Metronidazole 400mg for Tooth Infection

Metronidazole 400mg for Tooth Infection
- Does not contain penicillin
- Full 5-day course
- Prescription-only medication following clinical assessment
- Fully inspected and regulated service
- Next-day delivery available*
If you have a painful tooth infection and can’t see a dentist immediately, we may be able to help. You’ll need to complete a simple online consultation so our prescribers can recommend the best option for you.
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About the product
What is metronidazole?
Metronidazole is a prescription medication used to treat a range of bacterial infections, such as a dental abscess and other dental infections. It works by damaging the DNA of bacteria. Unlike amoxicillin, it does not contain penicillin.
Metronidazole is suitable for people with a penicillin allergy as it does not contain penicillin. Your experienced prescriber checks your medical history to make sure metronidazole is a safe and effective treatment for you.
Metronidazole for a tooth infection
Metronidazole may be suitable if you:
- Have pain or swelling from a dental infection
- Have a penicillin allergy
- Cannot see your dentist for immediate dental care
- Have a fever or swollen glands
Metronidazole is one possible treatment option for a tooth infection. Our prescribers will recommend the most appropriate treatment based on your symptoms.
During your online consultation, we’ll ask you about:
- The infection, including location and any symptoms you’re feeling
- Any medical conditions you have
- Past or present medical allergies, such as to penicillin
- Any medication or treatments you’re currently having
- If you’re pregnant or breastfeeding
This will help your prescriber find a treatment that’s safe and effective for you. Antibiotics are only prescribed when clinically appropriate to reduce unnecessary antibiotic use and antimicrobial resistance.
What are the side effects of metronidazole?
Like all medication, metronidazole can cause some side effects. Most are mild and pass once you finish your treatment, such as:
- Diarrhoea
- Feeling or being sick
- A metallic taste in your mouth or a furry tongue
- Skin changes, such as itchiness, or dry patches
Your prescriber will explain any side effects and offer specialist guidance on how to manage them.
More serious side effects are rare and need urgent medical care. These include yellowing skin or eyes, unexplained infections, ulcers or bleeding, severe abdominal pain, or changes to vision. If you notice any gradual or sudden changes to your health during or after your treatment, speak to your doctor.
Please call 999 or go straight to A&E if you have:
- Difficulty breathing or swallowing
- Swelling of the face, lips, tongue or throat
If you notice any other side effects or if any side effects become difficult to manage, please speak to your doctor or pharmacist for further guidance. You can also report side effects through the Yellow Card Scheme to help others take their medication safely.
Frequently Asked Questions
Metronidazole is a prescription-only medicine, which means it’s not available to buy over the counter at a pharmacy or chemist. If you need metronidazole, you must get a prescription from a licensed prescriber, such as from your GP or a prescribing pharmacist.
At My Chemist Plus, our UK-registered prescribers can issue you a private prescription for metronidazole online. Just fill out our quick consultation form to find out whether you’re eligible.
You need to have a prescription to take metronidazole. Prescriptions can be issued by a prescribing healthcare professional, such as your GP or a licensed pharmacist.
At My Chemist Plus, all of our prescribers are registered and regulated by the General Pharmaceutical Council (GHPC) in the UK and have years of prescribing experience.
You can order metronidazole online for a tooth infection after a clinical assessment with a UK-registered prescriber.
At My Chemist Plus, our prescribers are registered and regulated by the General Pharmaceutical Council (GHPC) and can issue prescriptions for metronidazole to patients that need it. Just fill out our simple medical questionnaire to start your consultation process.
For adults in the UK, the typical dosage of metronidazole for a mouth infection is 400mg three times a day for up to five days. If you don’t see an improvement after three days, seek further advice from your doctor.
Your prescriber or pharmacist will help you understand how to take your medication. This information is also included in the patient information leaflet inside your medicine box.
Always take metronidazole exactly as your prescriber tells you to. It’s important to finish your treatment course even if you start feeling better. If you finish your course and still feel unwell, speak to your doctor or pharmacist.
- Take one tablet three times a day with or just after a meal. For example, one with breakfast, one with lunch, and one with dinner.
- Swallow the tablet with water – do not split, crush or chew it.
If you take more than one tablet at a time, tell your doctor and go to the hospital right away. Take any remaining tablets and the medication box with you.
If you forget to take a dose, take it as soon as you remember. But, if it is nearly time for your next dose, skip the missed dose. Do not take two tablets at the same time to make up for the missed dose.
How long it takes to recover from a dental abscess will be different for everybody. Most people start to notice a difference after a few days, but for others it may take more time. If you don’t notice any changes after three days, speak to your doctor.
It’s important to follow your prescriber’s instructions and complete your treatment even if you feel better. If you don’t notice any changes or your symptoms worsen, speak to your prescriber or dentist.
Metronidazole is an antibiotic used to treat several bacterial infections, including dental infections. It can help reduce swelling and pain, and can be a good option for people who can not take penicillin.
If you’re struggling with a tooth infection and have a penicillin allergy, start your online consultation with one of our UK-registered prescribers to find out whether metronidazole could be right with you.
No, you should not drink alcohol with metronidazole, or for 48 hours after you complete your course. This is because alcohol can interact with metronidazole and cause side effects, such as nausea and vomiting.
If you’re pregnant or breastfeeding, you may be able to take metronidazole if you need it. Let your prescriber or doctor know during your assessment if you’re pregnant, breastfeeding, or planning to have a baby.
If you’re breastfeeding, it’s possible for small amounts of metronidazole to pass into your breast milk. This is unlikely to cause side effects in your baby, but some babies may have diarrhoea. Your prescriber or doctor will talk you through this and any other concerns you may have.
Regular painkillers may be taken with metronidazole to help ease discomfort, such as ibuprofen. If you’re taking any other medication for pain or another condition, let your prescriber or doctor know during your clinical assessment.
Delivery Information
Royal Mail Tracked 24
1–2 working days
£3.99
DPD Next Working Day Delivery
Next working day delivery
£6.95
Royal Mail Special Delivery
Guaranteed next working day delivery
£8.95
Discreet Packaging
All orders are sent in plain, unmarked packaging with no indication of the contents. Your privacy is our priority.
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General Pharmaceutical Council
My Chemist Plus is registered and regulated by the GPhC, who are the official body that regulates and inspects all pharmacies in the UK. They are responsible to ensure we provide the highest standards in care.

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My Chemist Plus is certified by Legit Script, who monitors online pharmacies to evaluate compliance, adherence and licensing to regulation.
