Sore throat

Updated 24 August 2016

Medi-Keel can treat mouth sores too

Mouth sores can affect the inside or outside of the mouth and vary in size and appearance.


Typically, they are painful sores on the lining of the mouth which may be accompanied by swelling and redness. The pain makes eating difficult and may last until healing is well underway.

The most common causes of mouth sores are aphthous ulcers (also referred to as canker sores), viral, bacterial or fungal infections, injury, irritating chemicals or food, smoking, chemotherapy drugs or some systemic disorders. Isolated mouth sores in people with no other symptoms or risk factors for a systemic illness are usually caused by a viral infection or recurrent aphthous stomatitis or canker sores.

There are various treatments for the relief of mouth sores. Adcock Ingram makes a range of throat preparations to sooth a sore mouth and kill the bacteria causing the mouth sores. Medi-Keel A® Throat Lozenges contain benzocaine, a mild local anaesthetic which alleviates pain of the mouth or a sore throat, and cetylpyridinium chloride which has been shown to rapidly kill bacteria and fungi over a prolonged period.

The lozenges are oval shaped to fit comfortably in the palate of the mouth while they are being sucked. Medi-Keel A® Throat Spray which contains phenol which has a pain relieving action because it exerts a local anaesthetic effect. It is used for the temporary relief of minor sore throat infections.

MediKeel A® Throat Gargle contains dibucaine and benzocaine. These have a mild local anaesthetic action which alleviate the pain of mouth sores. It also contains cetylpyridinium chloride which has been shown to rapidly kill bacteria and fungi over a prolonged period.4 A mouth sore that lasts more than 10 days should be evaluated by a doctor or dentist. Symptoms outside the mouth, a rash, or both suggest a more immediate need for a diagnosis.

Read more:
Sore throat gargles and remedies that work – and some that don't
9 ways to prevent sore throats

1. Murchison DF. Mouth Sores and Inflammation. The Merck Manual Consumer Version available online at URL: Accessed 18 February 2016
2. Medi-Keel A® Throat Lozenges, Medi-Keel A® Honey and Lemon Throat Lozenges and Medi-Keel A® Blackcurrant Throat Lozenges approved package insert, July 1986.
3. Medi-Keel A® Throat Spray approved package insert, June 1988.
4. Medi-Keel A® Throat Gargle approved package insert, February 1976.

S1 Medi-Keel A® Throat Lozenges. Each lozenge contains benzocaine 12 mg; cetylpyridinium chloride 1,5 mg. Reg. No. T/16.3/223. S1 Medi-Keel A® Honey and Lemon Throat Lozenges. Each lozenge contains benzocaine 12 mg; cetylpyridinium chloride 1,5 mg. Reg. No. 33/16.3/0496. S1 Medi-Keel A® Blackcurrant Throat Lozenges. Each lozenge contains benzocaine 12 mg; cetylpyridinium chloride 1,5 mg. Reg. No. 33/16.3/0495. S1 Medi-Keel A® Throat Gargle. Each 15 ml solution contains dibucaine hydrochloride 5 mg; benzocaine 30 mg; cetylpyridinium chloride 3,713 mg; benzyl alcohol 60 mg. Reg. No. H/16.3/199. S0 Medi-Keel A® Throat Spray. Each 100 ml contains phenol 0,5 g. Reg. No. T/16.4/184. For full prescribing information refer to the package insert approved by the medicines regulatory authority. 10261437 03/2016 Adcock Ingram Limited. Reg. No. 1949/034385/06. Private Bag X69, Bryanston, 2021, South Africa. Tel. +27 11 635 0000.