metronidazole 400mg, pack of 21 tablets

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Metronidazole Tablets

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metronidazole 400mg, pack of 21 tablets
Metronidazole is an antibiotic used to treat bacterial vaginosis. Metronidazole tablets kill the bacteria which cause the vaginal infection.

Order metronidazole tablets online - our service is discreet and strictly confidential. When you place your order, you need to fill in a brief questionnaire about your health and your symptoms. Our doctor will review your order and approve appropriate treatment.

Please note, where a generic product has been ordered we may use a range of manufacturers in order to provide you with your medication, in order to maintain our service levels.

Start Order

To place an order, fill in a brief questionnaire. One of our doctors will review your order and prescribe a suitable treatment.


Metronidazole 7 day course £18
Metronidazole 1 day course £15

Prices include prescription and standard delivery. Product packaging may differ from the image above.

In a hurry? Choose Click and Collect and pick up your order after just 4 hours from a Superdrug Pharmacy.

Delivery options

Delivery method Cost Estimated delivery

You will choose your delivery option at the checkout. Delivery options may vary depending on the pack size and dosage chosen.

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About Metronidazole Tablets

Metronidazole tablets are an antibiotic which is used to treat a variety of conditions including:

  • bacterial vaginosis (BV)
  • skin infections, rosacea and mouth infections
  • pelvic inflammatory disease
  • infected insect bites, skin ulcers, bed sores, and wounds
Metronidazole is also available in liquid, gel, cream, and a suppository (which is inserted into your bottom). It is also given by injection in the hospital. 

You need a prescription to take metronidazole. A doctor will decide how you should take metronidazole, the dose and for how long. You can buy metronidazole tablets to treat BV from at Superdrug Online Doctor.

How do metronidazole tablets work?

Metronidazole tablets stop the growth of the bacteria (or parasite) that is causing the infection which is making you ill. 

How effective are metronidazole tablets for BV?

Studies show that metronidazole is over 90% effective at treating BV. In most cases, you should feel better within a few days of taking metronidazole.

How do I take metronidazole tablets? 

You take metronidazole tablets whole with water, during or after meals. Always follow the instructions from your doctor on how to take metronidazole as these instructions are specific to your condition.

It is essential that you do not drink alcohol while taking metronidazole or for 48 hours after you have finished your course. Drinking alcohol whilst taking metronidazole can cause unpleasant side effects such as being sick, headaches, hot flushes, and stomach pains. 

What are the dosages of metronidazole?

To treat bacterial vaginosis (BV), your doctor will prescribe you either a 1 day or 7 day course.

  • 1 day course: take 5 x 400mg metronidazole tablets at once
  • 7 day course: take 1 x 400mg tablet twice a day

To treat other common conditions, the dose will vary depending on your illness and your own health condition. 

You need a prescription to buy metronidazole. 

You can buy metronidazole online from a registered and reputable online doctor, such as Superdrug Online Doctor, in a few simple steps:

  1. Click "Start Order" and fill in a brief medical questionnaire. 
  2. Our doctors will then review your answers and make sure it is safe to prescribe you metronidazole. 
  3. You then decide how you would like to receive your prescription: either as a discreet package through the post or you can ‘Click and Collect’ it from your local Superdrug pharmacy.
  4. At any point, you can message our doctors for advice through your Patient Account.
If you are using a website to buy medication, the Government’s online checker can reassure you that the site you are using is operating legally and safely.

Can you buy metronidazole tablets over the counter?

No, you cannot buy metronidazole over the counter because you need a prescription to buy it.

How much does metronidazole cost?

If you are prescribed a 1 day course, this costs £15. A 7 day course costs £18.

Metronidazole can interact with certain other medications. 

This includes:

  • Warfarin and other blood thinning agents
  • Lithium
  • medicines used to treat epilepsy
  • certain medications used to treat cancer
  • medications used to treat alcohol dependence
  • ciclosporin

Tell your prescribing doctor about any medications you are currently taking, including herbal remedies and non-prescription medication.

Metronidazole interacts with alcohol and you must abstain from drinking alcohol while taking it. Do not resume drinking until at last two days after you have taken the last tablet.

Like most medications, metronidazole tablets can cause side effects in some people. 

You need to see a doctor straight away if you experience:

  • swellings of hands, feet, ankles or any other body part
  • breathing problems
  • hives or an itchy rash
  • a stiff neck
  • headache
  • hallucinations
  • difficulty using your arms and legs
  • confusion and difficulty speaking

These side effects are very rare but serious. You need medical attention immediately if you develop any of them.

Tell your doctor if you experience:

  • yellowing of the skin and eyes
  • severe tiredness
  • unexpected infections
  • mouth ulcers
  • stomach pain

For a full list of all known side effects of metronidazole, read the patient information leaflet supplied with your tablets.

Please note, that you cannot use condoms or contraceptive diaphragms while using many vaginal creams or gels. Barrier contraceptives are weakened and made less effective in preventing pregnancy. You should use alternative precautions for at least five days after using this product.
Metronidazole NHS 2018 [accessed 14th July 2021]



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