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Bonjela Complete Plus Mouth Ulcer Care - 10ml

Bonjela Complete Plus Mouth Ulcer Care - 10ml

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  • ✔️ Relieves mouth ulcer pain and discomfort on contact
  • ✔️ Dual-action formula targets pain and bacterial infection
  • ✔️ Suitable for ulcers caused by braces, dentures, or trauma
  • ✔️ Compact 10ml tube for convenient, on-the-go use
  • ✔️ Trusted UK pharmacy brand for fast oral ulcer relief

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What Is Bonjela Mouth Ulcer Gel and How Does It Help?

 

Mouth ulcers are small, painful sores that develop on the inside of the cheeks, lips, or tongue. They're surprisingly common — the NHS estimates that around one in five people gets them on a recurring basis. If you've ever tried to eat, drink, or even speak with one, you'll know just how disruptive they can be. Bonjela mouth ulcer gel in its Complete Plus formulation is a trusted over-the-counter option designed to relieve that pain and help the healing process along. You can find it alongside other oral health treatments at Cured Pharmacy for just £6.49.

Bonjela Complete Plus comes in a 10ml tube and contains two active ingredients: choline salicylate 8.7% w/w and cetalkonium chloride 0.01% w/w. Together, these work to ease discomfort and reduce the risk of secondary infection at the ulcer site. It's a well-established product with a long track record in UK pharmacies.

 

How Does Bonjela Complete Plus Work on Mouth Ulcers?

 

The gel works through a dual-action approach. Choline salicylate is a salicylate analgesic — closely related to aspirin — that reduces inflammation and numbs the painful area on contact. Cetalkonium chloride is a quaternary ammonium antiseptic that targets bacteria at the ulcer surface, helping to keep the wound clean and reducing the chance of infection slowing recovery.

  • Choline salicylate reduces localised inflammation and provides topical pain relief
  • Cetalkonium chloride acts as an antiseptic to protect the ulcer from bacterial contamination
  • The gel formulation adheres to the oral mucosa, allowing the active ingredients to remain in contact with the affected tissue
  • Relief typically begins within a few minutes of application

 

Who Should Use Bonjela Complete Plus?

 

This product is intended for adults and young people aged 16 and over. It's particularly suited to those who experience recurrent aphthous ulcers (the most common type of mouth ulcer), as well as ulcers caused by minor trauma — such as biting the inside of your cheek or irritation from dental work. If you're looking for broader pain relief options alongside your oral care, Cured Pharmacy stocks a wide range.

  • Adults and young people aged 16 years and over
  • Those with recurrent or single aphthous mouth ulcers
  • People with ulcers caused by minor dental trauma or irritation
  • Individuals seeking an antiseptic and analgesic combination in one product

 

How Does Bonjela Complete Plus Compare to Standard Bonjela?

 

Feature Bonjela Complete Plus Bonjela Original Gel
Active ingredients Choline salicylate 8.7% + Cetalkonium chloride 0.01% Choline salicylate 8.7% + Cetalkonium chloride 0.01%
Age suitability 16 years and over 16 years and over (adult formula)
Antiseptic action Yes Yes
Pack size 10ml 15ml or 8.5ml

 

Is Bonjela Complete Plus Suitable for Long-Term Use and How Should It Be Stored?

 

Bonjela Complete Plus is intended for short-term use only. If your mouth ulcer has not improved after 7 days of treatment, or if ulcers are unusually large, spreading, or accompanied by fever, you should seek advice from your GP or dentist. Persistent ulcers can occasionally indicate an underlying condition that needs investigation. You'll also find relevant products in our dental products collection if you need additional support for your oral health.

Store the tube below 25°C and keep it out of reach of children. Do not refrigerate. Once opened, use within the period indicated on the packaging. As with all medicines, check the expiry date before use.

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.

Bonjela Complete Plus Mouth Ulcer Care 10ml specifications
Treatment category Mouth ulcer treatment / Oral analgesic and antiseptic
Mechanism of action Topical salicylate analgesic + quaternary ammonium antiseptic
Effective for Pain and discomfort from mouth ulcers
Suitable for Adults and young people aged 16 years and over
Active ingredients Choline salicylate 8.7% w/w; Cetalkonium chloride 0.01% w/w
Pack size 10ml
UK classification General Sale List (GSL)
Drug class Salicylate analgesic / Antiseptic
Preparation Oral gel
Route of administration Topical (oral mucosa)

Specifications of Bonjela Complete Plus Mouth Ulcer Care 10ml

 

What Is Bonjela Complete Plus and What Is It Used For?

 

Bonjela Complete Plus Mouth Ulcer Care is an oral gel used to relieve the pain, soreness, and discomfort associated with mouth ulcers. It is also used for minor sore areas in the mouth caused by dentures, orthodontic braces, or accidental biting of the cheek. The gel contains two active ingredients — choline salicylate, which provides analgesic and anti-inflammatory relief, and cetalkonium chloride, which acts as an antiseptic to help keep the ulcer site clean. It is available over the counter without a prescription and is suitable for adults and young people aged 16 and over.

 

What Do You Need to Know Before Using Bonjela Complete Plus?

 

Before using this product, read the following carefully. There are certain situations where Bonjela Complete Plus should not be used or should only be used with caution.

Do not use Bonjela Complete Plus if you:

  • Are under 16 years of age — due to the risk of Reye's syndrome associated with salicylates in children and teenagers
  • Are allergic to aspirin, other salicylates, or any other ingredient in the gel
  • Have a known hypersensitivity to cetalkonium chloride or related compounds
  • Are pregnant or breastfeeding without first speaking to your GP or pharmacist

Use with caution if you:

  • Are taking anticoagulant medicines such as warfarin — choline salicylate may enhance anticoagulant effects
  • Have a history of peptic ulcers or gastrointestinal sensitivity to salicylates
  • Are taking any other medicines that interact with salicylates

Known drug interactions:

  • Anticoagulants (e.g. warfarin, heparin) — potential for enhanced anticoagulant effect
  • Methotrexate — salicylates may increase plasma levels
  • Other NSAIDs or salicylate-containing products — avoid concurrent use

 

How Should You Use Bonjela Complete Plus?

 

Always use Bonjela Complete Plus exactly as directed on the label or as advised by your pharmacist. Do not apply more than the recommended amount.

  1. Wash your hands thoroughly before applying the gel
  2. Squeeze a small pea-sized amount of gel onto a clean fingertip or cotton bud
  3. Gently massage the gel directly onto the affected area of the mouth
  4. Avoid eating or drinking for at least 30 minutes after application to allow the gel to work
  5. Repeat as needed, but do not apply more than every 3 hours
  6. Do not exceed 6 applications in any 24-hour period
Indication Age Group Dose Frequency
Mouth ulcer pain relief Adults and young people 16+ Small pea-sized amount Every 3 hours; max 6 times in 24 hours
Denture or brace irritation Adults 16+ Small pea-sized amount Every 3 hours as needed

 

What Are the Possible Side Effects of Bonjela Complete Plus?

 

Like all medicines, Bonjela Complete Plus can cause side effects, although not everyone experiences them. Most side effects are mild and localised to the area of application. If you experience a serious reaction, stop using the product immediately and seek medical advice. You may also find it helpful to browse our first aid collection for supportive care products.

Common side effects:

  • Mild burning or stinging sensation at the application site
  • Temporary local irritation of the oral mucosa

Less common side effects:

  • Hypersensitivity or allergic reactions (rash, swelling, difficulty breathing — seek urgent medical attention)
  • Prolonged irritation or worsening of the ulcer site
  • Taste disturbance

 

How Should You Store Bonjela Complete Plus?

 

Correct storage helps maintain the product's effectiveness and safety throughout its shelf life.

  • Store below 25°C in a cool, dry place
  • Do not refrigerate or freeze
  • Keep the tube tightly closed when not in use
  • Keep out of the sight and reach of children
  • Do not use after the expiry date printed on the tube and carton
  • Do not dispose of medicines via wastewater or household waste — return unused product to your pharmacist

If you're managing multiple oral health concerns, our ear, nose and throat collection includes a range of products to support your overall wellbeing.

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 Bonjela Complete Plus online in the UK?

You can buy Bonjela Complete Plus Mouth Ulcer Care 10ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £6.49. It's available without a prescription and dispatched quickly to your door. Browse our full oral health collection for related products.

How does Bonjela Complete Plus work on mouth ulcers?

Bonjela Complete Plus contains choline salicylate, a salicylate analgesic that reduces inflammation and numbs the painful area on contact. It also contains cetalkonium chloride, an antiseptic that helps protect the ulcer from bacterial infection. Together, these two ingredients provide both pain relief and a cleaner healing environment.

How do I apply Bonjela Complete Plus step by step?

Wash your hands first, then squeeze a small pea-sized amount of gel onto a clean fingertip or cotton bud. Gently massage it directly onto the ulcer or sore area. Try to avoid eating or drinking for at least 30 minutes afterwards so the gel has time to work properly.

How often can I use Bonjela Complete Plus in a day?

You can apply Bonjela Complete Plus up to every 3 hours when needed, but you should not exceed 6 applications within any 24-hour period. If your symptoms are not improving after 7 days, speak to your pharmacist or GP. Always follow the directions on the packaging.

Is Bonjela Complete Plus safe for children under 16?

No — Bonjela Complete Plus is not suitable for children under 16 years of age. This is because it contains choline salicylate, a salicylate compound that carries a risk of Reye's syndrome in children and teenagers. A separate Bonjela formulation designed for younger children is available; speak to your pharmacist for guidance.

Can I use Bonjela Complete Plus if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, you should speak to your GP or pharmacist before using Bonjela Complete Plus. Salicylate-containing products are generally used with caution during pregnancy, particularly in the third trimester. Your healthcare professional can advise on the safest option for you.

What are the side effects of Bonjela Complete Plus?

Side effects are uncommon but can include a mild burning or stinging sensation at the application site and temporary local irritation. Rarely, hypersensitivity reactions such as rash or swelling may occur — if this happens, stop using the product and seek medical advice promptly. Most people tolerate the gel well when used as directed.

Can I use Bonjela Complete Plus if I take warfarin?

You should use Bonjela Complete Plus with caution if you are taking anticoagulant medicines such as warfarin, as choline salicylate may enhance their effect. Always speak to your pharmacist or GP before using this product alongside anticoagulants. They can advise whether it is safe for you to use and whether any monitoring is needed.

How long does it take for Bonjela Complete Plus to start working?

Most people notice some relief from pain and discomfort within a few minutes of applying the gel. The antiseptic action works over time to help keep the ulcer site clean. Most mouth ulcers heal naturally within 1 to 2 weeks, even without treatment.

How long can I keep using Bonjela Complete Plus?

Bonjela Complete Plus is intended for short-term use only. If your mouth ulcer has not healed within 7 days of starting treatment, you should consult your GP or dentist. Persistent, large, or frequently recurring ulcers may need further investigation to rule out an underlying cause.

What are the alternatives to Bonjela Complete Plus for mouth ulcers?

Alternatives include corticosteroid-based treatments such as hydrocortisone oromucosal tablets, barrier-forming gels like Orabase, and antiseptic mouthwashes containing chlorhexidine. The right choice depends on the severity and frequency of your ulcers. You can explore our dental products collection for a range of options.

Can Bonjela Complete Plus be used for denture or brace irritation?

Yes — Bonjela Complete Plus can be applied to sore areas caused by ill-fitting dentures or orthodontic braces, not just mouth ulcers. Apply a small amount to the irritated area as directed. If the irritation persists, speak to your dentist about adjusting the fitting of your denture or brace.

Does Bonjela Complete Plus contain aspirin?

Bonjela Complete Plus does not contain aspirin itself, but it does contain choline salicylate, which is a salicylate compound closely related to aspirin. If you are allergic to aspirin or other salicylates, you should not use this product. Always check the ingredient list if you have known allergies.

What is the latest research on mouth ulcer treatments?

Current evidence supports topical analgesics and antiseptics — such as those found in Bonjela Complete Plus — as first-line treatments for minor aphthous ulcers. Research continues into the role of immune modulation and nutritional deficiencies (such as vitamin B12, folate, and iron) in recurrent ulcers. The NHS recommends seeing a GP if ulcers are large, persistent, or unusually frequent.

Who is eligible to buy Bonjela Complete Plus without a prescription?

Bonjela Complete Plus is a General Sale List (GSL) medicine, meaning any adult aged 16 or over can purchase it without a prescription. It is not suitable for those under 16, or for people with known allergies to salicylates or any other ingredient. If you are unsure whether it is right for you, our pharmacist team at Cured Pharmacy is happy to help.

How Should You Use Bonjela Complete Plus?

Bonjela Complete Plus is applied directly to the affected area inside the mouth. Always wash your hands before and after application, and use a clean fingertip or cotton bud to avoid introducing bacteria to the ulcer site.

What Is the Correct Dose of Bonjela Complete Plus?

Use only the amount directed below. Applying more gel than recommended will not speed up healing and may increase the risk of side effects. Do not use this product more frequently than stated.

When Is the Best Time to Use Bonjela Complete Plus?

There is no single fixed time of day for using Bonjela Complete Plus — apply it whenever pain or discomfort is most noticeable. Many people find it particularly helpful to apply the gel before meals to reduce discomfort while eating, and again before bed to allow it to work overnight without being disturbed by food or drink.

Applying the gel at least 30 minutes before eating gives it the best chance to adhere to the ulcer surface and deliver effective relief. If you wake in the night with discomfort, a single application is fine provided you have not already reached the maximum of 6 applications in that 24-hour period.

How Long Can You Use Bonjela Complete Plus For?

Bonjela Complete Plus is designed for short-term use. Most minor mouth ulcers heal on their own within 1 to 2 weeks, and the gel should only be used for as long as symptoms persist during this period.

If your ulcer has not improved after 7 days of consistent use, or if you notice the ulcer growing larger, spreading, or being accompanied by other symptoms such as fever or difficulty swallowing, stop using the product and consult your GP or dentist. Recurring or persistent ulcers may require further investigation.

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 Bonjela Complete Plus?

Bonjela Complete Plus is generally well tolerated when used as directed. The most frequently reported side effects are localised to the area of application and tend to be mild and short-lived.

  • Mild burning or stinging sensation immediately after applying the gel
  • Temporary local irritation of the oral mucosa (the lining of the mouth)
  • Slight discomfort at the ulcer site during the first few seconds of application

These effects usually settle within a minute or two and do not typically require you to stop treatment. If the burning sensation is severe or persists, discontinue use and speak to your pharmacist.

What Are the Less Common Side Effects of Bonjela Complete Plus?

Less common side effects are rare but worth being aware of, particularly if you have a history of sensitivity to salicylates or antiseptic compounds.

  • Taste disturbance or an unusual taste in the mouth following application
  • Prolonged irritation or worsening soreness at the application site
  • Dryness or altered sensation of the oral mucosa

If any of these effects persist or worsen, stop using the gel and seek advice from your pharmacist or GP.

What Are the Serious Side Effects of Bonjela Complete Plus?

Serious side effects are uncommon but can occur, particularly in people with known allergies to salicylates or related compounds. Hypersensitivity reactions are the most significant concern.

  • Allergic reaction — symptoms may include skin rash, itching, swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing — this requires immediate emergency medical attention
  • Severe or spreading oral irritation beyond the application site

If you experience any signs of a serious allergic reaction, stop using Bonjela Complete Plus immediately and call 999 or go to your nearest A&E department.

What Should You Do If You Experience Side Effects?

For mild side effects such as brief stinging or local irritation, no specific action is usually needed — these typically resolve quickly. If side effects are persistent, worsening, or causing significant discomfort, stop using the product and consult your pharmacist or GP.

You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps the MHRA monitor the safety of medicines available in the UK.

Can Bonjela Complete Plus Interact With Other Medicines?

Yes — although Bonjela Complete Plus is applied topically, some systemic absorption of choline salicylate can occur, particularly if used frequently or over large areas. This means interactions with certain medicines are possible.

  • Anticoagulants (e.g. warfarin, heparin) — choline salicylate may enhance anticoagulant effects, increasing bleeding risk
  • Methotrexate — salicylates may increase plasma concentrations of methotrexate, raising the risk of toxicity
  • Other NSAIDs or salicylate-containing products — concurrent use should be avoided to prevent additive effects

Always tell your pharmacist about all medicines you are currently taking before starting Bonjela Complete Plus.

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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