Metronidazole 400mg

Buy Metronidazole for Trichomoniasis

Metronidazole is good antibiotic for use in treating Trichomoniasis. It is available both as a single dose and seven day treatment course. More than 9 in 10 infections clear with a single high dose. For cases that relapse after treatment, a longer course of treatment is advisable.

All our products are genuine UK medicines and are dispensed by our partner pharmacy based in the UK.

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  • Antibiotic treatment available as a single dose or seven day tablet course
  • Do not drink alcohol whilst taking this treatment and for at least 48 hours after completing treatment
  • Test of cure (TOC) recommended after you complete your treatment
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Metronidazole belongs to a group of medicines called antibiotics. It works by killing bacteria and parasites that cause infections in your body.


Do not take Metronidazole if you are allergic (hypersensitive) to metronidazole, nitroimidazoles (e.g. tinidazole) or any of the other ingredients listed in the patient information leaflet.

Pregnancy and Breastfeeding

Metronidazole tablets should not be taken during pregnancy unless considered absolutely necessary. It is better not to take this medicine if you are breastfeeding because small amounts of it may pass into the mother's milk.

Important Interactions

You must tell your doctor if you are taking, have recently taken or might take other medicines, in particular:

  • medicines to stop your blood clotting (e.g. coumarins, warfarin)
  • medicines used to treat epilepsy (e.g. phenobarbital, phenytoin, primidone)
  • lithium (used to treat depression)
  • medicines used to treat cancer (e.g. busulfan, fluorouracil or mycophenolate)
  • disulfiram (used to treat alcohol addiction)
  • medicines used to treat stomach ulcers (e.g. cimetidine)
  • oestrogen contraceptives (known as 'the pill')
  • ciclosporin (used to prevent the rejection of organs after transplant)

Do not drink any alcohol while you are taking Metronidazole tablets and for 48 hours after finishing your course. Drinking alcohol while using Metronidazole tablets might cause unpleasant side effects such as nausea (feeling sick), vomiting (being sick), stomach pain, hot flushes, very fast or uneven heartbeat (palpitations) and headache.

Side Effects
  • skin rash or flushing
  • headache
  • darkening of the urine
  • feeling sleepy or dizzy
  • pains in the muscles or joints
Please Note

All medication can cause side effects. We have only listed a few to be aware of. Details of all side effects, including rare side effects to be aware of, are listed in the patient information leaflet (PIL). When completing your medical questionnaire, it is very important that you answer the questions truthfully. This is to ensure your doctor has a full picture of your medical history before prescribing. List all medicines you are already taking, including non-prescription and herbal medicines.


Tinidazole is another suitable antibiotic if Metronidazole can not be used.

Looking after your medicine

Do not take medicines after the expiry date stamped on the pack. Keep all medicines out of the reach and sight of children.

Medicines are only intended to be used by the person they are prescribed for. Do not give your prescribed medicine to anybody else, even if they have the same symptoms as you. Medicines can be harmful if used by anybody other than the person they have been prescribed for.

References Metronidazole 400mg Patient Information Leaflet
British National Formulary: metronidazole

In the UK, Metronidazole is available on prescription only. This means that you cannot purchase Metronidazole from a pharmacy without having a prescription from a doctor. If purchasing Metronidazole online, you will also require a prescription first. Luckily we provide this included in our service at Anytime Doctor. We never endorse purchasing Metronidazole from sources without a prescription.

Drinking alcohol whilst taking Metronidazole can cause very unpleasant and severe side effects, including a rapid heart rate, drop in blood pressure and liver damage. Unpleasant side effects include feeling or being sick and stomach pains.

It is recommended to avoid all alcohol whilst taking Metronidazole, and also for 48 hours after completing treatment. This is important as it can take 48 hours for the antibiotic to be cleared from your body.

Last reviewed & updated  14/07/2019   Authored  16/09/2009

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