Erythromycin
Erythrocin, Erythroped
Revisione paritaria di Dr Colin Tidy, MRCGPUltimo aggiornamento di Michael Stewart, MRPharmSUltimo aggiornamento 21 Nov 2022
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Erythromycin is an antibiotic. It can be taken by people who are allergic to penicillin.
Space your doses out evenly over the day and complete the full course of this antibiotic, even if you feel your infection has cleared up.
The most common side effects of erythromycin are feeling sick (nausea) and tummy (abdominal) ache. These are usually mild and may be reduced by taking your doses after a meal or snack.
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About erythromycin
Tipo di medicinale | A macrolide antibiotic |
Utilizzato per | Infections (in adults and children), and for skin problems such as acne and rosacea |
Chiamato anche | Erythrocin® (as erythromycin stearate), Erythroped® (as erythromycin ethyl succinate) |
Disponibile come | Compresse e medicina liquida orale |
What is erythromycin used for?
Torna ai contenutiErythromycin is a type of antibiotico used to treat bacterial infections, such as chest infections, urine infections, skin infections, and mouth infections.
It is also prescribed for some longer-term skin conditions such as cicatrici da acne e rosacea.
Erythromycin works by killing the germs (bacteria) causing the infection.
Erythromycin is also available as an ingredient in some skin preparations used to treat acne - see the separate medicine leaflet called Erythromycin (with zinc) skin solution for acne for more information about this.
It can be taken by adults and children.
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Side effects of erythromycin
Torna ai contenutiCommon side effects of erythromycin are:
Sensazione di nausea.
Vomito.
Tummy discomfort.
Diarrea.
A full list in the manufacturer's information leaflet supplied with your medicine.
Side effects of erythromycin usually last a few days, but speak with your doctor or pharmacist if any of the following side effects continue or become troublesome.
How to manage erythromycin side effects
Torna ai contenutiCommon erythromycin side effects | Cosa posso fare se sperimento questo? |
Feeling sick or being sick, tummy discomfort | Stick to simple meals - avoid rich or spicy food. Taking your doses after food may help |
Diarrea | Drink plenty of water to replace lost fluids. If the diarrhoea continues or is severe, speak with your doctor |
Importante: On rare occasions treatment with erythromycin could cause an allergic reaction such as an itchy rash, swelling of the face or mouth, and breathing difficulties. If you experience any of these symptoms, stop taking erythromycin and contact your doctor for advice.
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 erythromycin?
Torna ai contenutiSome medicines may not be safe for certain conditions or may need extra care. Before taking erythromycin, make sure your doctor or pharmacist knows:
Se sei incinta o stai allattando.
If you have any problems with your liver or kidneys.
If you know you have an unusual heart rhythm or you have any other heart or blood vessel problems.
If you have been told you have low levels of potassium or magnesium in your blood.
If you have a muscle disorder called myasthenia gravis.
Se hai un raro disturbo ereditario del sangue chiamato porfiria.
Se stai assumendo altri medicinali. Questo include qualsiasi medicinale che stai assumendo e che è disponibile per l'acquisto senza prescrizione medica, così come i medicinali a base di erbe e complementari.
Se hai mai avuto una reazione allergica a un medicinale.
How to take erythromycin
Torna ai contenutiRead the leaflet in the pack before starting erythromycin. It explains how to take it and lists possible side effects.
Take erythromycin exactly as your doctor tells you to and always check the label for the correct dose.
It is usually four times daily, although one or two doses daily may be sufficient for some conditions.
Your doctor or pharmacist will tell you the right dose, which is also on the pack label. Take the doses evenly throughout the day.
Swallow tablets whole, with a drink of water. Do not chew them. You may take erythromycin before or after food.
When erythromycin is prescribed for a child, the dose depends upon the child's weight. Make sure you read the label carefully so that you measure out the correct amount of medicine.
Keep taking erythromycin until the course is finished, even if you feel better, unless your doctor says otherwise.
Short-term infections usually take 5–14 days, while chronic conditions like prostatitis, acne, or rosacea may require several weeks or months of treatment.
If you still feel unwell after finishing your course of treatment, make another appointment to see your doctor for further advice.
If you forget to take a dose, take one as soon as you remember. Try to take the correct number of doses each day, but do not take two doses at the same time to make up for a forgotten one.
Ottenere il massimo dal tuo trattamento
Torna ai contenutiCheck with a pharmacist before taking other medicines with erythromycin. Some antacids may not be safe - tell your doctor if you use them.
Thrush (orale o vaginale) can happen after antibiotics - see your doctor or pharmacist if it occurs.
If you take the oral contraceptive pill, extra contraception isn’t usually needed unless you have sickness or diarrhoea.
Tell your doctor if you’re having any vaccinations, especially the oral typhoid vaccine, as erythromycin may stop it from working.
How to store erythromycin
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. Store it in the fridge.
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 immediatamente 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 erythromycin to work?
Erythromycin usually starts to improve symptoms within 2-3 days for most infections. Full recovery can take 1-2 weeks, depending on the type and severity of the infection.
Is erythromycin a penicillin?
No, erythromycin is not a penicillin. It is a macrolide antibiotic, which works differently and is often used as an alternative for people allergic to penicillin.
Is it safe to take erythromycin during pregnancy?
Erythromycin is generally considered safe during pregnancy when prescribed by a doctor. Your healthcare provider will choose the appropriate form and dose to treat the infection effectively.
Can you drink alcohol with erythromycin?
It’s best to avoid alcohol while taking erythromycin, as it can increase the risk of side effects like stomach upset or dizziness. Alcohol doesn’t stop the antibiotic from working, but limiting intake helps you feel better.
Can you take paracetamol with erythromycin?
Yes, paracetamol can be safely taken with erythromycin. There are no known interactions, so it can help relieve pain or fever while you’re on the antibiotic.

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Ulteriori letture e riferimenti
- Manufacturer's PIL, Erythromycin 250 mg Gastro-resistant Tablets; Brown & Burk UK Ltd, The electronic Medicines Compendium. Dated May 2022.
- Manufacturer's PIL, Erythromycin ethyl succinate Granules for Oral Suspension 250 mg/5 ml; Pinewood Healthcare, The electronic Medicines Compendium. Dated April 2022.
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Storia dell'articolo
Le informazioni su questa pagina sono scritte e revisionate da clinici qualificati.
Prossima revisione prevista: 20 maggio 2027
21 nov 2022 | Ultima versione

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