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Thrush Treatment with Applicator Clotrimazole 500mg Pessary

Thrush Treatment with Applicator Clotrimazole 500mg Pessary

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  • ✔️ Single-dose pessary clears vaginal thrush fast
  • ✔️ Applicator included for easy, hygienic insertion
  • ✔️ Targets Candida fungi directly at the infection site
  • ✔️ Relieves itching, soreness, and discharge effectively
  • ✔️ Suitable for women aged 16 and over with confirmed thrush

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Is Clotrimazole 500mg Pessary the Right Thrush Treatment for You?

 

Vaginal thrush is incredibly common — most women will experience it at least once in their lifetime. It is caused by an overgrowth of a yeast called Candida albicans, which naturally lives in the vagina in small amounts. When the balance is disrupted, it can multiply and cause the familiar symptoms: itching, soreness, a thick white discharge, and sometimes a burning sensation when you pass urine. The good news is that it is very treatable. The clotrimazole 500mg pessary is a single-dose, over-the-counter antifungal treatment that works directly at the source of the infection, making it one of the most convenient options available. You can browse our full range of thrush treatments to find the right option for your needs.

This product comes with a pre-loaded applicator, so insertion is straightforward — even if you have never used a pessary before. It is suitable for women aged 16 and over who have previously been diagnosed with vaginal thrush by a doctor and recognise the same symptoms returning.

 

How Does the Clotrimazole 500mg Pessary Work?

 

Clotrimazole belongs to a group of medicines called azole antifungals. Once inserted into the vagina, the pessary dissolves and releases the active ingredient directly at the site of infection. Here is how it works step by step:

  • Clotrimazole targets the fungal cell membrane by inhibiting an enzyme called lanosterol 14α-demethylase.
  • This disrupts the production of ergosterol, a key component that keeps the fungal cell membrane intact.
  • Without ergosterol, the cell membrane becomes leaky and unstable, causing the Candida cells to die.
  • Because the medicine is delivered locally, it acts quickly and with minimal systemic absorption.

Most women notice an improvement in symptoms within 24 to 48 hours of using the pessary, though it may take a few days for all symptoms to fully resolve.

 

Who Should Use the Clotrimazole 500mg Pessary?

 

This treatment is designed for women who are experiencing a confirmed episode of vaginal thrush. It is not suitable for everyone, so it is worth checking the criteria before purchasing.

This product is suitable for you if:

  • You are aged 16 or over.
  • You have previously been diagnosed with vaginal thrush by a doctor and recognise the same symptoms.
  • You are not pregnant (or have spoken to your doctor first if you are).
  • You have not had more than two episodes of thrush in the past six months.

If you are unsure whether your symptoms are caused by thrush, or if this is your first episode, please speak to your GP or pharmacist before using this product. Other conditions — such as bacterial vaginosis or sexually transmitted infections — can cause similar symptoms and require different treatments. You may also find it helpful to explore our women's health range for related products and support.

 

How Does the Clotrimazole 500mg Pessary Compare to Other Thrush Treatments?

 

Feature Clotrimazole 500mg Pessary Oral Fluconazole 150mg Capsule
Route of administration Vaginal (local) Oral (systemic)
Number of doses Single dose Single dose
Suitable in pregnancy Only with medical advice Not recommended
Effect on latex contraceptives Yes — may damage latex No effect

 

How Should You Store the Clotrimazole 500mg Pessary?

 

Store this product below 25°C in a dry place, away from direct sunlight and out of the reach and sight of children. Do not use the pessary after the expiry date printed on the packaging. If you are also using a topical antifungal cream for external symptoms, you may find our creams and ointments collection useful for complementary options.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Thrush Treatment with Applicator Clotrimazole 500mg Pessary specifications
Treatment category Antifungal / Vaginal thrush
Active ingredient Clotrimazole 500mg
Strength 500mg
Preparation Pessary
Route of administration Vaginal
Mechanism of action Azole antifungal — inhibits ergosterol synthesis in fungal cell membranes
Suitable for Women aged 16 and over with confirmed vaginal thrush
Pack size 1 pessary with applicator
UK classification Pharmacy (P) medicine
Drug class Azole antifungal
Effective against Candida albicans (vaginal thrush)

Specifications of Thrush Treatment with Applicator Clotrimazole 500mg Pessary

 

What Is the Clotrimazole 500mg Pessary and What Is It Used For?

 

The Thrush Treatment with Applicator Clotrimazole 500mg Pessary is an antifungal medicine used to treat vaginal thrush (also known as vulvovaginal candidiasis). It contains clotrimazole, an azole antifungal agent that kills the Candida fungi responsible for the infection. This is a single-dose treatment — one pessary inserted into the vagina is all that is needed for most uncomplicated cases of thrush in women aged 16 and over.

Symptoms of vaginal thrush that this product is intended to relieve include vaginal itching, soreness, redness, and a thick, white, odourless discharge. If your symptoms are different from these, or if you are unsure of the cause, please consult your GP before using this product.

 

What Do You Need to Know Before Using the Clotrimazole 500mg Pessary?

 

Do not use this pessary if any of the following apply to you:

  • You are under 16 years of age.
  • You are pregnant, unless your doctor has advised it is safe to do so.
  • You have had more than two episodes of thrush in the last six months.
  • You or your partner have ever had a sexually transmitted infection (STI).
  • You have abnormal or irregular vaginal bleeding or a blood-stained discharge.
  • You have vulval or vaginal sores, ulcers, or blisters.
  • You are allergic to clotrimazole or any other ingredient in this product.
  • You have previously had an allergic reaction to other antifungal medicines.

Known interactions and precautions to be aware of:

  • Clotrimazole can damage latex condoms and diaphragms — use alternative contraception for at least five days after use.
  • Tacrolimus (an immunosuppressant) may interact with clotrimazole — speak to your doctor if you take this medicine.
  • Warfarin — there is a theoretical risk of increased anticoagulant effect; seek medical advice if you are on anticoagulant therapy.

 

How Should You Use the Clotrimazole 500mg Pessary?

 

Always follow the instructions in the pack carefully. The pessary is for vaginal use only — do not swallow it. Here is a step-by-step guide to using the applicator correctly:

  1. Wash your hands thoroughly before handling the pessary and applicator.
  2. Remove the pessary from its foil packaging and place it into the wider end of the applicator.
  3. Lie on your back with your knees bent and legs apart.
  4. Gently insert the applicator as far as is comfortable into the vagina.
  5. Slowly push the plunger to release the pessary inside the vagina.
  6. Withdraw the applicator carefully and dispose of it safely.
  7. Wash your hands again after use.
Indication Age Group Dose Frequency
Vaginal thrush Women aged 16 and over One 500mg pessary Single dose (one night only)
Vaginal thrush Under 16 Not recommended Seek medical advice

It is best to use the pessary at bedtime so it stays in place overnight. A panty liner may be helpful as some residue can leak out. If you are also experiencing external itching or soreness, you may wish to use a separate clotrimazole cream alongside the pessary — explore our antifungal treatments collection for more options.

 

What Are the Possible Side Effects of the Clotrimazole 500mg Pessary?

 

Like all medicines, this product can cause side effects, although not everyone will experience them. Most side effects are mild and localised to the area of application.

Common side effects (may affect up to 1 in 10 people):

  • Mild burning or stinging sensation in the vagina after insertion.
  • Temporary itching or irritation in the vaginal area.
  • Slight increase in vaginal discharge as the pessary dissolves.

Less common side effects (may affect up to 1 in 100 people):

  • Pelvic discomfort or cramping.
  • Skin rash or redness around the vaginal area.
  • Allergic reaction — symptoms may include swelling, severe itching, or difficulty breathing. Stop use immediately and seek medical help if this occurs.

If your symptoms do not improve within seven days of treatment, or if they worsen, stop using the product and speak to your GP. You should also seek advice if you experience any unusual symptoms not listed here.

 

How Should You Store the Clotrimazole 500mg Pessary?

 

  • Store below 25°C in a dry place.
  • Keep away from direct sunlight and heat sources.
  • Keep out of the reach and sight of children.
  • Do not use after the expiry date printed on the carton.
  • Do not store in the bathroom or near a sink where moisture could affect the product.
  • Do not freeze.

If you have any questions about this product or your symptoms, our pharmacists are here to help. You can also find further support through our sexual health range for related products.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy a clotrimazole 500mg pessary online in the UK?

You can purchase the Clotrimazole 500mg Pessary with applicator directly from Cured Pharmacy online without a prescription. It is available as a Pharmacy (P) medicine for women aged 16 and over who have previously been diagnosed with vaginal thrush. Simply add it to your basket and complete a short eligibility check at checkout to confirm it is suitable for you.

How does a clotrimazole 500mg pessary work in the body?

Clotrimazole works by inhibiting an enzyme called lanosterol 14α-demethylase, which is essential for producing ergosterol — a vital component of the fungal cell membrane. Without ergosterol, the Candida cell membrane breaks down and the fungal cells die. Because the pessary is inserted directly into the vagina, the medicine acts locally with very little absorption into the bloodstream.

How do I use the clotrimazole 500mg pessary with applicator step by step?

Start by washing your hands, then place the pessary into the wider end of the applicator. Lie on your back with your knees bent, gently insert the applicator into the vagina as far as is comfortable, and push the plunger to release the pessary. Withdraw the applicator, dispose of it, and wash your hands again. Use a panty liner overnight as some residue may leak out.

When is the best time to use a thrush pessary?

Bedtime is the ideal time to insert the pessary, as lying down allows the medicine to remain in place and dissolve fully overnight without leaking out. Using it at night also means you are less likely to be active, which helps the pessary stay in the correct position. Most women find this timing the most comfortable and practical.

What are the side effects of the clotrimazole 500mg pessary?

The most common side effects are mild and localised, including a temporary burning or stinging sensation, itching, or slight irritation in the vaginal area after insertion. These effects usually settle within a short time. If you experience severe swelling, a rash, or difficulty breathing, stop using the product immediately and seek urgent medical attention as this may indicate an allergic reaction.

Can I use a clotrimazole pessary during my period?

It is generally advisable to avoid using a pessary during your period, as menstrual flow can wash the medicine away before it has had time to work effectively. If your symptoms are severe and you cannot wait, speak to your pharmacist for guidance. Wherever possible, wait until your period has finished before starting treatment.

Will the clotrimazole pessary damage condoms or diaphragms?

Yes — clotrimazole can weaken latex condoms and diaphragms, reducing their effectiveness as contraception. You should avoid using latex-based contraceptives for at least five days after using the pessary. Consider using alternative contraception during this period, and speak to your pharmacist if you have any concerns about contraceptive protection.

Who is eligible to use the clotrimazole 500mg pessary?

This product is suitable for women aged 16 and over who have previously been diagnosed with vaginal thrush by a doctor and are experiencing the same recognisable symptoms again. It is not suitable for girls under 16, women who are pregnant without medical advice, or those who have had more than two episodes of thrush in the past six months. If you are unsure, speak to your pharmacist before purchasing.

What happens if my thrush symptoms do not improve after using the pessary?

If your symptoms have not improved within seven days of using the clotrimazole 500mg pessary, or if they worsen at any point, you should stop using the product and consult your GP. Your symptoms may be caused by a different condition — such as bacterial vaginosis or an STI — that requires a different treatment. Do not use a second pessary without medical advice.

What are the alternatives to a clotrimazole 500mg pessary for thrush?

Alternatives include oral fluconazole 150mg capsules, which treat thrush systemically with a single tablet taken by mouth, or lower-dose clotrimazole pessaries used over three to six nights. Clotrimazole 1% or 2% cream can also be applied externally to relieve itching and soreness around the vulva. You can explore our full thrush treatment range to compare your options.

How long does it take for the clotrimazole pessary to work?

Many women notice an improvement in symptoms such as itching and soreness within 24 to 48 hours of using the pessary. However, it may take up to seven days for all symptoms to fully resolve. If you are still experiencing significant discomfort after a week, contact your GP for further assessment.

Can I use the clotrimazole pessary if I am pregnant?

You should not use this pessary during pregnancy without first speaking to your doctor or midwife. While clotrimazole is sometimes used in pregnancy under medical supervision, the applicator should be used with caution and the pessary should only be inserted by hand during the first trimester. Always seek professional advice before using any medicine during pregnancy.

Can I use the clotrimazole pessary if I am breastfeeding?

Clotrimazole pessaries are generally considered low risk during breastfeeding because very little of the medicine is absorbed into the bloodstream. However, it is always best to speak to your pharmacist or GP before using any medicine while breastfeeding, just to be sure it is appropriate for your individual circumstances.

How long can you keep using clotrimazole pessaries if thrush keeps coming back?

If you are experiencing more than two episodes of thrush within six months, this is considered recurrent thrush and you should see your GP rather than continuing to self-treat. Recurrent thrush may require a longer course of antifungal treatment or investigation into underlying causes. You can also explore our women's health range for supportive products while awaiting a GP appointment.

What does the latest research say about clotrimazole pessaries for thrush?

Clotrimazole has been used to treat vaginal thrush for decades and remains a well-established, clinically supported treatment recommended by the NHS. Current evidence confirms that a single 500mg dose is as effective as multi-dose regimens for uncomplicated vaginal candidiasis in most women. It continues to be recommended as a first-line OTC option by UK clinical guidelines.

How Should You Use the Clotrimazole 500mg Pessary?

This pessary is for vaginal use only. Before you begin, read the full patient information leaflet included in the pack. The applicator makes insertion straightforward, but it is important to follow each step carefully to ensure the medicine is delivered correctly and works as intended.

Follow these steps for correct use:

Wearing a panty liner overnight is recommended, as some residue from the dissolving pessary may leak out. Do not use tampons, as these may absorb the medicine before it can work.

What Is the Correct Dose of the Clotrimazole 500mg Pessary?

This is a single-dose treatment. One pessary inserted on one occasion is the full course of treatment for uncomplicated vaginal thrush. Do not use more than one pessary unless directed to do so by your doctor.

When Is the Best Time to Use the Clotrimazole 500mg Pessary?

Insert the pessary at bedtime. Using it at night means you will be lying down for several hours, which allows the pessary to dissolve fully and the medicine to be absorbed into the vaginal tissue without leaking out prematurely. This timing also tends to be more comfortable and less disruptive to your daily routine.

Avoid using the pessary during your period if possible, as menstrual flow may reduce its effectiveness. If your symptoms are severe and cannot wait, speak to your pharmacist for advice.

How Long Can You Use the Clotrimazole 500mg Pessary For?

This product is a single-dose, one-off treatment. You should not need to use it again for the same episode of thrush. Most women notice symptom improvement within 24 to 48 hours, with full resolution within seven days. If symptoms persist beyond seven days, or if they return within a short period, do not self-treat again — consult your GP instead.

If you experience more than two episodes of thrush within six months, this is considered recurrent thrush and requires medical assessment rather than repeated OTC treatment.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of the Clotrimazole 500mg Pessary?

Most women tolerate this pessary well, and side effects are generally mild and short-lived. Because the medicine is applied locally inside the vagina, any reactions tend to be confined to the area of application rather than affecting the whole body.

  • Mild burning or stinging sensation in the vagina shortly after insertion.
  • Temporary itching or irritation in the vaginal area.
  • Slight increase in vaginal discharge as the pessary dissolves overnight.
  • Mild redness or warmth around the vaginal opening.

What Are the Less Common Side Effects of the Clotrimazole 500mg Pessary?

Less commonly, some women may experience more noticeable local reactions. These are still usually mild and resolve without treatment, but you should be aware of them before using the product.

  • Pelvic discomfort or a cramping sensation after insertion.
  • Skin rash or peeling around the vulval area.
  • Swelling or increased soreness that was not present before treatment.
  • Headache — though this is rare with vaginal use due to minimal systemic absorption.

What Are the Serious Side Effects of the Clotrimazole 500mg Pessary?

Serious side effects are rare but can occur. The most significant risk is an allergic reaction (hypersensitivity) to clotrimazole or another ingredient in the pessary. Signs of a serious allergic reaction include sudden swelling of the face, lips, or throat, difficulty breathing, a widespread skin rash, or feeling faint. If you experience any of these symptoms, stop using the product immediately and call 999 or go to your nearest A&E department.

You should also stop using the pessary and contact your GP if your symptoms worsen significantly after treatment, or if you develop a fever, abdominal pain, or an unusual or foul-smelling discharge — as these may indicate a different or more serious infection.

What Should You Do If You Experience Side Effects of the Clotrimazole 500mg Pessary?

For mild side effects such as temporary burning or itching, no specific action is usually needed — these should settle on their own within a few hours. Avoid using perfumed soaps, bubble baths, or douches in the vaginal area, as these can worsen irritation. If discomfort is significant, a cool compress applied externally to the vulva may help provide relief.

If side effects are persistent, severe, or concern you in any way, contact your pharmacist or GP for advice. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can the Clotrimazole 500mg Pessary Interact With Other Medicines?

Because very little clotrimazole is absorbed into the bloodstream when used as a pessary, the risk of drug interactions is low. However, there are a few important interactions to be aware of. Clotrimazole can degrade latex, meaning it may reduce the effectiveness of latex condoms and diaphragms — use alternative contraception for at least five days after use. There is also a theoretical interaction with warfarin and tacrolimus; if you take either of these medicines, speak to your doctor before using this product.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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