What it is used for
- Painful mouth and throat conditions
- Sore throat
- Mouth ulcers and mouth soreness
- Mouth pain after dental procedures or from radiotherapy (under supervision)
How it works
Benzydamine reduces inflammation and numbs the surface of the mouth and throat where it is applied, easing pain and soreness. It works locally on the lining of the mouth and throat rather than being absorbed for a whole-body effect.
How it is taken
Comes as a mouthwash/gargle and a throat spray. The mouthwash is swished or gargled and then spat out, and the spray is aimed at the sore area. Some people dilute the mouthwash if it stings, as directed. Use it exactly as your doctor, pharmacist or the label directs. It is for use in the mouth and throat only, not for swallowing in large amounts.
No doses here on purpose. The right strength and schedule depend on you — only a doctor or pharmacist should set them. Always follow your prescription and the label.
Common side effects
- Numbness or tingling in the mouth
- Stinging on application (can be eased by diluting the mouthwash if directed)
- Dry mouth
- An unusual taste
Serious effects — get help
- Signs of an allergic reaction such as facial or throat swelling, severe rash or difficulty breathing
- Worsening sore throat with high fever, or difficulty swallowing or breathing (which need urgent assessment)
If a reaction is severe — for example trouble breathing, swelling of the face or throat, or collapse — go to the nearest emergency room now or call your local emergency number. Do not wait for an online consultation.
Interactions to watch
- Generally few, as little is absorbed
- Other mouth/throat products (ask a pharmacist about combining)
Who should take care
- Spit out the mouthwash rather than swallowing it
- See a clinician if a sore throat is severe, persists, or comes with high fever or difficulty swallowing
- Tell a pharmacist if you are pregnant or breastfeeding
- Not usually recommended for young children unless advised