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Fluconazole for fungal infections

Diflucan, Canesten

Fluconazole is an antifungal medicine.

It is usually taken as a single 150 mg dose for vaginal thrush. You can take it at any time of day, either before or after a meal.

Longer courses of treatment are prescribed for other types of fungal infections.

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About fluconazole

Type de médicament

An antifungal medicine

Utilisé pour

Infections fongiques

Aussi appelé

Azocan®; Diflucan®; Canesten Oral®

Disponible sous forme de

Capsules, oral liquid medicine and injection

Many types of fungi live harmlessly on our skin. However, some types of fungi can thrive and multiply on the surface of our bodies and cause infections of the skin, mouth or vagina. The most common fungi to cause skin infections are the tinea group of fungi. A common fungal infection of the mouth and vagina is called le muguet. This is caused by an overgrowth of a yeast (which is a type of fungus) called candida.

Fungal infections sometimes occur within the body also. You are more at risk of developing an internal fungal infection if your immune system does not work properly. For example, if you are having chemotherapy, or if you are taking medicines for rheumatic disease, or if you have VIH/SIDA. Internal fungal infections can be serious.

You will have been prescribed fluconazole to treat a fungal infection, or to help prevent a fungal infection from developing. It works by killing yeast and fungi.

Fluconazole is available on prescription, and it can also be bought at pharmacies, without a prescription, for the treatment of la mycose vaginale.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking fluconazole it is important that your doctor or pharmacist knows:

  • Si vous êtes enceinte ou si vous allaitez.

  • If you have a heart rhythm problem.

  • If you have problems with the way your liver works, or any problems with the way your kidneys work.

  • If you have a rare inherited blood condition called porphyria.

  • If you are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, as well as herbal and complementary medicines. This is important because fluconazole can interfere with a number of other medicines and cause problems.

  • Si vous avez déjà eu une réaction allergique à un médicament.

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  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about fluconazole and will provide you with a full list of the side-effects which you may experience from taking it.

  • There are several strengths of fluconazole capsule available - 50 mg, 150 mg, and 200 mg. Your doctor or pharmacist will tell you what dose to take and how often to take it, as this will depend upon the nature of your infection/condition. The dose will be printed on the label of the pack to remind you of what was said. Fluconazole can be taken at any time of day, and can be taken either before or after a meal. Swallow the capsule with a drink of water.

  • Infections such as vaginal thrush can be treated with a single 150 mg dose; other infections require a course of treatment possibly lasting a number of weeks.

  • If you have been prescribed a course of treatment, remember to continue taking the capsules/medicine until the course is finished. Fluconazole is usually prescribed as a once-daily dose. If you forget to take a dose, take it as soon as you remember. If you do not remember until the following day, skip the missed dose. Do not take two doses together to make up for a forgotten dose.

  • Remember to keep any regular appointments with your doctor. This is so your doctor can check on your progress. If you are taking a course of fluconazole, you may need to have a blood test to check that it is not affecting your liver if you are taking it for more than one month.

  • If your symptoms do not improve despite taking fluconazole, speak again with your pharmacist or doctor so that your infection can be investigated further.

  • If you buy any medicines, always check with a pharmacist that they are safe to take with fluconazole.

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Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with fluconazole. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Common fluconazole side-effects (these affect fewer than 1 in 10 people)


Que puis-je faire si je ressens cela ?

Feeling sick (nausea) or being sick (vomiting), stomach ache, diarrhoea

Optez pour des aliments simples et buvez beaucoup d'eau

Maux de tête

Buvez beaucoup d'eau et demandez à votre pharmacien de vous recommander un antidouleur approprié. Si les maux de tête persistent, informez votre médecin

Éruption cutanée

Let your doctor know about this

Changes to some blood test results

Your doctor will check for these if needed

If you experience any other symptoms which you think may be due to fluconazole, discuss them with your doctor or pharmacist for further advice.

  • Gardez tous les médicaments hors de la portée et de la vue des enfants.

  • Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.

Informations importantes sur tous les médicaments

Ne prenez jamais plus que la dose prescrite. Si vous soupçonnez que vous ou quelqu'un d'autre avez pris une surdose de ce médicament, rendez-vous au service des urgences de votre hôpital local. Emportez le contenant avec vous, même s'il est vide.

Si vous subissez une opération ou un traitement dentaire, informez la personne qui effectue le traitement des médicaments que vous prenez.

Ce médicament est pour vous. Ne le donnez jamais à d'autres personnes, même si leur état semble être le même que le vôtre.

Ne gardez pas de médicaments périmés ou indésirables. Apportez-les à votre pharmacie locale qui s'en débarrassera pour vous.

Si vous avez des questions concernant ce médicament, demandez à votre pharmacien.

MHRA - Signaler des réactions indésirables

Signalez les effets secondaires suspectés des médicaments, vaccins, cigarettes électroniques, incidents liés aux dispositifs médicaux, produits défectueux ou falsifiés (contrefaits) à l'Agence de Régulation des Médicaments et Produits de Santé pour garantir une utilisation sûre et efficace.

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Lectures complémentaires et références

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About the author

Author image

Michael Stewart, MRPharmS

Medicine Leaflet Review Manager – Contractor, Pharmacist

BPharm (Hons), MRPharmS

Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.

About the reviewer

Author image

Sid Dajani

Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.

  • Next review due: 26 Nov 2026
  • 27 nov. 2023 | Dernière version

    Dernière mise à jour par

    Michael Stewart, MRPharmS

    Revu par

    Sid Dajani
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