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Diflucan Capsule

Upon completion of a medical consultation with one of our health care professionals you can expect prices to start from £29.99
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All inclusive price starts from £29.99

The treatment is inclusive of consultation, private prescription & medicine delivery
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The Product Information was written and researched on 09/04/2021 . Find out more. See less.

What is Diflucan? 

Diflucan is an anti-fungal treatment containing the active ingredient fluconazole. This medicine can be used to treat a range of infections caused by fungi, as well as the prevention of candidal infections. The most common cause of fungal infection is a yeast called Candida, which can lead to what’s commonly known as thrush or a yeast infection.

What is the recommended dosage?

The recommended dosage for Diflucan depends on your age and what condition you need to treat. Refer to the table below for the usual doses required for adults, but always follow the specific advice given to you by your doctor or Chemist4U pharmacist. 



To treat cryptococcal meningitis

400mg on the first day, then 200mg to 400mg once daily for 6 to 8 weeks or longer if needed. Sometimes, doses are increased up to 800mg. 

To stop cryptococcal meningitis from coming back

200mg once daily until your doctor or pharmacist tells you to stop treatment.

To treat coccidioidomycosis 

200mg to 400mg once daily from 11 months for up to 24 months or longer if needed. Sometimes, doses are increased up to 800mg. 

To treat internal fungal infections caused by Candida

800mg on the first day, then 400mg once a day until your doctor or pharmacist tells you to stop treatment. 

To treat mucosal infections affecting the lining of the mouth or throat and denture sore mouth

200mg to 400mg on the first day, then 100mg to 200mg once a day until your doctor or pharmacist tells you to stop. 

To treat mucosal thrush (dose depends on where the infection is located)

50mg to 400mg once daily for 7 to 30 days until your doctor or pharmacist tells you to stop treatment. 

To stop mucosal infections affecting the lining of the mouth or throat from coming back

100mg to 200mg once daily, or 200mg three times a week, while you are at risk of getting an infection.

To treat genital thrush

150mg as a single dose.

To reduce the recurrence of vaginal thrush

150mg every third day for a total of 3 doses, then once a week for 6 months while you are at risk of getting an infection. 

To treat fungal skin and nail infections

Depending on the site of infection, 50mg once daily, 150mg once weekly or 300 to 400mg once weekly for 1-4 weeks. Athlete’s foot may need treatment lasting up to 6 weeks. 

To prevent a Candida infection if your immune system is weak 

200mg to 400mg once daily, while you are at risk of getting an infection.

How does fluconazole treat thrush?

Diflucan contains the active ingredient fluconazole, an anti-fungal medicine. Fluconazole works by blocking fungi from being able to reproduce, meaning fungal infections like thrush can be cleared up quickly. This action can also prevent fungal infections from occurring in people who are at a higher risk, or those with recurring thrush. 

What causes thrush?

Thrush is a type of common fungal infection, often generally referred to as a yeast infection. It can affect both men and women in various parts of the body, commonly the genital regions or the mouth. Thrush is not a sexually transmitted infection, it can occur for no obvious reason at all. It is more likely, however, to develop with:

  • Uncontrolled diabetes

  • HIV infection

  • Cancer

  • Dry mouth

  • Pregnancy

  • Smoking

  • Wearing dentures that don’t fit well

  • Taking certain medications, including corticosteroids, antibiotics or birth control pills. 

Sometimes, certain conditions or medications can cause thrush to keep returning. In this case, a medicine like Diflucan can help to prevent and control infections.

Is Diflucan suitable for pregnant or breastfeeding women? 

If you are pregnant, think you may be pregnant, or are planning on becoming pregnant, you should not take Diflucan unless your doctor has told you otherwise. You shouldn’t breastfeed if you’re taking a repeated dose of Diflucan, but it’s safe to continue breastfeeding if you’ve only taken a single dose of 150mg. 

Can children take Diflucan?

Children and adolescents can take Diflucan, but its uses are limited and the recommended dosage will be different depending on their age and condition. Speak to a doctor or Chemist4U pharmacist for expert advice and always follow the specific dose that has been prescribed. 

When should Diflucan not be used? 

Diflucan may not be suitable for some people with underlying health conditions or those who are taking other medicines. You must not take Diflucan if: 

  • You are allergic to fluconazole, to other medicines you have taken to treat fungal infections, or to any of the ingredients in this medicine.

  • You are taking astemizole or terfenadine (antihistamine medicines for allergies).

  • You are taking cisapride (used for stomach upsets).

  • You are taking pimozide (used to treat mental illness). 

  • You are taking quinidine (used to treat heart arrhythmia). 

  • You are taking erythromycin (an antibiotic for treating infections). 

You should talk to your doctor or Chemist4U pharmacist for expert advice before taking Diflucan if:

  • You are taking any other medicines or herbal remedies, including those obtained without a prescription. 

  • You have liver or kidney problems. 

  • You suffer from heart disease, including heart rhythm problems.

  • You have abnormal levels of potassium, calcium, or magnesium in your blood. 

  • You develop severe skin reactions (itching, reddening of the skin, or difficulty breathing). 

  • You develop signs of adrenal insufficiency (symptoms include chronic or long-lasting fatigue, muscle weakness, loss of appetite, weight loss, and abdominal pain). 

Are there any side effects?

Like all medicines, there is a possibility you may experience some unwanted side effects when taking Diflucan. These are usually mild and they won’t affect everyone. Seek medical attention immediately if you experience any signs of an allergic reaction (difficulty breathing, swelling of the face, lips, or throat, skin rash or fainting) or liver problems (tiredness, loss of appetite, vomiting, and/or jaundice - yellowing of the skin or whites of the eyes). 

Common side effects that may affect up to 1 in 10 people include: 

  • Headache

  • Diarrhoea

  • Feeling or being sick

  • Increases in blood tests of liver function

  • Rash 

Uncommon side effects that may affect up to 1 in 100 people include: 

  • Reduction in red blood cells, which can cause paleness, weakness or breathlessness 

  • Decreased appetite

  • Sleep problems

  • Drowsiness or dizziness

  • Seizure 

  • Vertigo

  • Tingling feeling or numbness

  • Changes in sense of taste 

  • Constipation, indigestion, or wind

  • Dry mouth

  • Muscle pain

  • Liver damage and yellowing of the skin and eyes (jaundice)

  • Hives, itching, or blistering

  • Increased swearing

  • Tiredness, general feeling of being unwell or fever

For more information on rare side effects, refer to the patient information leaflet. If you experience any side effects, including any not included in the patient information leaflet, you can report them using the MHRA Yellow Card Scheme

Do I need a prescription for Diflucan?

You do need a prescription for Diflucan in the UK. Our healthcare professionals can provide prescriptions if they think this treatment would be right for you and your condition. When you click the button which reads “Start Consultation” at the top of this page, you’ll see a short questionnaire set up by our healthcare team which is designed to help them understand your medical needs. Just like an in-person consultation with your GP, our doctors will assess your answers to their questions and write a prescription for the treatment they think will be best for you. You’ll then be able to pay for your medication and we’ll send it out to you quickly and in discreet packaging.

Storage information

Do not store above 30°C and keep out of sight and reach of children. Do not use Diflucan after the expiry date, referring to the last day of the month stated on the packaging. 

Important information

This product is a medicine; make sure to speak to your doctor or Chemist4U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or our pharmacist before taking this product. If you suffer from any allergies, ask your doctor or our pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.

Helpful Advice on Medication Restrictions & Addiction

For further information on our medication restrictions policy, please click here.

If you are concerned about addiction to 'over the counter' medication, we urge you to visit the below links for professional help and advice:

NHS Help & Advice on Drug Addiction

Talk To Frank - Drug Addiction Help & Support

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Shipping Costs

Free UK Delivery on all orders over £30* - Delivery within 3-5 working days

Standard UK Delivery - £2.95* - Delivery within 3-5 working days

Please Note: These prices are shown as a guide only. All delivery times are approximate but have been obtained in good faith.

*Excluding refrigerated products and treatments which are subject to different postage charges.

Discreet Delivery

All our items are sent completely discreet for your peace of mind.

This means the packaging is plain, there is no mention of what product is inside your package and there is no mention of Chemist4U either.

We respect that many of our products are of a sensitive nature - this is why we take every step to keep your purchases private.

Returns Information

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