AAA sore throat spray (Benzocaine)

How does it work?

AAA sore throat spray contains the active ingredient benzocaine, which belongs to a group of medicines known as local anaesthetics. It works by temporarily blocking the pathway of pain signals along nerves.

Pain is caused by the stimulation of pain receptors at the ends of nerves. The stimulation causes sodium to enter the nerve ending, which causes an electrical signal to build up in the nerve. When this electrical signal is big enough, it passes along the nerve to the brain, where the signal is interpreted as pain.

Benzocaine acts by stopping the sodium entering the nerve ending at the site of the pain. This prevents an electrical signal building up and passing along nerve fibres to the brain. In this way benzocaine relieves pain in the area it is applied to.

Benzocaine is used to relieve the pain and discomfort of sore throats. It is administered by spraying directly onto the area which requires numbing.

What is it used for?

  • Temporary relief of pain due to sore throats or minor infection in the mouth.


  • Do not exceed the recommended dose of this medicine, which will be stated in the product packaging or information leaflet supplied with the medicine. Do not continue using the spray for more than seven days.
  • Avoid contact of this medicine with the eyes.
  • If the sore throat is severe, persistent or accompanied by fever, nausea or headache, a doctor should be consulted before using this medicine.
  • If you have difficulty breathing or severe difficulty swallowing, do not use this medicine and consult a doctor.
  • Do not inhale the spray.

Not to be used in

  • Children under six years of age.
  • Inflammation of the structure at the back of the tongue (epiglottis) due to bacterial infection, which can obstruct breathing (epiglottitis).

This medicine should not be used if you are allergic to any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.

If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.

Pregnancy and breastfeeding

Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.

  • The safety of this medicine during pregnancy and breastfeeding has not been established. Seek medical advice from your doctor.

Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

  • Sensitisation or allergic reaction.
  • Rash or itching of the skin.
  • Numbness of the mouth.

The side effects listed above may not include all of the side effects reported by the medicine's manufacturer.

For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

It is important to tell your doctor or pharmacist what medicines you are already using, including those bought without a prescription and herbal medicines, before you start treatment with this medicine. Similarly, check with your doctor or pharmacist before using any new medicines while using this one, to make sure that the combination is safe.

This medicine may reduce the effect of sulphonamide-type antibiotics, such as sulfamethoxazole and sulfadiazine. If you are taking this type of antibiotic check with your doctor or pharmacist before using this medicine.

Other medicines containing the same active ingredient

Ultra chloraseptic anaesthetic throat spray