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Buy Metronidazole online.

Metronidazole is a medication that’s used to treat skin infections, mouth infections and rosacea. It’s a prescription only treatment.

Order Metronidazole online for quick and effective treatment of bacterial vaginosis.

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Here’s what's included in the price:
Answer a few questions about your health so we can get to know you better.
Free 24h delivery
Your treatment delivered in secure packaging, the very next day.
We’ll check in with you regularly to see how your treatment is going.
This page was medically reviewed by Dr Daniel Atkinson, GP Clinical Lead on August 02, 2022. Next review due on August 01, 2024.

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Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.

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What is Metronidazole?

Metronidazole is an antibiotic that’s used to treat bacterial infections. It’s prescribed for various conditions including rosacea, infected gums and bacterial vaginosis.

Bacterial vaginosis is a common infection that results in unusual vaginal discharge. It’s not a sexually transmitted infection (STI), but it can increase your risk of getting chlamydia.

Symptoms include a burning sensation when you pee, a grey or green discharge from the vagina and an unpleasant ‘fishy’ smell.

Bacterial vaginosis happens when the natural balance of bacteria in your vagina changes. This sometimes occurs when you have sex with a new partner, have an IUD fitted or use perfumed products around your vagina. The PH balance within the vagina is delicate and introducing anything that upsets the balance can cause infection to thrive.

Metronidazole helps to restore the balance of bacteria in your vagina. Metronidazole is the active ingredient in the generic tablets and in the branded version Flagyl. The branded and generic version are made by different companies and come in slightly different packaging.

Metronidazole tends to be cheaper than Flagyl.

How does Metronidazole work?

Bacterial infections exist in the body by entering a suitable environment and then reproducing. The cells do this by multiplying. The active ingredients in metronidazole pass into the bacteria cells and stop them from producing the proteins they need in order to grow and multiply. Without the ability to multiply the infection weakens and the body uses its natural immune defences to clear up the remaining infection.

The vagina needs some ‘good bacteria’ to keep it healthy, but bacterial vaginosis is caused by the excessive growth of unwanted bacteria, and so the right balance needs to be restored.

What doses of Metronidazole are there?

There are three dosage sizes available: 200mg, 400mg and 500mg. The common prescription for bacterial vaginosis is one 400mg tablet taken twice a day.

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How to take Metronidazole

Always take your medication as directed by your clinician. If you have any doubt, consult the patient leaflet that comes with your medicine.

When you take metronidazole for bacterial vaginosis our clinician will usually advise you to:

  • take one 400mg tablet twice a day for seven days
  • space the doses out evenly (most people take one tablet with breakfast and one with dinner).
  • take the tablets with water.
  • swallow the tablets whole.

How long does it take Metronidazole to work?

Metronidazole is a highly effective treatment for bacterial vaginosis. Most women will see their symptoms clear within two to three days, but it’s important to take the full week’s course even if you feel better. If you still have symptoms after your course of antibiotics has finished, let our clinician know.

What should I do if I make a mistake when taking Metronidazole?

If you forget to take your tablet, then you should take it as soon as you remember. If it’s almost time for you to take the next dose, miss the forgotten tablet and carry on as normal. Never take a double dose of metronidazole.

If you take too much metronidazole, seek medical attention immediately.

Medically reviewed by
Dr Daniel Atkinson
GP Clinical Lead
on August 02, 2022.
Meet Daniel
This page was medically reviewed by Dr Daniel Atkinson, GP Clinical Lead on August 02, 2022. Next review due on August 01, 2024.

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When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.

FAQ: Metronidazole

Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.

Is Metronidazole similar to any other treatments?

As well as being available as a generic tablet, Metronidazole is also available as a branded tablet called Flagyl. There’s also a gel version called Zidoval. All three treatments have the same active ingredient: metronidazole.

How is Metronidazole different from other treatments for bacterial vaginosis?

Some people don’t know that they’ve got bacterial vaginosis, and it often clears up on its own. For others, the symptoms can be unpleasant and recurring. Metronidazole is a popular and effective treatment for bacterial vaginosis, but there are alternative medications too.

Dalacin is another treatment for bacterial vaginosis. Unlike Metronidazole, it’s a cream and contains a slightly different antibiotic called clindamycin phosphate. Dalacin is applied to the vagina before you go to sleep. A course of Dalacin usually lasts three to five days.

Which version of Metronidazole should I use?

When it comes to the tablets, there isn’t much difference between the generic tablets and the branded tablets. They may look different and come in different packaging, but the job they do and the way they work is the same.

Zidoval - the gel version of metronidazole - might be the best treatment option if your bacterial vaginosis is quite mild or if you don’t like taking tablets.

During your consultation with one of our clinicians you will be able to get expert advice on the right form and course of treatment to help you get rid of the infection quickly and effectively.

How effective is Metronidazole?

Studies show that Metronidazole is highly effective at treating bacterial vaginosis. Ninety percent of women who take metronidazole find that it treats bacterial vaginosis within a week. It’s also 50% effective at stopping the infection from coming back for a year after treatment ends.

Do I need a prescription for Metronidazole?

Yes. All antibiotics need to be prescribed by a trained clinician. This is because all infections need to be monitored as they’re treated to ensure that they don’t spread or worsen.

In order to get a prescription for Metronidazole you’ll need to show evidence that you have tested positive for bacterial vaginosis. You can do this by providing a test result from a clinic, or you can buy a testing kit from Treated and show your results to our clinician during your consultation.

When it comes to antibiotics, it’s important to ensure that you are taking the right medication to treat the right infection, so our clinicians will chat to you and build up a full picture before prescribing the best treatment for your needs.

Why should I buy Metronidazole online with Treated?

We know that bacterial vaginosis can be an unwelcome and annoying inconvenience. Through our service you have the power to take control and treat bacterial vaginosis.

Tell us about your health, and get tailored treatment recommendations from our clinicians. You can choose your medication from there, and we’ll deliver it to your door.

We’ll check in with you to see how you’re getting on with your treatment. And if you’ve got any questions about it, our clinicians are on hand to help. Just sign in to your account and send them a message.
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