Health Centres - Canesten AF powder
How does it work?
Canesten AF powder contains the active ingredient clotrimazole, which is an antifungal medicine used to treat infections with fungi and yeasts.
Clotrimazole kills fungi and yeasts by interfering with their cell membranes. It works by stopping the fungi from producing a substance called ergosterol, which is an essential component of fungal cell membranes. The disruption in production of ergosterol causes holes to appear in the fungal cell membrane.
The cell membranes of fungi are vital for their survival. They keep unwanted substances from entering the cells and stop the contents of the cells from leaking out. As clotrimazole causes holes to appear in the cell membranes, essential constituents of the fungal cells can leak out. This kills the fungi and treats the infection.
Canesten AF powder is licensed to treat the fungal skin infections athlete's foot (tinea pedis) and jock itch (tinea cruris).
The powder should be used in conjunction with Canesten AF cream or Canesten AF spray. It should be sprinkled onto the affected area(s) of skin two to three times daily after using the cream or spray. The powder can also be dusted into clothes or shoes in contact with the affected area.
The powder can also be used to help prevent the infection returning, as fungal infections often thrive in warm, sweaty environments.
What is it used for?
In conjunction with Canesten AF cream or Canesten AF spray to treat and prevent the following:
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Athlete's foot (tinea pedis)
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Fungal infection of the groin, ie jock itch.
Warning!
- Consult your doctor or pharmacist before using this medicine if you are unsure of the cause of your infection, or you have not had it before.
- The powder should not be used on its own to treat an infection. It should be used in conjunction with Canesten AF cream or Canesten AF spray to clear an infection up. However, it can be used on its own to prevent an infection coming back, in particular athlete's foot.
- Canesten AF powder is for external use on the skin only. You should not use it to treat fungal infections affecting the nails or scalp. Ask your doctor or pharmacist for advice on treating infections in these areas.
- If your symptoms have not improved after seven days of treatment you should seek medical advice from your doctor or pharmacist.
Not to be used in
- Known sensitivity or allergy to any ingredient.
This medicine should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.
Pregnancy and Breastfeeding
Certain medicines should not be used during pregnancy or breastfeeding.

