1. How long does it take for the capsule to work?
Many people notice an improvement in symptoms within 24 to 48 hours, although it may take several days for symptoms to completely clear.
What is the Canesten Oral Thrush Capsule?
Canesten Thrush Oral Capsule is a treatment used to treat vaginal thrush (candidiasis). It contains fluconazole 150 mg, an antifungal medicine that works by stopping the growth of the yeast that causes the infection.
The capsule works throughout the body to treat the infection and relieve the uncomfortable symptoms of thrush.
It can help relieve symptoms such as:
- Vaginal itching and irritation
- Soreness around the vagina
- Thick white discharge associated with thrush
- Burning sensation during urination
- General discomfort in the vaginal area
Active ingredient: Fluconazole 150 mg
Who is Canesten Thrush Oral Capsule suitable for?
This medicine is available without a prescription.
Canesten Oral Thrush Capsule can be taken by:
- Women aged 16 to 60 years who have previously been diagnosed with vaginal thrush
- Adults experiencing the typical symptoms of thrush
This product is not suitable for:
- Women under 16 or over 60 without medical advice
- Anyone allergic to fluconazole or other antifungal medicines
- People taking certain medicines that may interact with fluconazole
Speak to a doctor or pharmacist before using this medicine if:
- You are pregnant, trying to become pregnant, or breastfeeding
- You have liver or kidney problems
- You have heart rhythm problems
- Your symptoms are different from your usual thrush symptoms
How to take the Canesten Thrush Oral Capsule
Always read the patient information leaflet before taking the medicine.
Typical use:
- Take one capsule as a single dose
- Swallow the capsule whole with water
- The capsule can be taken with or without food
Symptoms usually begin to improve within a few days.
If symptoms do not improve within 7 days, speak to a doctor or pharmacist.
How to store Canesten Thrush Oral Capsule
- Store below 25°C
- Keep the capsule in its original packaging
- Keep out of the sight and reach of children
- Do not use after the expiry date printed on the packaging
Like all medicines, this product can cause side effects, although not everyone gets them.
Common side effects may include:
- Headache
- Stomach discomfort
- Nausea
- Diarrhoea
Stop taking the capsule and seek medical advice immediately if you experience:
- Severe skin rash
- Swelling of the face, lips, tongue, or throat
- Difficulty breathing or signs of an allergic reaction
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Frequently Asked Questions
2. Can I drink alcohol after taking the capsule?
Moderate alcohol consumption is not known to interact with fluconazole, but avoiding alcohol may help if you are feeling unwell.
3. Can I take another capsule if symptoms do not go away?
Do not take another capsule without speaking to a doctor or pharmacist first.
4. Can men use fluconazole for thrush symptoms?
Yes, fluconazole may sometimes be used for male thrush, but it is best to speak to a pharmacist or doctor for advice.
5. What should I do if I accidentally take more than one capsule?
Seek medical advice as soon as possible if you take more than the recommended dose.
Our Clinical Authors
This page has been written by a registered UK pharmacist and reviewed by our clinical team to ensure it is accurate, clear and reflects current clinical guidance.
Last medically reviewed: 07 July 2026
Last updated: 07 July 2026