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Amoxicilline pour les infections

Make sure you tell your doctor if you are allergic to penicillin. Amoxicillin is a type of penicillin - do not take it if you are allergic to penicillin.

Space your doses out evenly over the day and complete the full course of the antibiotic, even if you feel your infection has cleared up. You can take amoxicillin either before or after food.

If you have an allergic reaction (such as any swelling around your mouth, any difficulties breathing or a red rash) contact a doctor for advice straightaway.

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About amoxicillin

Type de médicament

A penicillin antibiotic

Utilisé pour

Infections (in adults and children)

Disponible en

Capsules, oral liquid medicine, soluble tablets, sachets of powder and injections

Amoxicillin is used to treat bacterial infections (not viral infections). Amoxicillin is mainly prescribed for different types of infection including; sinus and chest infections, urine infections, ear infections, and some dental infections. You may also be prescribed amoxicillin to prevent an infection from occurring if you are at particular risk of getting an infection. Amoxicillin is a penicillin antibiotic which treats infection by killing the germs (bacteria) responsible for the infection.

Amoxicillin is sometimes used to get rid of Helicobacter pylori. This is an infection often found in people with stomach ulcers. If you are prescribed amoxicillin for this reason, you will also be prescribed other medicines to take alongside it.

Before taking amoxicillin

Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking amoxicillin it is important that your doctor knows:

  • If you suspect you may have glandular fever (the symptoms are high temperature (fever), sore throat, swollen glands).

  • If you have an allergic condition, or if you have ever had an allergic reaction to a medicine. This is especially important if you have ever had a bad reaction to any penicillin antibiotic for example trouble breathing.

  • If you have any problems with the way your kidneys work for example kidney disease.

  • If you are pregnant or breastfeeding. Amoxicillin is not known to be harmful to babies; however, it is still important that you tell your doctor if you are expecting or breastfeeding a baby.

  • Si vous prenez d'autres médicaments. Cela inclut tous les médicaments que vous prenez et qui sont disponibles sans ordonnance, ainsi que les médicaments à base de plantes et les médicaments complémentaires.

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How to take amoxicillin

  • Before you start the amoxicillin treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about amoxicillin and will provide you with a full list of the side-effects you may experience from taking amoxicillin.

  • Take amoxicillin exactly as your doctor tells you to. It is usually taken three times daily, every eight hours. Your dose will be different to this if you are being treated with sachets of amoxicillin powder, or if you are taking amoxicillin to treat a stomach ulcer. Your doctor or pharmacist will tell you how you should take the medication, and this information will be printed on the label of the pack to remind you. It is important that you space out the amoxicillin doses evenly during the day.

  • If you have been given liquid medicine for a child, read the directions carefully to make sure you measure out the correct amount of medicine.

  • You can take amoxicillin either with or without food. The amoxicillin capsules should be swallowed whole with a drink of water.

  • If you have been supplied amoxicillin oral powder sachets, stir the powder from the sachet into 10-20 ml of water. Drink the solution as soon as possible after mixing it.

  • If you forget to take a dose of amoxicillin at the correct time, take one as soon as you remember. Try to take the correct number of doses each day, leaving at least four hours between doses. Do not take two doses of amoxicillin at the same time to make up for a missed dose.

Tirer le meilleur parti de votre traitement

  • If you (or your child) have been prescribed the oral liquid amoxicillin medicine, you may find that it causes some staining of the teeth. Brushing the teeth regularly helps to prevent this. Any staining usually disappears soon after the course of antibiotics is finished.

  • Even if you feel your infection has cleared up, keep taking the antibiotic until the course is finished (unless a doctor tells you to stop). This is to prevent the infection from coming back.

  • Antibiotics are prescribed in short courses of treatment. Your doctor will tell you how long your course of treatment will last - this is not usually for longer than 14 days. If you still feel unwell after finishing the course, go back to see your doctor.

  • Some people develop redness and itching in the mouth or vagina (thrush) after taking a course of antibiotics. If this happens to you, speak with your doctor or pharmacist for advice.

  • If you are taking birth control like the contraceptive 'pill' at the same time as this antibiotic, the effectiveness of the 'pill' can be reduced if you have a bout of being sick (vomiting) or diarrhoea which lasts for more than 24 hours. If this should happen, ask your doctor or pharmacist for advice about what additional contraceptive precautions to use over the following few days. There is no need to use additional precautions for any bouts of sickness or diarrhoea which last for less than 24 hours.

  • Amoxicillin can stop the oral typhoid vaccine from working so if you are due to have any vaccinations, make sure the person treating you knows that you are taking this antibiotic.

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Can amoxicillin cause problems?

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with amoxicillin. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Common amoxicillin side-effects (these affect fewer than 1 in 10 people)

Que puis-je faire si je suis confronté à cette situation ?

Se sentir malade (nausées) ou être malade (vomissements)

Stick to simple foods. Try taking your doses of amoxicillin with something to eat if you are not already doing so

Diarrhée

Buvez beaucoup d'eau pour remplacer les liquides perdus. Si la diarrhée persiste, s'aggrave ou contient du sang, informez-en immédiatement votre médecin.

Redness and itching in the mouth or vagina (thrush)

Speak with a pharmacist or your doctor for advice about treatment

Éruption cutanée

Let your doctor know as soon as possible as your treatment will need to be changed

Important: if you develop an itchy rash, swollen face or mouth, or have difficulty breathing, these may be signs that you are allergic to a penicillin antibiotic. Do not take any more of this medicine and speak with your doctor or go to your local accident and emergency department straightaway.

If you experience any other symptoms which you think may be due to the antibiotic, call your doctor or pharmacist for further medical advice.

How to store amoxicillin

  • Conservez tous les médicaments hors de la portée et de la vue des enfants.

  • Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.

  • If you have been given liquid medicine, this will have been made up by the pharmacy and lasts for 14 days. Make sure you check the expiry date on the bottle and do not use it after this date.

Informations importantes sur tous les médicaments

Informations importantes sur tous les médicaments

Ne dépassez jamais la dose prescrite. Si vous pensez que vous ou quelqu'un d'autre avez pris une dose excessive de ce médicament, rendez-vous immédiatement au service des accidents et des urgences de votre hôpital local. Emportez la boîte avec vous, même si elle est vide.

Ce médicament est pour vous. Ne le donnez jamais à d'autres personnes, même si leur état semble être le même que le vôtre.

Si vous achetez des médicaments, vérifiez auprès d'un pharmacien qu'ils peuvent être pris en même temps que vos autres médicaments.

Si vous devez subir une opération ou un traitement dentaire, indiquez à la personne chargée du traitement les médicaments que vous prenez.

Ne gardez pas les médicaments périmés ou dont vous ne voulez plus. Apportez-les à votre pharmacie locale qui les éliminera pour vous.

Si vous avez des questions sur ce médicament, demandez à votre pharmacien.

Signaler les effets secondaires d'un médicament ou d'un vaccin

Si vous ressentez des effets secondaires, vous pouvez les signaler en ligne sur le site web de la carte jaune.

Autres lectures et références

Historique de l'article

Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.

  • Prochaine révision prévue : 10 mars 2028
  • 11 Mar 2025 | Dernière version

    Dernière mise à jour par

    Michael Stewart, MRPharmS

    Examiné par des pairs

    Sid Dajani
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