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Otex Sodium Bicarbonate Ear Drops - 10ml Bottle with Dropper Applicator

Otex Sodium Bicarbonate Ear Drops - 10ml Bottle with Dropper Applicator

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  • ✔️ Softens and loosens earwax for natural drainage
  • ✔️ Contains 5% sodium bicarbonate, NHS-recognised cerumenolytic
  • ✔️ Precise dropper applicator for controlled, mess-free application
  • ✔️ Suitable for adults and children over one year
  • ✔️ Prepares ear canal effectively before professional irrigation

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

 

Earwax 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, leading to a blocked, muffled feeling — or even temporary hearing loss. That's where sodium bicarbonate ear drops come in. Otex Sodium Bicarbonate Ear Drops offer a simple, affordable way to soften and loosen excess earwax so it can drain away on its own or be removed more easily. At just £3.49 for a 10ml bottle with a dropper applicator, it's one of the most accessible earwax treatments available without a prescription. If you're looking for other ear, nose, and throat remedies, you can browse our full Ear Nose Throat collection at Cured Pharmacy.

The NHS estimates that earwax blockage is one of the most common ear problems seen in primary care. Symptoms can include a feeling of fullness in the ear, reduced hearing, tinnitus, or mild earache. Using ear drops regularly for a few days is often the first recommended step before considering ear irrigation or microsuction.

 

How Do Otex Sodium Bicarbonate Ear Drops Work?

 

The active ingredient is sodium bicarbonate 5% w/v — a mild alkaline compound that works by altering the pH environment inside the ear canal. This chemical action breaks down the bonds within earwax, softening its texture and making it far less sticky. Once softened, the wax is much more likely to migrate out of the ear canal naturally, or to be flushed away during ear irrigation performed by a healthcare professional.

  • Sodium bicarbonate raises the pH of the ear canal environment
  • This alkaline shift disrupts the lipid and protein structure of earwax
  • Wax becomes softer, less viscous, and easier to dislodge
  • The dropper applicator allows precise, controlled delivery of drops into the canal

 

Who Should Use Otex Sodium Bicarbonate Ear Drops?

 

These drops are suitable for adults and children over 1 year of age who are experiencing symptoms of earwax build-up. They're particularly useful if you've been told by a GP or nurse that you need to soften your earwax before an ear irrigation appointment. They're also a sensible first step if you're noticing early signs of blockage.

  • Adults with earwax build-up causing muffled hearing or discomfort
  • People preparing for ear irrigation or microsuction
  • Children over 1 year (under pharmacist or GP guidance)
  • Those who regularly use hearing aids or in-ear headphones, which can accelerate wax build-up

 

How Do Otex Sodium Bicarbonate Ear Drops Compare to Olive Oil Drops?

 

Feature Otex Sodium Bicarbonate Ear Drops Olive Oil Ear Drops
Active ingredient Sodium bicarbonate 5% w/v Olive oil
Mechanism Alkaline pH disrupts wax structure Lubricates and softens wax
Speed of action 3–5 days typical Several days to weeks
NHS recommended Yes Yes

 

Are Sodium Bicarbonate Ear Drops Safe to Store and Use Long-Term?

 

Once opened, Otex Sodium Bicarbonate Ear Drops should be used within 28 days and stored below 25°C, away from direct sunlight. Keep the bottle tightly closed when not in use and always keep it out of reach of children. These drops are not intended for long-term continuous use — if your earwax problem keeps recurring, it's worth speaking to your GP about underlying causes or preventative strategies. People who use hearing aids, for example, may benefit from regular check-ups with an audiologist. You might also find it helpful to explore our First Aid collection for other everyday health essentials.

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 care / Earwax removal
Active ingredient Sodium Bicarbonate 5% w/v
Mechanism of action Alkaline agent that softens and loosens earwax
Suitable for Adults and children over 1 year
Pack size 10ml bottle with dropper applicator
UK classification General Sale List (GSL)
Drug class Cerumenolytic (earwax softener)
Preparation Aqueous ear drops 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 is an over-the-counter cerumenolytic — a product specifically designed to soften and break down earwax. The active ingredient, sodium bicarbonate 5% w/v, is a well-established alkaline compound that the NHS recognises as an appropriate first-line treatment for earwax build-up. It is used to relieve the symptoms associated with excessive or impacted earwax, including reduced hearing, a sensation of fullness in the ear, mild earache, and tinnitus. It can also be used to prepare the ear canal before professional ear irrigation or microsuction.

 

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

 

Before using these drops, it's important to check whether they are appropriate for you. There are certain situations where you should not use ear drops without first speaking to a healthcare professional.

Do not use these drops if you:

  • Have or suspect a perforated (burst) eardrum
  • Have a current ear infection (otitis externa or otitis media)
  • Have had ear surgery in the past 12 months
  • Have grommets or other ear tubes in place
  • Are allergic to sodium bicarbonate or any other ingredient in the product

Warnings and precautions:

  • Do not use in children under 1 year without medical advice
  • If you experience pain, dizziness, or discharge from the ear, stop use immediately and consult a GP
  • Avoid getting the drops in your eyes
  • Do not use cotton buds to remove softened wax — this can push wax deeper into the canal

Drug interactions:

  • No clinically significant drug interactions are known for topical sodium bicarbonate ear drops
  • If you are using other ear drops prescribed by your GP, ask your pharmacist before combining treatments

 

How Should You Use Otex Sodium Bicarbonate Ear Drops?

 

Always follow the instructions in the patient information leaflet supplied with the product. The dropper applicator makes it straightforward to instil the correct number of drops without mess or waste.

  1. Wash your hands thoroughly before use
  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. Squeeze the dropper to instil the drops into the ear canal
  5. Remain with your head tilted for 2–3 minutes to allow the drops to penetrate
  6. Place a small piece of cotton wool loosely at the ear opening if needed
  7. Repeat in the other ear if required
  8. Replace the cap securely after use
Indication Age Group Dose Frequency
Earwax softening Adults & children over 1 year As directed on the label Twice daily for up to 3–5 days
Pre-irrigation preparation Adults As directed on the label Twice daily for 3–5 days before appointment

 

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 individuals may experience unwanted effects. If you're managing multiple health concerns alongside ear care, our Pain Relief collection may also be useful for associated discomfort.

Common side effects:

  • Mild, temporary stinging or tingling sensation in the ear canal
  • Slight feeling of warmth inside the ear
  • Temporary increase in the sensation of fullness as wax softens

Less common side effects:

  • Skin irritation around the outer ear
  • Mild itching inside the ear canal
  • Transient dizziness (stop use and seek advice if this occurs)

Stop using the drops and contact your GP or pharmacist if you experience ear pain, discharge, bleeding, or significant worsening of symptoms. These could indicate an underlying condition such as an ear infection that requires separate treatment.

 

How Should You Store Otex Sodium Bicarbonate Ear Drops?

 

Correct storage helps maintain the effectiveness of the drops throughout the treatment course. If you're also managing other health products at home, it's good practice to keep all medicines stored safely and separately. You can find a range of everyday health essentials in our Ear Nose Throat collection.

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Do not store in the bathroom or near a sink where humidity is high
  • Keep the bottle tightly closed when not in use
  • Discard the bottle 28 days after first opening
  • Keep out of the sight and reach of children
  • Do not use after the expiry date printed on the label

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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 sodium bicarbonate ear drops online in the UK?

You can buy Otex Sodium Bicarbonate Ear Drops online from Cured Pharmacy for just £3.49 — no prescription needed. They are dispatched quickly and available as a General Sale List medicine. Browse our full Ear Nose Throat collection for related products.

How do sodium bicarbonate ear drops work in the ear?

Sodium bicarbonate is an alkaline compound that raises the pH inside the ear canal when applied as drops. This alkaline environment breaks down the lipid and protein bonds within earwax, softening its texture so it can drain naturally or be removed more easily. It does not dissolve wax entirely — it simply makes it far less sticky and compacted.

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

Tilt your head to one side so the affected ear faces upward, then gently pull the outer ear upward and backward to open the canal. Squeeze the dropper to instil the drops, then stay in that position for 2–3 minutes before sitting upright. Repeat twice daily for up to 3–5 days, or as directed by your pharmacist.

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

Most people notice an improvement in symptoms within 3 to 5 days of twice-daily use. In some cases, particularly with harder or more impacted wax, it may take slightly longer or require follow-up ear irrigation by a healthcare professional. If there is no improvement after 5 days, speak to your pharmacist or GP.

Can children use Otex Sodium Bicarbonate Ear Drops?

These drops are generally considered suitable for children over 1 year of age, but you should always consult a pharmacist or GP before using any ear drops in young children. Never attempt to use ear drops in a child who is distressed, uncooperative, or showing signs of ear infection. Parental supervision is essential throughout use.

What are the side effects of sodium bicarbonate ear drops?

Side effects are uncommon but can include a mild stinging or tingling sensation, a temporary feeling of warmth in the ear, or slight itching. These effects are usually brief and resolve on their own. Stop use and seek medical advice if you experience pain, dizziness, discharge, or any worsening of symptoms.

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

No — you must not use sodium bicarbonate ear drops, or any ear drops, if you have a perforated (burst) eardrum or suspect you might have one. Introducing liquid into the middle ear through a perforation can cause serious complications including infection. Always seek a GP assessment first if you are unsure about the integrity of your eardrum.

What is the best time of day to use ear drops for earwax?

There is no single "best" time, but many people find it easiest to use ear drops in the morning and again in the evening — for example, after waking and before bed. Using them at consistent times each day helps ensure you complete the full course. Lying still for a few minutes after instilling the drops improves contact time with the wax.

How long can I use sodium bicarbonate ear drops for?

These drops are intended for short-term use only — typically 3 to 5 days. They are not designed for ongoing daily use as a preventative measure. If your earwax keeps building up repeatedly, speak to your GP about whether there is an underlying cause, such as a narrow ear canal or hearing aid use, that needs addressing.

What happens if I accidentally use too many drops?

Using slightly more drops than recommended on a single occasion is unlikely to cause serious harm, but it may increase the chance of temporary irritation or discomfort. Do not deliberately exceed the recommended dose. If you are concerned after accidental overuse, contact your pharmacist or NHS 111 for guidance.

What are the alternatives to sodium bicarbonate ear drops for earwax?

The NHS recommends several options for earwax softening, including olive oil drops, almond oil, and hydrogen peroxide-based preparations such as Otex Express. Each works slightly differently — olive oil lubricates and softens gradually, while hydrogen peroxide produces a mild effervescent action. Your pharmacist can help you choose the most appropriate option based on your symptoms and medical history.

Can I use sodium bicarbonate ear drops before ear irrigation?

Yes — in fact, this is one of the most common reasons these drops are recommended. Using ear drops for 3 to 5 days before an ear irrigation appointment helps soften the wax, making the procedure more comfortable and more likely to be successful. Your GP surgery or audiology clinic may specifically advise you to do this before attending.

Are sodium bicarbonate ear drops safe to use with hearing aids?

You should remove your hearing aid before instilling ear drops and wait until the ear canal is dry before reinserting it. Hearing aid users are actually more prone to earwax build-up because the device can impede the natural migration of wax out of the canal. Regular use of softening drops, as advised by an audiologist, can help manage this. You may also find useful products in our First Aid collection.

What does the latest research say about sodium bicarbonate ear drops?

Clinical evidence supports the use of cerumenolytic agents, including sodium bicarbonate, as a first-line approach to earwax management. A Cochrane review found that ear drops of various types are effective at softening wax prior to irrigation, though no single agent has been shown to be definitively superior to others. The NHS continues to recommend ear drops as the initial treatment for earwax build-up before considering more invasive procedures.

Who is not eligible to use Otex Sodium Bicarbonate Ear Drops?

You should not use these drops if you have a perforated eardrum, an active ear infection, grommets or ear tubes in place, or if you have had ear surgery within the past 12 months. Children under 1 year should not use them without medical supervision. If you are unsure whether these drops are right for you, speak to your pharmacist before purchasing.

How Should You Use Otex Sodium Bicarbonate Ear Drops?

Using these drops correctly makes a real difference to how well they work. The dropper applicator is designed to give you precise control, so take a moment to get comfortable before you start. Always wash your hands before and after use, and make sure the bottle cap is replaced securely after each application.

Follow these steps each time you use the drops:

Never insert the dropper tip directly into the ear canal. Do not use cotton buds to remove softened wax — this risks pushing wax deeper and causing further blockage.

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 summarises the standard dosing guidance for this product. Do not exceed the recommended dose without seeking professional advice first.

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

There is no strict clinical requirement for a specific time of day, but consistency matters. Most people find it easiest to use the drops in the morning after waking and again in the evening before bed — this naturally spaces the two daily doses approximately 12 hours apart. Using the drops at the same times each day helps you build a routine and reduces the chance of missing a dose.

Lying still for a few minutes after instilling the drops improves contact time between the sodium bicarbonate solution and the earwax, which may help the drops work more effectively. Avoid vigorous head movements immediately after use.

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

These drops are intended for short-term use only. The typical treatment course is 3 to 5 days of twice-daily application. Do not use them continuously beyond this period without speaking to a pharmacist or GP. If your symptoms have not improved after 5 days, or if they worsen at any point, seek professional advice rather than continuing to self-treat.

Once opened, the bottle should be discarded after 28 days regardless of how much product remains. Long-term or repeated use without medical review is not recommended — if earwax build-up is a recurring problem for you, your GP can investigate whether there is an underlying reason and advise on appropriate management.

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 alkaline nature of the solution can occasionally cause a brief sensation in the ear canal, particularly on first use.

  • Mild stinging or tingling sensation in the ear canal immediately after instilling the drops
  • Temporary feeling of warmth inside the ear
  • A brief increase in the sensation of fullness as the wax begins to soften and shift

These effects typically resolve within a few minutes and are not a reason to stop treatment unless they are severe or persistent.

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

Less commonly, some individuals may notice localised reactions around or inside the ear. These are still generally mild but worth being aware of before you start treatment.

  • Itching inside the ear canal
  • Skin irritation or redness around the outer ear opening
  • Transient dizziness or a brief sensation of imbalance after instilling the drops
  • Temporary muffling of hearing as softened wax shifts position within the canal

If dizziness occurs, sit or lie down until it passes and avoid driving or operating machinery until you feel completely steady. If dizziness is prolonged or severe, stop use and seek medical advice promptly.

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

Serious side effects are rare when the product is used correctly in people without contraindications. However, using ear drops in the presence of a perforated eardrum or active ear infection can lead to more significant complications, including worsening infection or damage to the middle ear structures. This is why it is essential to confirm there is no perforation before use.

Seek urgent medical attention if you experience any of the following after using these drops:

  • Sudden or worsening ear pain
  • Discharge or bleeding from the ear
  • Significant or sudden hearing loss
  • Severe or prolonged dizziness
  • Signs of allergic reaction such as swelling, rash, or difficulty breathing

What Should You Do If You Experience Side Effects?

If you notice mild side effects such as brief stinging or warmth, you can usually continue using the drops as directed — these sensations are expected and harmless. However, if any side effect is severe, persistent, or causing you concern, stop using the drops immediately and contact your pharmacist or GP for advice. You can also call NHS 111 for guidance at any time.

You should report any suspected side effects from medicines to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps improve medicine safety information for everyone.

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. Because the product is applied directly into the ear canal and is not absorbed systemically in meaningful amounts, interactions with oral or systemic medicines are not expected. That said, if you are already using other ear drops prescribed by your GP — such as antibiotic or steroid ear drops — always ask your pharmacist before combining treatments, as timing and application order may matter.

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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