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Boots Mouth Ulcer gel, Sore Mouth gel – patient leaflet, side effects, dosage

Medicine status: No longer supplied Details

Medicine strength:
6 mg/gram + 200 microgram/gram
Contains active substances:

Patient leaflet - Boots Mouth Ulcer gel, Sore Mouth gel

Sore Mouth

Cetylpyridinium Chloride, Lidocaine

J Rapidly relieves mouth ulcer pain

J Soothing antiseptic

J Adults and children

15g e

Read all of this carton for full instructions.

What this medicine is for

An antiseptic gel for the rapid relief of common mouth ulcer pain.

Before you use this medicine

X Do not use:

  • If you are allergic to any of the ingredients

You can use this medicine if you are pregnant or breastfeeding.

J

Check the tube seal is not broken before first use. If it is, do not use the gel.

Pierce tube seal with end of cap.

Adults and children: Apply a small amount of gel to the affected area with a clean finger, every 3 hours during the day, if you need to. Mouth Ulcer Gel is not suitable for teething in children.

If symptoms do not go away within 7 days talk to your doctor or dentist.

If you take use too much: Talk to a pharmacist or doctor.

Possible side effects

Most people will not have problems, but some may get some.

! If you get any of these serious side effects, stop using the gel. See a doctor at once:

  • Difficulty in breathing, swelling of the face, neck, tongue or throat (severe allergic reactions)

How to store this medicine

Do not store above 25°C.

Keep all medicines out of the sight and reach of children.

Use by the date on the end flap of the carton.

If you need more advice ask your pharmacist

Active ingredients

This oral gel contains Cetylpyridinium Chloride 0.02% w/w, Lidocaine 0.6% w/w.

Also contains: purified water, ethanol (33.9 vol %), sucrose, hypromellose, cetomacrogol 1000, star anise oil, eucalyptol, levomenthol.

PL 00014/0150 Text prepared 07/18

Manufactured for the Marketing Authorisation Holder The Boots Company PLC Nottingham NG2 3AA by BCM Ltd, Nottingham NG2 3AA.

15g e

Component code

Facts about Boots Mouth Ulcer gel, Sore Mouth gel

Active substances Cetylpyridinium, Lidocaine
Strength 6 mg/gram + 200 microgram/gram
Pharmaceutical form Oromucosal gel
How is it taken Gingival, Oromucosal
Is it available? No, all its packs are listed as discontinued (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Drug group (ATC)
  1. N Nervous system drugs
    1. N01 Anesthetics
      1. N01B Local anesthetics
        1. N01BB Amide local anesthetics
          1. N01BB52 lidocaine, combinations
Marketing authorisation PL 00014/0150
Codes BNF 12030100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.1.0 of 12 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.