Skip to content

Antifungal (azole)

Fluconazole: uses, side effects & precautions

Also known as Diflucan, fluconazole, Canesten Oral.

Ces informations sont fournies à titre indicatif uniquement et ne constituent pas un avis médical. Consultez toujours un professionnel de santé qualifié pour toute préoccupation médicale personnelle. En cas d'urgence, appelez votre numéro d'urgence local.

What it is used for

  • Vaginal thrush (vaginal yeast infection / candidiasis)
  • Some other fungal infections such as oral thrush (under medical advice)

How it works

It stops the fungus that causes thrush from growing by damaging its cell membrane, clearing the infection. For simple vaginal thrush it is often a single oral dose.

How it is taken

Taken as an oral capsule or tablet, often as a single dose for uncomplicated vaginal thrush, with some cases needing a longer course. Antifungal creams and pessaries are alternatives. Take it exactly as your doctor, pharmacist, or label directs.

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

  • Nausea
  • Stomach upset
  • Headache
  • Diarrhoea
  • Mild rash

Serious effects — get help

  • Yellowing of the skin or eyes or severe abdominal pain (liver problems)
  • Severe or blistering skin rash
  • Irregular or fast heartbeat (rare heart rhythm effect)
  • Signs of a serious allergic reaction

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

  • Some statins
  • Certain heart rhythm and blood-thinning medicines
  • Some medicines for epilepsy and mental health
  • Tell your pharmacist or clinician about all your medicines before use

Who should take care

  • Tell your clinician if you are pregnant or breastfeeding, as a cream or pessary is often preferred in pregnancy
  • Tell them about any liver disease or heart rhythm problems
  • See a clinician if symptoms keep coming back, are severe, or this is your first episode and you are unsure of the diagnosis
  • Does not treat bacterial infections

Frequently asked questions

Is one dose enough?
For simple vaginal thrush a single oral dose often works, though some cases need a longer course. Follow the advice you are given.
Can I use it in pregnancy?
A cream or pessary is usually preferred in pregnancy. Tell your clinician if you are or might be pregnant before taking the tablet.
What if my symptoms come back?
Recurrent thrush should be assessed by a clinician, as you may need a different or longer treatment and a check of the diagnosis.
Will it help any vaginal infection?
No. It only treats yeast (fungal) infections, not bacterial ones, which need different treatment.
Is Fluconazole safe to take?
For most people it is safe when taken exactly as a doctor or pharmacist advises and as printed on the label. Tell your clinician about your other medicines and health conditions, and seek urgent care for any serious reaction.

Related medicines

See a doctor online now