Zidoval Gel

Try Zidoval gel for effective and reliable BV treatment

Zidoval gel contains the antibiotic metronidazole, which is an effective treatment for bacterial vaginosis (BV). The gel comes as a 7-day course and is applied directly inside the vagina.

Our prices

Quantity Strength Price
1 x 40g tube0.75%£26.99
Prices exclude a prescription fee. This treatment requires a quick online consultation,
which a doctor will review to determine if a prescription is appropriate.

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What is Zidoval Gel?

Zidoval Gel is an antibiotic used to treat an infection of the vagina called bacterial vaginosis (or BV for short). Bacterial vaginosis is a common infection which is caused by an upset to the natural level of bacteria within the vagina. While it is symptom-less in 50% of women it is often identified by a fishy smell and changes to vaginal discharge. It is not a sexually transmitted infection but being sexually active increases your likelihood of developing BV.  

How does Zidoval Gel work?

Zidoval Gel is applied directly to the site of the infection. It works by killing the bacteria that are causing the infection. 

Is Zidoval Gel suitable for sensitive skin?

Zidoval is suitable for sensitive skin as it is also used to treat skin conditions like rosacea. If you have an allergy to Zidoval or any of the ingredients in the gel then this treatment may not be suitable for you.  

When can I stop using Zidoval Gel?

Always use Zidoval Gel for the length of time your doctor has prescribed otherwise the infection is likely to return, even if your symptoms clear up before this. For treating bacterial vaginosis the treatment time is usually five days. 

How long does Zidoval Gel take to work?

Zidoval Gel will start to work after a few days so you can expect your symptoms to improve within several days of beginning treatment. Bacterial Vaginosis will usually clear up within 5-7 days. 


Active ingredients

Zidoval gel contains 1% active metronidazole. 

Inactive ingredients

The inactive ingredients are betadex, edetate disodium, hydroxyethyl cellulose 250 HHX, methylparaben, niacinamide, phenoxyethanol, propylene glycol, propylparaben, and purified water.


Can I use Zidoval during the day?

Zidoval Gel for treating BV should be inserted at nighttime before you go to bed to allow it to work properly. 

Can I use a tampon whilst using Zidoval?

It's recommended not to use Zidoval while you are on your period and you shouldn't wear a tampon during Zidoval treatment as it can soak up the gel, stopping it from being absorbed by the vagina. You can wear a sanitary pad for greater comfort as you may experience a slight leakage while you are using the gel.

How to use Zidoval gel

Zidoval Gel is inserted inside the vagina once a day at nighttime. Before starting, wash and dry your hands. Some brands will have prefilled applicators ready for use, while others come as a tube of gel that you measure into the applicator. Read over the instructions given with the gel and use as directed. When you're ready, get into a comfortable position and insert the applicator into the vagina. Press down on the plunger until it stops then carefully slide the applicator back out. Always use the medicine for the time period prescribed, even if your symptoms are better, to make sure the infection is treated properly. 

Side Effects

Zidoval side effects

Common side effects include: 

  • Thrush
  • Vaginal discharge
  • Itching, burning or discomfort in the vagina
  • Numbness
  • Pelvic pain
  • Abdominal pain
  • Lack of appetite
  • Altered taste 
  • Furry tongue 
  • Nausea 
  • Vomiting 
  • Headache
  • Dizziness 
  • Less common side effects include: 
  • Bleeding or spotting 
  • Swelling around the vulva 
  • Discoloured urine 
  • Bloating 
  • Diarrhea 
  • Constipation 
  • Metallic taste 
  • Tiredness 
  • Difficulty sleeping 
  • Itching
  • Cramps


Do not use Zidoval Gel if: 

  • You are allergic to metronidazole or any of the ingredients 
  • You are allergic to any other type of nitroimidazole antibiotic
  • You are allergic to parabens 

Consult your doctor if: 

  • You have ever experienced blood problems or a blood disease 
  • You think you have thrush
  • You are having your period 
  • You are scheduled to have a blood test 

Drug interactions

You should avoid using other types of medicines that are used inside of the vagina while you are using Zidoval Gel. The treatment is unlikely to interact with any other medicines but there is a possibility it may affect: 

  • Ciclosporin
  • Fluorouracil
  • Lithium 
  • Warfarin 

How to cope with Zidoval side effects

If you experience nausea then stick to small, simple meals and avoid foods which are rich or spicy. Drink plenty of water in small amounts especially if you vomit or get diarrhoea. If it lasts for more than 24 hours then consult your doctor. Eating plain foods and drinking water can help to ease a metallic taste in your mouth.  

Zidoval and pregnancy

Consult your doctor before using Zidoval if you are pregnant as it may not be suitable.

Zidoval and alcohol

You should not drink alcohol while using Zidoval as it can cause adverse side effects. After finishing your treatment you should wait 2 days before drinking alcohol. 

Does Zidoval affect birth control?

Zidoval does not have an effect on any type of contraception. If you experience vomiting or diarrhoea as a side effect then this may affect your protection against pregnancy while taking the contraceptive pill. Follow the instructions given for missing a pill if this happens. 

Can Zidoval affect fertility?

Zidoval has not been shown to have an effect on fertility. If you are pregnant then do not use Zidoval without advice from a doctor. 

Can Zidoval cause bleeding?

Using Zidoval Gel does not cause vaginal bleeding and this is not a sign of bacterial vaginosis. If you experience unexplained vaginal bleeding this could be a sign of a sexually transmitted infection. You can get tested at a local sexual health clinic or by using one of our discreet at home testing kits. 

Does Zidoval sting/burn when you use it?

Burning or irritation of the vagina is a possible side effect when using Zidoval Gel. The majority of women don't experience side effects with Zidoval Gel however.

Treatment Options

Zidoval Tablets vs Metronidazole Gel

Zidoval contains Metronidazole which is available in the form of oral tablets, gel or cream. Which option you choose mainly depends on your personal preference. The tablets produce more side effects such as a metallic taste and interference with Warfarin and severe reactions when mixed with alcohol. Zidoval Gel does not cause these side effects. 

What are the different uses of Zidoval?

Zidoval is also used to treat skin and mouth infections and a skin condition called rosacea. It can also be used for pelvic inflammatory disease (PID), bed sores, skin ulcers, infected insect bites and wounds. 


Is Zidoval an antibiotic?

Zidoval is an antibiotic which kills the bacteria causing the infection. 

Does Zidoval cause thrush?

Thrush is a common side effect of Zidoval Gel. Common symptoms include itching, redness and a white cottage cheese-like discharge. Ask your pharmacist for advice to get an appropriate treatment, Zidoval Gel will not treat thrush.

Is Zidoval supposed to leak out?

It is normal for Zidoval Gel to leak out during treatment. It's recommended to wear a light sanitary pad while you are using Zidoval. 

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I moved 150 miles from my GP (to uni) and was unable to go home or visit a walk in for another 2 days due to being at work (12.5 hour shifts). I filled out a quick form - and 1.5 days later I had my antibiotics delivered to my door and I am on the mend. 10/10.