Metronidazole is most commonly used as a treatment for Bacterial Vaginosis. BV as it's more commonly known is a bacterial infection of the Vagina which can effect many females throughout their life time.


Order in the next: to receive your order Wednesday, 30th September
£ 16.99
In stock


What is Metronidazole?

Metronidazole is an antibiotic which is prescribed by doctors to treat bacterial infections such as Bacterial Vaginosis. It can treat infections all over the body such as the vagina, stomach, liver, skin, joints, brain and respiratory tract. The bacteria it can combat are known as anaerobic bacteria which are organisms which do not rely on oxygen to be able to multiple and spread. This is why they can be responsible for variety of internal infections. 

Different Strengths of Metronidazole:

This medicine can be prescribed in either 200mg or 400mg strengths. At medicine direct you can purchase the 400mg with a prescription. If you do not yet have a prescription, you can fill in an evaluation form and our doctors can provide you with a prescription for Metronidazole if they deem it appropriate to your condition.

Metronidazole 400mg

The 400mg strength dose of Metronidazole can be used to treat both adults and children. It most commonly is prescribed to treat bacterial infections, genital infections in women, and infected leg or pressure sores.

How should Metronidazole be taken?

You should always take your medicine as told by your doctor. You should not drink alcohol whilst taking Metronidazole, or within 48 hours of stopping it, as it is known to cause side effects. The tablets are to be swallowed whole whilst eating a meal or just after, alongside a glass of water. Do not chew or break the tablet as this can increase the chance of side effects as the medicine will be released too quickly.

If you are taking Metronidazole to treat a vaginal infection, your partner may also need to be prescribed antibiotics to ensure you do not become re-infected.  

As with all antibiotics, you cannot take them to treat viral infections such as the flu or a common cold as they will not work.

What happens if i miss a dose?

If you have forgotten to take a dose, then take it as soon as you remember. If it is near to your next dose, however, skip it and take your next tablet as scheduled. You should not double dose to make up for forgotten tablets.

The following information contains guidelines on how Metronidazole should be administered to treat certain conditions. These are general instructions. Make sure you follow the exact advice of your doctor.

  • Treat bacterial infections

It is safe for adults and children over the age of 10 to take an initial 800mg dose, followed by 400mg taken every 8 hours. The course will usually continue for 7 days, depending on your ailment.

  • Treatment of an infection caused by Trichomonas

You will either be prescribed to take 200mg three times daily, or 400mg twice a day for between 5 days to a week.

  • Treat genital infection in women

Women are administered with 400mg of Metronidazole to take twice a day. This course will last for a week.

Metronidazole during Pregnancy

Metronidazole is safe to use during pregnancy. During breastfeeding, extra care must be taken when applying the cream to ensure that your hands are washed before touching your breasts. We always recommend notifying your doctor before taking any medications during pregnancy or breastfeeding.

Metronidazole is safe to use during pregnancy and breastfeeding. During breastfeeding, extra care must be taken when applying the cream to ensure that your hands are washed before touching your breasts. We always recommend notifying your doctor before taking any medications during pregnancy or breastfeeding.

Metronidazole Side Effects

It is important to be aware of potential side effects of any medication you are taking. It will allow you to recognise the symptoms of a reaction to the drug and contact your doctor for advice. If you begin to experience side effects which are severe, seek immediate medical help.

Common Side Effects

  • Pain in your back
  • Distorted vision
  • Sensation of burning, tingling or itching of the skin
  • Feeling agitated, confusion, depression, irritability or unusual tiredness
  • Pain in the eye
  • Fever
  • Hallucinations
  • Nausea/ vomiting
  • Muscles feeling shaky or uncoordinated

Uncommon Side Effects

  • Stools or urine looking to be bloody
  • Body aching
  • Breathlessness
  • Frequency in needing to urinate which may cause pain
  • Symptoms usually associated with a cold such as stuffy nose, chills, ear congestion, runny nose and sneezing
  • Irritation of the vaginal. May increase discharge or cause dryness
  • Bleeding of gums
  • Feeling bloated
  • Heart beat increased
  • Appetite change

Do not cut short your course of antibiotics, even if your symptoms seem to have improved. You will increase your risk of becoming re-infected with a bacterium which cannot be easily treated with antibiotics or resistant all together.

In rare cases patients taking Metronidazole can suffer from a severe allergic reaction to the medicine. If you experience any of the warning symptoms you MUST contact an emergency service such as 111 or 999 immediately. The signs of a severe allergic reaction are:

  • Developing a skin rash which is itchy, red, swollen, blistered or peeling
  • Your chest or throat feeling tight. This can also be displayed through wheezing.
  • Experiencing difficulty in breathing or talking
  • Your facial extremities become swollen i.e. you mouth, face, lips, tongue or throat.

Store Metronidazole tablets in dry conditions below 25oc. Ensure they remain out of reach of children and pets. Do not use them past their expiry date. Ask your pharmacist for advice on how to dispose on any medication not used. You cannot dispose of medicine via wastewater or the house hold waste.

How can I buy Metronidazole online in the UK?

If you are a valid UK citizen and have a prescription from a doctor, you will be able to purchase Metronidazole online in the UK with us, Medicine Direct. If you do not yet have a prescription for Metronidazole, you can fill in one of our health questionnaires which will be reviewed by one of our doctors. After assessing your answers, the doctors will then prescribe you the medicine if they deem it appropriate to do so. Medicine Direct provide a wide range of Women’s Health treatments that are available to buy online.

Can you drink alcohol whilst taking Metronidazole?

Metronidazole is known to react badly with alcohol consumptions. It can cause unpleasant side effects such as:

  • Flushing
  • Headache
  • Feeling dizzy
  • Feeling sick or vomiting
  • Breathlessness
  • Heartbeat becoming irregular or quicker

The advice given by a manufacturer of metronidazole is to completely avoid drinking alcohol whilst taking this medicine, and to continue not drinking for at least 48 hours after finishing your course. Even a small amount of alcohol can begin to react negatively with the drug. As some cold and cough medicines as well as mouthwashes can contain alcohol, it is safer to avoid using these too whilst taking the medicine.

Who can take Metronidazole?

No, Metronidazole may not be suitable for you if you have a pre-existing medical issue such as:

  • liver disease, 
  • crohn’s disease, 
  • blood disorders, 
  • epilepsy or a nervous system condition. 

If you have any of these conditions you may still be able to take this medicine, just in smaller doses. Ensure you disclose all medication and past medical history to your doctor before being prescribed the antibiotic.

Metronidazole Drug Interactions

If you are taking any other medications, it is possible that these may affect the way Metronidazole works.

Please inform your doctor if you are taking any other medications. The most common medications that can interact with the effectiveness of Metronidazole are:

  • Blood Thinning medication such as Warfarin
  • Mental health medications such as lithium based drugs
  • Medications used tot reat alcoholics that contain Disulfiram
  • Epilepsy medications
  • Ciclosporin
  • Certain cancer medications such as fluorouracil or busulfan
  • Any other liquid based medications

Please tell your pharmacist or Doctor if you are taking any other forms of medications, either prescription or over the counter medicines. This also includes any vitamins or supplements.

Write Your Own Review
You're reviewing:Metronidazole
Your Rating

No Related Posts

How It Works
  • 01. Choose Treatment

    Select the treatment or medication you need and answer a few questions online regarding your condition.

  • 02. Online Consultation

    Our Independent Prescribers will review your questions and assess your suitability for the medication.

  • 03. Express Delivery

    Your medication is dispensed and delivered directly to you from our UK based Pharmacy.

Medicine Direct Delivery Information

Delivery CompanyDelivery ServicePriceDetails
Free Delivery - Standard UK Tracked Free 3 - 4 Day Delivery
Next Day Delivery - Tracked £5.90 Order by 2pm for Next Day Delivery
Next Day Morning Delivery before 10.30am £13.90 Express Morning Delivery by 10.30am
DPD Delivery Tracked Saturday Delivery £9 On Orders placed before 2pm Friday