can also browse our wider ear, nose and throat collection for related products.

 

How Should You Use Otex Sodium Bicarbonate Ear Drops?

 

Using ear drops correctly makes a real difference to how well they work. Follow these steps carefully each time you use the drops.

  1. Warm the bottle slightly by holding it in your hand for a minute or two — cold drops can cause dizziness
  2. Tilt your head to one side so the affected ear faces upward
  3. Gently pull the outer ear upward and backward to straighten the ear canal
  4. Instil the recommended number of drops into the ear canal
  5. Stay in the tilted position for 5–10 minutes to allow the drops to penetrate the wax
  6. Place a small piece of cotton wool loosely at the ear opening to absorb any excess
  7. Repeat in the other ear if required
Indication Age Group Dose Frequency
Ear wax softening Adults and children As directed on packaging (typically a few drops per ear) Once or twice daily for up to 2 weeks

Always follow the instructions on the product label or as directed by your pharmacist. Do not exceed the recommended dose.

 

What Are the Possible Side Effects of Otex Sodium Bicarbonate Ear Drops?

 

Side effects with sodium bicarbonate ear drops are uncommon when used as directed. Most people tolerate them well. However, as with any medicine, some people may experience unwanted effects.

Common side effects:

  • Mild, temporary irritation inside the ear canal
  • A sensation of fullness or pressure in the ear
  • Slight warmth or tingling after instillation

Less common side effects:

  • Skin irritation around the outer ear
  • Temporary worsening of muffled hearing as wax softens and shifts
  • Dizziness if drops are instilled when too cold

Stop using the drops and seek medical advice if you experience pain, discharge, sudden hearing loss, or any sign of an allergic reaction such as swelling or rash. If you are managing other health concerns alongside ear care, our pain relief range may help with associated discomfort while you await professional assessment.

 

How Should You Store Otex Sodium Bicarbonate Ear Drops?

 

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Keep out of the reach and sight of children
  • Do not use after the expiry date printed on the bottle or carton
  • Do not freeze
  • Check the packaging for any in-use expiry period after opening

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 Otex Sodium Bicarbonate Ear Drops online in the UK?

You can buy Otex Sodium Bicarbonate Ear Drops 10ml directly from Cured Pharmacy for just £4.49, with fast dispatch from our GPhC-registered UK pharmacy. No prescription is needed as this is a General Sale Medicine. Simply add to your basket and check out — it is that straightforward.

How do sodium bicarbonate ear drops work to remove ear wax?

Sodium bicarbonate is an alkaline compound that, when placed in the ear canal, raises the local pH and disrupts the lipid and protein bonds holding hardened cerumen together. This softens the wax so it can migrate naturally towards the outer ear or be removed more easily during professional irrigation. It is one of the methods recommended by the NHS for managing ear wax build-up at home.

How do I use Otex Sodium Bicarbonate Ear Drops step by step?

Warm the bottle in your hand, tilt your head so the affected ear faces upward, gently pull the outer ear back and up to straighten the canal, then instil the drops and remain still for 5–10 minutes. You can place a small piece of cotton wool loosely at the ear opening afterwards to absorb any excess solution. Repeat daily as directed on the packaging, typically for up to two weeks.

How long does it take for sodium bicarbonate ear drops to work?

Most people notice an improvement in symptoms — such as reduced muffling or a feeling of the ear clearing — within 3 to 7 days of consistent use. Heavily impacted wax may take the full two-week course before it clears or before you attend for professional ear irrigation. If there is no improvement after two weeks, speak to your GP.

Can I use these ear drops if I have a perforated eardrum?

No — you must not use Otex Sodium Bicarbonate Ear Drops, or any ear drops, if you have a perforated (burst) eardrum. Introducing liquid into the middle ear through a perforation can cause a serious infection. If you are unsure whether your eardrum is intact, see your GP before using any ear drops.

Are sodium bicarbonate ear drops safe for children?

These drops can be used in children, but you should always consult a pharmacist or GP before using ear drops in young children, particularly those under two years of age. Never use ear drops in a child who has grommets, a suspected perforated eardrum, or an active ear infection. Our baby and toddler range includes other age-appropriate health products if needed.

What are the side effects of Otex Sodium Bicarbonate Ear Drops?

Side effects are uncommon but can include mild irritation, a temporary sensation of fullness or pressure, and slight tingling after instillation. If you experience pain, discharge, sudden hearing loss, or any allergic reaction such as swelling or rash, stop using the drops immediately and contact your pharmacist or GP. Using cold drops can also cause brief dizziness, so always warm the bottle first.

Who is eligible to use Otex Sodium Bicarbonate Ear Drops?

These drops are suitable for adults and children experiencing symptoms of ear wax build-up, such as muffled hearing, a blocked feeling, or mild earache. They are particularly useful for people preparing for ear irrigation or microsuction, and for hearing aid users who are prone to wax accumulation. They are not suitable for anyone with a perforated eardrum, active ear infection, or recent ear surgery.

What happens if I miss a dose of Otex Sodium Bicarbonate Ear Drops?

If you forget to use your drops on a particular day, simply continue with your normal schedule the following day — do not double up to compensate for a missed application. Consistency matters more than perfection, so try to use the drops at the same time each day. Missing the occasional dose is unlikely to significantly affect the outcome.

What are the alternatives to sodium bicarbonate ear drops for ear wax removal?

The NHS recommends olive oil, almond oil, or sodium bicarbonate drops as first-line options for softening ear wax at home. Carbamide peroxide-based drops (such as standard Otex ear drops) are another alternative that works by releasing oxygen to break up wax. If drops do not resolve the problem, a GP can refer you for professional ear irrigation or microsuction.

How long can you use Otex Sodium Bicarbonate Ear Drops for?

These drops are intended for short-term use, typically up to two weeks at a time. Using them for longer than recommended without medical advice is not advisable. If your symptoms persist beyond two weeks, or if they worsen at any point, consult your GP or pharmacist for further assessment.

Can I use Otex Sodium Bicarbonate Ear Drops before ear syringing?

Yes — in fact, this is one of the most common reasons people use ear wax softening drops. The NHS and most GP practices recommend using ear drops for at least 3 to 5 days (sometimes up to two weeks) before ear irrigation, as softened wax is much easier and more comfortable to remove. Your practice nurse or GP may specifically advise you to use sodium bicarbonate drops beforehand.

Do Otex Sodium Bicarbonate Ear Drops interact with other medicines?

No significant drug interactions are known for topically applied sodium bicarbonate ear drops when used as directed. However, if you are already using other ear drops prescribed by your doctor, check with your pharmacist before combining treatments to avoid any potential issues. Always mention all medicines you are taking when speaking to a healthcare professional.

What is the latest research on sodium bicarbonate ear drops for ear wax?

Clinical evidence supports the use of cerumenolytic agents — including sodium bicarbonate solution — as an effective first step in managing ear wax impaction. A Cochrane review found that ear drops of various types are more effective than no treatment for softening ear wax, though no single agent has been shown to be definitively superior to others. The NHS continues to recommend ear drops as the first-line approach before professional removal.

Can I use Otex Sodium Bicarbonate Ear Drops if I wear hearing aids?

Yes — hearing aid users are actually among those most likely to benefit from regular use of ear wax softening drops, as the device can push wax deeper into the canal over time. Using drops periodically can help prevent build-up and keep your hearing aid functioning properly. Always remove your hearing aid before instilling the drops and allow the ear to dry before reinserting it. You can also explore our ear, nose and throat range for complementary ear care products.

How Should You Use Otex Sodium Bicarbonate Ear Drops?

Using these drops correctly is key to getting the best results. Always read the label before use, and if you have any doubts about whether this product is right for you, speak to your pharmacist first.

Follow these steps each time you apply the drops:

What Is the Correct Dose of Otex Sodium Bicarbonate Ear Drops?

Always follow the dosage instructions on the product label or as directed by your pharmacist. The table below provides a general guide based on the intended use of this product.

Do not use more drops than recommended, and do not use the drops more frequently than advised.

When Is the Best Time to Use Otex Sodium Bicarbonate Ear Drops?

There is no single "correct" time of day to use these drops, but many people find it easiest to apply them at bedtime. Lying still after instillation allows the solution to remain in contact with the wax for longer, which may improve effectiveness. If you are using the drops twice daily, morning and evening work well as a routine.

Try to use the drops at the same time each day to build a consistent habit, particularly if you are preparing for a professional ear irrigation appointment.

How Long Can You Use Otex Sodium Bicarbonate Ear Drops For?

These drops are designed for short-term use only — typically up to two weeks at a time. For most people, symptoms of ear wax blockage will improve within this period. If you are using the drops to prepare for ear syringing, your GP or practice nurse will advise you on how many days to use them beforehand, usually between 3 and 14 days.

If your symptoms have not improved after two weeks of regular use, do not continue without seeking advice. Persistent symptoms could indicate a different underlying cause that requires professional 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 Otex Sodium Bicarbonate Ear Drops?

Most people use sodium bicarbonate ear drops without experiencing any unwanted effects. When side effects do occur, they are usually mild and short-lived. The most commonly reported effects relate to the local sensation in the ear canal immediately after instillation.

  • Mild irritation or itching inside the ear canal
  • A temporary sensation of fullness or pressure in the ear
  • Slight warmth or tingling after the drops are applied
  • Temporary worsening of muffled hearing as softened wax shifts position

What Are the Less Common Side Effects of Otex Sodium Bicarbonate Ear Drops?

Less commonly, some people may notice effects around the outer ear or experience brief dizziness. These are generally avoidable with correct technique — particularly by warming the bottle before use.

  • Dizziness or a spinning sensation if cold drops are instilled (warm the bottle first)
  • Skin irritation or redness around the outer ear opening
  • A feeling of liquid moving in the ear canal as wax softens

What Are the Serious Side Effects of Otex Sodium Bicarbonate Ear Drops?

Serious side effects are rare when the drops are used correctly and in appropriate patients. However, certain symptoms should prompt you to stop using the drops immediately and seek medical advice. Pain, discharge, or bleeding from the ear are not expected effects of these drops and may indicate an underlying problem such as an ear infection or a perforated eardrum. Sudden or significant hearing loss is also a red flag that warrants urgent assessment by a healthcare professional.

What Should You Do If You Experience Side Effects?

If you notice mild irritation or a temporary sensation of fullness, this is usually nothing to worry about and will settle on its own. However, if you experience pain, discharge, sudden hearing loss, or any sign of an allergic reaction — such as swelling, rash, or difficulty breathing — stop using the drops immediately. Contact your pharmacist or GP for guidance. In the case of a severe allergic reaction, call 999 or go to your nearest A&E department.

Can Otex Sodium Bicarbonate Ear Drops Interact With Other Medicines?

No clinically significant drug interactions have been identified for topically applied sodium bicarbonate ear drops when used as directed. The solution acts locally within the ear canal and is not absorbed systemically in meaningful amounts. That said, if you are already using other ear drops — particularly those prescribed by your doctor — speak to your pharmacist before combining treatments to ensure there is no risk of interference or irritation.

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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