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Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
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 | Metronidazole 400mg Tablets |
| Medication Form | Tablets |
| Used for | Bacterial infections, including bacterial vaginosis, trichomoniasis, dental infections, and other bacterial and parasitic infections. |
| Active Ingredients | Metronidazole |
| Strength | 400mg |
| Side Effects | Diarrhoea, nausea, headaches, dizziness, vomiting, metallic taste |
| Patient Information Leaflet | Metronidazole 400mg pil |
Metronidazole 400mg tablets are used to treat a range of bacterial and parasitic infections, including:
Metronidazole can also be used to prevent infections after surgery.
Oral metronidazole is an antibiotic that targets and kills bacteria and parasites. It works by entering bacterial cells and disrupting their ability to produce essential proteins, DNA, and RNA. This stops the bacteria from growing and multiplying, so your immune system can clear the infection. Metronidazole is particularly effective against anaerobic bacteria, which thrive in low-oxygen environments.
Metronidazole 400mg tablets are suitable for most adults. However, they should not be taken by those who:
If you’re unsure whether this medication is suitable for you, read the patient information leaflet or speak to one of our pharmacists following a short online consultation for advice.
Always take Metronidazole exactly as your doctor or pharmacist has told you. Complete the full course of treatment, even if you start feeling better. Do not stop and start taking the tablets, as this could cause unwanted side effects or reduce the effectiveness of treatment.
The dosage of Metronidazole 400mg tablets depends on the type and severity of the infection being treated. Your pharmacist or doctor will advise you on the correct dose for your condition.
For bacterial vaginosis, the typical dosage is:
For other bacterial infections, the usual adult dose is 400mg every 8 hours. The length of treatment will depend on your condition, but you need to complete the full course even if you start feeling better.
Like all medicines, there are some side effects of Metronidazole, although not everyone will experience them.
Speak to a doctor or call 111 immediately if you experience any of the following:
Seek medical attention immediately if you experience any of the following:
If you experience any severe or concerning side effects, stop taking Metronidazole and seek immediate medical attention. Refer to the patient information leaflet for a complete list of side effects.
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed here. You can also report side effects directly via the Yellow Card Scheme. Reporting side effects can help provide more information on the safety of this medicine.
Active Ingredients: Metronidazole.
Other ingredients: Anhydrous calcium hydrogen phosphate, maize starch, povidone, crospovidone, microcrystalline cellulose, colloidal anhydrous silica, magnesium stearate, hypromellose, and polyethylene glycol.
Please note that inactive ingredients can vary depending on the manufacturer. If you have any known allergies or hypersensitivities, including peanut (arachis) oil, lactose, gelatin, soy, or certain dyes and preservatives, inform us during your consultation and carefully review the ingredient list prior to use.
You can buy Metronidazole tablets online from Click2Pharmacy. These antibiotic tablets are prescription-only, so you’ll need to complete a short online consultation. One of our licensed pharmacists will review your details to make sure the medication is suitable for you. Once approved, your treatment will be delivered straight to your door in discreet packaging.
It’s strongly advised not to drink alcohol while taking Metronidazole tablets and for 48 hours after finishing your course, as it might cause unpleasant side effects like feeling sick, vomiting, stomach pain, hot flushes, fast heartbeat, and headache.
When used to treat bacterial vaginosis, Metronidazole usually begins to alleviate symptoms within a few days of starting treatment. Most women notice improvement in symptoms such as discharge and odour within 2-3 days. However, you must complete the full course of treatment, even if you start feeling better, to make sure the infection is fully cleared.
Metronidazole shouldn’t be taken during pregnancy unless considered absolutely necessary. Consult a doctor or pharmacist if you are struggling with symptoms during pregnancy for alternative medications.
It’s better not to use Metronidazole if you’re breastfeeding, as small amounts may pass into the mother’s milk. Speak to your doctor or pharmacist for advice.
If you forget to take your dose, take it as soon as you remember. However, if it’s almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose to make up for a forgotten dose.
Metronidazole may interact with other medications, like blood thinners, lithium, medicines for epilepsy, and some antibiotics. Always disclose your medication history during your online consultation for a pharmacist’s review.
No, Metronidazole treats bacterial vaginal infections, not yeast infections like thrush. While bacterial vaginosis and yeast infections may share some symptoms, they are different conditions. Yeast infections like thrush are caused by fungal overgrowth, whereas bacterial vaginosis is caused by bacterial overgrowth.
“Metronidazole 400mg tablets are a really effective treatment for bacterial infections, including those causing bacterial vaginosis. It can target and eliminate specific bacteria and parasites, making them a reliable choice for relieving symptoms.”
Dr Hussain Ahmad
Page content authored by Mr Mohammed, last reviewed by Amjad Khan on 20th April 2026.
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