Topical antiseptic

Aminacrine (أميناكرين)

Aminacrine is a mild antiseptic found in mouth gels with the local anaesthetic lidocaine, to ease the pain of mouth ulcers, sore gums, denture irritation and teething, and to help keep the sore area clean.

What it is used for

  • Pain from mouth ulcers
  • Sore gums and denture irritation
  • Teething pain in children, if the leaflet allows it for the child's age and after asking your pharmacist

How it is used

  • Dry the area and apply a small amount with a clean fingertip or cotton bud to the sore spot; follow the leaflet and ask your pharmacist
  • Avoid eating or hot drinks until the numbness wears off
  • Do not use more than the leaflet says, especially in children

Possible side effects

  • Temporary numbness or stinging where applied
  • An allergic reaction such as swelling or a rash
  • A temporary change in taste

Who should not use it

  • Allergy to aminacrine, lidocaine or other local anaesthetics

Before and while using it

  • Swallowing too much lidocaine can harm babies and young children, causing fits or heart problems; use the smallest amount possible
  • Non-medicine measures for teething, such as cooled teething rings, are advised first
  • Numbness can lead to biting the tongue or swallowing difficulty in children when eating
  • See a dentist or doctor if a mouth ulcer has not healed after a few weeks or keeps coming back

Medicine interactions

  • No important interactions are known; avoid using other numbing mouth products at the same time

Pregnancy and breastfeeding

  • Small amounts are not expected to cause harm, but ask your pharmacist before using it in pregnancy or breastfeeding

How to store it

  • Keep the tube closed at room temperature out of the reach of children

Get medical help straight away if

  • Your face, lips or tongue swell, or you find it hard to breathe.
  • You get a severe rash, blistering or peeling skin.
  • A side effect worries you or doesn’t go away: contact your doctor or pharmacist.

Questions about this medicine?

Talk to a doctor by video, or send your question by text.

Source: Standard international medicine references

This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.