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Variety of delivery options including next day & free delivery.
Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
Fill in a quick online consultation for our licensed pharmacists to review.
Our pharmacists will review your treatment to ensure it’s suitable.
Your treatment will be delivered to your door quickly & discreetly.
| Medication Name | Canesten Pessary |
| Medication Form | Vaginal pessary, used with an applicator |
| Used for | Treatment of vaginal thrush (candidiasis) |
| Who can use | Adult women aged 18 and over |
| Active Ingredient(s) | Clotrimazole 100mg, 200mg or 500mg |
| Usual Dose | One pessary inserted at night: 100mg for 6 nights, 200mg for 3 nights, or 500mg as a single dose |
| Common Side Effects | Vaginal irritation, burning, itching |
| Prescription Required | No, available as a Pharmacy (P) medicine under pharmacist supervision |
| Patient Information Leaflet | Canesten 100mg Pessary PIL |
Canesten Pessary is used to treat vaginal thrush (candidiasis). It’s inserted into the vagina so it works directly at the site of the infection.
Thrush is caused by a yeast called Candida, which normally lives harmlessly in the vagina. Certain factors, such as hormonal changes, antibiotics or perfumed soaps, can upset this natural balance and allow the yeast to multiply, leading to symptoms like:
Not everyone with thrush experiences all of these symptoms. You may only notice one or two.
Canesten thrush pessaries contain clotrimazole, an antifungal medicine that belongs to a group called azoles.
Clotrimazole works by targeting the cell membrane of the Candida yeast. It blocks the fungus from producing a substance it needs to keep its cell membrane intact. Without this, the fungal cell breaks down, and the yeast cannot survive.
Because the pessary is inserted directly into the vagina, clotrimazole acts at the site of the infection rather than first travelling through the rest of the body.
Canesten Pessary is suitable for adult women who have been diagnosed with vaginal thrush.
Don’t use Canesten Pessary if you:
Speak to your doctor before using Canesten Pessary if:
Canesten Pessary can be used during pregnancy and while breastfeeding, but tell your doctor or midwife before using it.
Wash your hands before and after handling the applicator and pessary.
Use Canesten Pessaries preferably before going to sleep, so the pessary stays in place overnight:
It’s normal to notice a white, chalky discharge as the pessary dissolves. This doesn’t mean the treatment hasn’t worked. If you notice undissolved pessary pieces, speak to your doctor or pharmacist, as the treatment may not have worked properly.
Symptoms of thrush should start to improve within three days of treatment. Contact your doctor if your symptoms haven’t improved after 7 days, or if they return after that time.
Like all medicines, Canesten Pessaries can cause side effects, though not everyone gets them.
After using the pessary, you might experience:
Stop using the pessaries and contact your doctor straight away, or go to your nearest A&E, if you notice:
If you notice any side effects not listed here, tell your doctor or pharmacist. You can also report side effects directly through the Yellow Card Scheme.
Active ingredient: Clotrimazole, at a strength of 100mg, 200mg or 500mg depending on the pessary
Other ingredients: Calcium lactate pentahydrate, maize starch, crospovidone, colloidal anhydrous silica, lactic acid, lactose monohydrate, magnesium stearate, hypromellose and microcrystalline cellulose
GOOD Based on 184 reviews Posted on Google Bradley Robinson30/04/2026 Absolutely Amazing staff! Such a help thank you so muchPosted on Google Samiur Rahman30/04/2026 Best pharmacy in the UK. The staff here are very helpful, empathetic, understanding and compassionate. Brilliant customer service and staff are actual people who use their discretion to help people.Posted on Google Vivien donnellon29/04/2026 Extremely efficient and knowledgeable information given. All my questions were answered and also some advise regarding the issue. Thank you RehanaPosted on Google james watkins22/04/2026 Brilliant device ordered yesterday received it today
Symptoms like itching, burning and soreness should start to ease within a few days of using Canesten Pessaries. Discharge may look and feel different as the pessary dissolves, which is a normal part of treatment rather than a sign it isn’t working. If your symptoms haven’t improved after 7 days, speak to your doctor.
The chalky, white residue comes from the pessary dissolving inside the vagina, and it usually clears up within a day or two once the pessary has fully broken down. It doesn’t mean the treatment hasn’t worked. If you notice solid, undissolved pieces rather than a chalky residue, speak to your doctor or pharmacist.
Canesten Pessaries are designed to dissolve overnight, using the natural moisture in the vagina. Inserting the pessary as deeply as possible at bedtime helps it dissolve fully. If you have vaginal dryness, you might notice small undissolved pieces the following morning, in which case a vaginal cream alongside the pessary may be more suitable.
Most women notice their thrush symptoms starting to improve within 3 days of treatment. Full relief can take a little longer, particularly if you’re using the 6-night 100mg course. Contact your doctor if you don’t see any improvement after 7 days, or if your symptoms come back.
There’s no need to avoid the toilet after inserting a Canesten Pessary, as it’s placed high in the vagina away from the urethra. Inserting the pessary at bedtime, as recommended, also means it has plenty of time to dissolve before you’re up and about the next day.
This depends on the strength you’re using. The 500mg pessary is designed as a single-dose, complete course of treatment. The 200mg pessary needs to be used for 3 consecutive nights, and the 100mg pessary for 6 consecutive nights (or as two pessaries a night for 3 nights). Each course, regardless of the strength you choose, is designed to fully treat the infection.
Canesten Pessaries can be used during pregnancy and while breastfeeding, but you should tell your doctor or midwife before starting treatment. If you’re pregnant, your doctor may recommend inserting the pessary with a finger instead of the applicator.
It’s best to avoid vaginal intercourse while you have thrush and while using Canesten Pessaries, as your partner could become infected. Waiting until your course of treatment is finished and your symptoms have cleared is the safest approach.
Canesten Pessary is available as a Pharmacy (P) medicine, so you don’t need a prescription to buy it. You’ll need to complete a short online consultation, which our pharmacists will review before dispatching your treatment.
Using a Canesten Pessary during your period isn’t recommended, as it may be less effective. It’s best to wait until your period has finished before starting or continuing your course of treatment.
Page content authored by Amjad Khan, last reviewed by Mr Muhammad on 29th July 2026.



