Flucloxacillin bei Infektionen
Begutachtet von Dr Colin Tidy, MRCGPZuletzt aktualisiert von Michael Stewart, MRPharmSZuletzt aktualisiert 27. Apr 2023
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Flucloxacillin is a type of penicillin - do not take it if you are allergic to penicillin. Make sure you tell your doctor if you are allergic to penicillin.
Take when your stomach is empty. This means you should take your doses an hour before meals or two hours after a meal. Space your doses out evenly over the day and complete the full course of antibiotic.
Common side effects include nausea, vomiting, and diarrhoea.
If you have an allergic reaction (such as any swelling around your mouth, any difficulties breathing or a red rash) contact a doctor straightaway.
Auf einen Blick
Flucloxacillin is an antibiotic used to treat bacterial infections like skin, bone, or heart infections.
Common side effects include feeling sick, being sick, diarrhoea, and skin rash.
Take flucloxacillin on an empty stomach, about an hour before a meal or two hours after.
Complete the full course of antibiotics, even if you feel better.
Tell your doctor if you are pregnant, breastfeeding, have liver or kidney problems, or have allergies.
Wenn Sie einen juckenden Ausschlag, ein geschwollenes Gesicht oder Atembeschwerden entwickeln, suchen Sie dringend medizinische Hilfe auf.
About flucloxacillin
Art des Medikaments | Penicillin antibiotic |
Verwendet für | Bacterial infections (adults and children) |
Auch genannt | Floxacillin (in US) |
Verfügbar als | Capsules, oral liquid medicine and injections |
What is flucloxacillin used for?
Flucloxacillin is a type of penicillin antibiotic used to treat bacterial infections such as Ohreninfektionen, skin infections, bone infections, and heart and Brustinfektionen. It works by killing the bacteria causing the infection.
Flucloxacillin is also used before some surgical operations to prevent an infection from developing.
Flucloxacillin is available in combination with another antibiotic in a medicine called co-fluampicil. For information on this medicine read our leaflet Co-fluampicil gegen Infektionen.
Flucloxacillin side effects
The most common side effects of flucloxacillin are:
Übelkeit.
Erbrechen.
Durchfall.
Hautausschlag.
Eine vollständige Liste finden Sie im Beipackzettel des Herstellers, der Ihrem Medikament beiliegt.
Die unerwünschten Wirkungen bessern sich oft, wenn sich Ihr Körper an das neue Medikament gewöhnt, aber sprechen Sie mit Ihrem Arzt oder Apotheker, wenn eines der folgenden Probleme weiterhin besteht oder störend wird.
How to manage flucloxacillin side effects
Common flucloxacillin side effects - these affect fewer than 1 in 10 people | Was kann ich tun, wenn ich das erlebe? |
Sich krank fühlen oder krank sein | Bleiben Sie bei einfachen Lebensmitteln |
Durchfall | Drink plenty of water to replace any lost fluids. If the diarrhoea continues, becomes severe, or contains blood, let your doctor know sofort |
Hautausschlag | Informieren Sie Ihren Arzt so bald wie möglich, da Ihre Behandlung möglicherweise angepasst werden muss |
Wichtig: if you develop an itchy rash, or a 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 flucloxacillin 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 medicine, speak with your doctor, pharmacist or health professional.
Who should not take flucloxacillin
Some medicines are not suitable for people with certain conditions. Before starting flucloxacillin it is important that your doctor or pharmacist knows:
If you are pregnant or breastfeeding. (Although flucloxacillin is not known to be harmful to babies, it is still important that you tell your doctor if you are expecting or breastfeeding a baby.)
Wenn Sie Probleme mit der Funktion Ihrer Leber haben.
If you have kidney problems.
Wenn Sie andere Medikamente einnehmen. Dazu gehören alle Medikamente, die Sie einnehmen und die ohne Rezept erhältlich sind, sowie pflanzliche und ergänzende Medikamente.
If you have an allergic condition, or if you have ever had an allergic reaction to a medicine. This is particularly important if you have ever had a bad reaction to any penicillin antibiotic.
How to take flucloxacillin
Before you start this antibiotic, read the manufacturer's printed information leaflet from inside the pack. The leaflet will give you more information about flucloxacillin and a full list of side effects which you may experience from taking it.
Take your dose of flucloxacillin exactly as your doctor tells you to. It is taken four times a day Your doctor or pharmacist will tell you how many capsules (or how much liquid medicine) to take for each dose, and this information will be printed on the label of the pack to remind you.
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 should take flucloxacillin 'on an empty stomach', which means you should take it about an hour before a meal, for example midday before lunch or in the morning before breakfast, or wait until two hours afterwards.
This is because your body absorbs less flucloxacillin after a meal, which means the medicine is less effective. Space the doses out evenly during the day.
Swallow the capsules whole - do not chew or open them. Some people find it helps to swallow the capsules with a drink of water.
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.
Even if you feel your infection has cleared up, keep taking the antibiotic until the course is finished, unless you are told to stop. This is to prevent the infection from coming back.
Your doctor will tell you how long your course of treatment will last. If you still feel unwell after finishing the course, go back to see your doctor.
Das Beste aus Ihrer Behandlung herausholen
Some people develop thrush (redness and itching in the mouth or vagina) after taking a course of antibiotics. If you think you have thrush speak with your doctor or pharmacist for advice.
If you are using oral combined hormonal contraception (the 'pill'), additional contraceptive precautions such as condoms are recommended for a time if you have sickness (vomiting) or diarrhoea which lasts for more than 24 hours. If you need further advice about this, speak with your doctor or pharmacist.
If you need pain relief whilst taking flucloxacillin it is best to speak to your doctor or a pharmacist first. The painkiller paracetamol is not always recommended during treatment with flucloxacillin, especially if you also have problems with the way your kidneys work.
If you are having an operation or any other medical treatment, tell the person carrying out the treatment that you are taking an antibiotic.
Flucloxacillin 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 antibiotic.
If you are taking flucloxacillin over an extended period of time, your doctor will want to routinely check on your progress. Try to keep any regular appointments you have booked with your doctor, as you will need to have some blood tests to check that your liver and kidneys are working well.
How to store flucloxacillin
Bewahren Sie alle Medikamente außerhalb der Reichweite und Sicht von Kindern auf.
Store flucloxacillin capsules in a cool, dry place, away from direct heat and light.
If you have been given liquid medicine, store it in a refrigerator. It will have been made up by the pharmacy and lasts for seven days, so check the expiry date on the bottle and do not use it after this date.
Wichtige Informationen über alle Medikamente
Wichtige Informationen über alle Medikamente
Nehmen Sie niemals mehr als die vorgeschriebene Dosis ein. Wenn Sie vermuten, dass Sie oder jemand anderes eine Überdosis dieses Medikaments eingenommen haben könnte, gehen Sie in die Notaufnahme Ihres örtlichen Krankenhauses. Nehmen Sie den Behälter mit, auch wenn er leer ist.
Dieses Medikament ist für Sie. Geben Sie es niemals an andere Personen weiter, auch wenn deren Zustand ähnlich erscheint wie Ihrer.
Wenn Sie Medikamente kaufen, fragen Sie einen Apotheker, ob sie sicher mit Ihren anderen Medikamenten eingenommen werden können.
Wenn Sie sich einer Operation oder einer zahnärztlichen Behandlung unterziehen, informieren Sie die Person, die die Behandlung durchführt, über die Medikamente, die Sie einnehmen.
Bewahren Sie keine abgelaufenen oder unerwünschten Medikamente auf. Bringen Sie sie zu Ihrer örtlichen Apotheke, die sie für Sie entsorgt.
Wenn Sie Fragen zu diesem Medikament haben, fragen Sie Ihren Apotheker.
Berichten Sie Nebenwirkungen eines Medikaments oder Impfstoffs
Wenn Sie Nebenwirkungen bemerken, können Sie diese online über die Yellow Card Webseite.
Häufig gestellte Fragen
Is flucloxacillin good for ear infections?
Flucloxacillin is not usually the first choice for most ear infections. It mainly targets bacteria that cause skin and soft tissue infections, rather than the more common bacteria linked to middle ear infections.
Is flucloxacillin stronger than penicillin?
Flucloxacillin and penicillin are not stronger or weaker versions of each other, but different antibiotics used for different types of infections.
Will flucloxacillin affect my contraception?
Flucloxacillin does not affect most forms of contraception, including the combined pill and the progestogen-only pill. However, if the antibiotic causes vomiting or diarrhoea for more than 24 hours, your pill may not be absorbed properly. In that case, follow your pill’s guidance for missed pills and consider using extra protection until you’re well again.
Can I drive on flucloxacillin?
Yes, most people can drive while taking flucloxacillin, as it does not usually cause drowsiness. However, if you feel unwell, dizzy or light-headed from either the medicine or the infection itself, it is safer to avoid driving until you feel better.
Can I drink alcohol on flucloxacillin?
Yes, you can drink alcohol while taking flucloxacillin, as alcohol does not usually interfere with how the medicine works. However, it is best to drink in moderation, as alcohol can make you feel more tired or unwell when you are recovering from an infection
Is there any food or drink I need to avoid when taking flucloxacillin?
No, there are no specific foods or drinks you need to avoid while taking flucloxacillin. However, it is best to take the medicine on an empty stomach, either one hour before or two hours after eating, as food can reduce how well it is absorbed. Drinking plenty of fluids can also help your recovery.

Unsicher beim Mischen von Medikamenten?
Überprüfen Sie mögliche Wechselwirkungen zwischen Medikamenten, Nahrungsergänzungsmitteln und Lebensmitteln, bevor Sie sie zusammen einnehmen.
Häufig gestellte Fragen
Does flucloxacillin make you tired or sleepy?
Flucloxacillin does not usually cause drowsiness, so for most people, it would not make them feel tired or sleepy. However, if you feel unwell or dizzy from the medicine or the infection you are being treated for, it's safer to rest.
Can flucloxacillin cause thrush?
Yes, some people do develop thrush, which can manifest as redness and itching in the mouth or vagina, after taking a course of antibiotics like flucloxacillin. If you experience these symptoms, it's advisable to speak with your doctor or pharmacist for advice.
How should I space out flucloxacillin doses if I need to take it four times a day?
When taking flucloxacillin four times a day, try to space the doses out evenly throughout the day. Your doctor or pharmacist will provide specific instructions on the exact timing for your doses, which will also be printed on the medicine label.
How long after taking flucloxacillin can I take paracetamol?
If you need pain relief while taking flucloxacillin, it's best to speak to your doctor or a pharmacist first. Paracetamol is not always recommended during flucloxacillin treatment, especially if you have kidney problems.
How much liquid flucloxacillin should a child take?
If a child has been given liquid flucloxacillin, it is crucial to read the directions carefully to measure out the correct amount of medicine. Your pharmacist or doctor will provide specific dosage instructions.
Is flucloxacillin 500mg a strong antibiotic?
Flucloxacillin is an antibiotic used to treat bacterial infections. The strength of an antibiotic dose, such as 500mg, is determined by your doctor based on the infection and your individual needs. It's effective against specific types of bacteria.
Weiterführende Literatur und Referenzen
- Manufacturer's PIL, Flucloxacillin 125 mg/ 5 ml Oral Solution; Aurobindo Pharma - Milpharm Ltd, The electronic Medicines Compendium. Dated February 2022.
- Manufacturer's PIL, Flucloxacillin 250 mg and 500 mg capsules; Aurobindo Pharma - Milpharm Ltd, The electronic Medicines Compendium. Dated January 2021.
Über den AutorVollständige Biografie anzeigen

Michael Stewart, MRPharmS
Manager für die Überprüfung von Beipackzetteln – Auftragnehmer, Apotheker
BPharm (Hons), MRPharmS
Michael ist ein Gemeindapotheker, der in den Midlands und South Yorkshire praktiziert und über mehr als 20 Jahre Erfahrung in der Beratung zu Medikamenten und medizinischen Bedingungen verfügt. Er hat einen starken Hintergrund in der Gesundheitsausbildung, da er Schulungskurse für Apothekenteams und Mitarbeiter von Pflegeeinrichtungen, einschließlich Krankenschwestern, erstellt und durchgeführt hat. Er hat auch zu Apothekenbeiräten für das Management von geringfügigen Erkrankungen in der Gemeinschaft beigetragen.
Über den RezensentenVollständige Biografie anzeigen

Dr Colin Tidy, MRCGP
Allgemeinmediziner, Medizinischer Autor
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr. Colin Tidy ist ein NHS-Arzt mit Sitz in Oxfordshire.
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Next review due: 26 Oct 2027
27. Apr 2023 | Neueste Version

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