Clarithromycin for infection
Xetinin XL
Revisione paritaria di Dr Colin Tidy, MRCGPUltimo aggiornamento di Michael Stewart, MRPharmSUltimo aggiornamento 29 maggio 2023
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Clarithromycin is a macrolide antibiotic. It can be taken by people who are allergic to penicillin.
It is important to complete the prescribed course (unless you are told to stop). Otherwise your infection could come back.
The most common side effects of clarithromycin are diarrhoea, feeling sick (nausea), tummy (abdominal) discomfort, and unusual tastes.
In questo articolo:
About clarithromycin
Tipo di medicinale | A macrolide antibiotic |
Utilizzato per | Bacterial infections including chest, skin, and ear infections Some types of stomach ulcers |
Chiamato anche | Xetinin XL® |
Disponibile come | Tablets, ,modified-release tablets and oral liquid medicine |
What is clarithromycin used for?
Torna ai contenutiClarithromycin is a type of antibiotic used to treat bacterial infections such as respiratory infections, infezioni dell'orecchio and skin infections.
Clarithromycin is also given to get rid of Helicobacter pylori. This is the bacterium believed to cause ulcere gastriche. If you are prescribed it for this reason, you will also be prescribed other medicines to take alongside it.
It works by stopping the bacteria causing the infection from multiplying.
Clarithromycin can be taken by adults and children.
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Side effects of clarithromycin
Torna ai contenutiCommon side effects of clarithromycin are:
Sensazione di nausea.
Vomito.
Stomach ache.
Farting (wind).
Indigestion.
Diarrea.
Changes to taste and smell.
Sore mouth.
Mal di testa.
Troverai un elenco completo nel foglietto informativo del produttore fornito con il tuo medicinale.
Gli effetti indesiderati spesso migliorano man mano che il tuo corpo si adatta al nuovo medicinale, ma parla con il tuo medico o farmacista se uno dei seguenti persiste o diventa problematico.
How to manage clarithromycin side effects
Torna ai contenutiCommon clarithromycin side effects (these affect fewer than 1 in 10 people) | Cosa posso fare se sperimento questo? |
Feeling sick or being sick, stomach ache, farting, indigestion | Stick to simple meals - avoid rich or spicy food |
Diarrea | Drink plenty of water to replace lost fluids. If the diarrhoea continues or is severe, speak with your doctor as soon as possible |
Tooth or tongue discolouration, and changes in the way things taste or smell | This will disappear after you finish your treatment |
Sore mouth | Speak with your doctor if this becomes a problem |
Mal di testa | Chiedi al tuo farmacista di consigliare un antidolorifico adatto |
Se si verificano altri sintomi che ritieni possano essere dovuti a questo medicinale, parla con il tuo medico o farmacista.
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Who should not take clarithromycin?
Torna ai contenutiSome medicines are not suitable for people with certain conditions. Before starting clarithromycin it is important that your doctor or pharmacist knows:
Se sei incinta o stai allattando.
If you have any problems with the way your liver works or the way your kidneys work.
If you know you have an unusual heart rhythm.
If you have a muscle disorder called myasthenia gravis.
If you are taking any other medicines. In particular, if you are taking a 'statin' medicine for high cholesterol or colchicine for gout as well as herbal and complementary medicines.
Se hai mai avuto una reazione allergica a un medicinale.
How to take clarithromycin
Torna ai contenutiRead the leaflet in the pack before starting clarithromycin. It explains how to take it and lists possible side effects.
Take exactly as your doctor tells you to and always check the label for the correct dose.
It is usually taken twice a day, in the morning and evening.
If you’re given a modified-release (XL) tablet, you only need to take one dose a day as it releases the medicine slowly throughout the day.
Standard tablets, liquid, and sachets can be taken before or after food. Modified-release (XL) tablets should be taken after food. Swallow whole, don’t chew or break them.
When clarithromycin is prescribed for a child, the dose will depend upon the child's weight. Make sure you read the label carefully so that you measure out the correct amount of medicine.
If you have been given clarithromycin sachets to take, open the sachet and mix the granules into a small glass of water before taking.
If you forget to take a dose, take one as soon as you remember. Do not take two doses at the same time to make up for a forgotten one.
Treatment usually lasts 5-14 days. Keep taking the antibiotic until you finish the course, even if you feel better, unless your doctor says otherwise. This helps stop the infection from coming back.
Ottenere il massimo dal tuo trattamento
Torna ai contenutiAlcune persone sviluppano il mughetto (orale o vaginale) after taking a course of antibiotics. If this happens to you, speak with your doctor or pharmacist for advice about how to treat it.
This antibiotic may stop the oral typhoid vaccine from working. If you are having any vaccinations, make sure the person treating you knows that you are taking this medicine.
If you are taking a 'statin' medicine for high cholesterol your doctor may advise you to stop taking the statin whilst being treated with clarithromycin. Ask your doctor or pharmacist if you are unsure.
Clarithromycin usually doesn’t affect the contraceptive pill, but diarrhoea, vomiting, or breakthrough bleeding may reduce its effectiveness. Ask your doctor or pharmacist for advice if this happens.
If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking clarithromycin.
If you buy any medicines, check with a pharmacist that they are suitable to take with this antibiotic.
If you still feel unwell after completing your course of the antibiotic, make another appointment to see your doctor.
How to store clarithromycin
Torna ai contenutiTenere tutti i medicinali fuori dalla portata e dalla vista dei bambini.
Conservare in un luogo fresco e asciutto, lontano da fonti di calore e luce diretta.
If you have been given liquid medicine, it will have been made up by the pharmacy and it lasts for a limited number of days only. Check the expiry date on the bottle and do not use it after this date.
Informazioni importanti su tutti i medicinali
Torna ai contenutiInformazioni importanti su tutti i medicinali
Non assumere mai più della dose prescritta. Se sospetti che tu o qualcun altro possa aver assunto un sovradosaggio di questo medicinale, recati al pronto soccorso del tuo ospedale locale. Porta con te il contenitore, anche se è vuoto.
Questo medicinale è per te. Non darlo mai ad altre persone, anche se la loro condizione sembra essere la stessa della tua.
Se devi sottoporti a un'operazione o a un trattamento dentale, informa la persona che esegue il trattamento sui medicinali che stai assumendo.
Non conservare medicinali scaduti o indesiderati. Portali alla tua farmacia locale che li smaltirà per te.
Se hai domande su questo medicinale, chiedi al tuo farmacista.
Segnala effetti collaterali di un medicinale o vaccino
Se si verificano effetti collaterali, è possibile segnalarli online tramite il sito web Yellow Card.
Domande frequenti
Torna ai contenutiHow long does it take for clarithromycin to work?
Clarithromycin usually starts to improve symptoms within 2-3 days. Full recovery can take 7-14 days, depending on the type and severity of the infection.
Is clarithromycin safe to take during pregnancy?
Clarithromycin is generally not recommended during pregnancy, especially in the first trimester. Your doctor may prescribe a safer alternative antibiotic if needed.
Can you drink alcohol with clarithromycin?
It’s best to avoid alcohol while taking clarithromycin, as it can increase the risk of side effects like nausea, stomach upset, or dizziness. Limiting alcohol helps the medication work more effectively and keeps you comfortable.
What should you avoid when taking clarithromycin?
You should avoid alcohol and certain medications that can interact with clarithromycin, including some statins and heart medicines. Always check with your doctor or pharmacist before taking new medicines or supplements.
Video consigliati per Medicinali per il trattamento delle infezioni

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Ulteriori letture e riferimenti
- Manufacturer's PIL, Clarithromycin 250 mg & 500 mg Tablets; Aurobindo Pharma - Milpharm Ltd, The electronic Medicines Compendium. Dated July 2021.
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Storia dell'articolo
Le informazioni su questa pagina sono scritte e revisionate da clinici qualificati.
Prossima revisione prevista: 28 maggio 2026
29 maggio 2023 | Ultima versione

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