Posaconazole for fungal infections
Noxafil
Revu par Sid DajaniDernière mise à jour par Michael Stewart, MRPharmSLast updated 19 juil. 2023
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Posaconazole treats fungal infections within your body.
If you have been supplied with tablets, you can take your doses before or after meals. If you have been supplied with liquid medicine, try to take each dose with a snack or straight after a meal.
If you start being sick (vomiting) or develop diarrhoea, let your doctor know.
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About posaconazole
Type de médicament | Antifungal |
Utilisé pour | Infections fongiques |
Aussi appelé | Noxafil® |
Disponible sous forme de | Comprimés et médicaments liquides oraux |
Fungal infections within the body sometimes occur. You are more at risk of developing an internal fungal infection if your immune system does not work properly. For example, if you are taking la chimiothérapie, or if your immune system is being suppressed following an organ or cell transplant. Internal fungal infections can be serious and, sometimes, life-threatening.
Posaconazole is used to treat (or prevent) serious fungal infections, particularly when other antifungal medicines have not been effective or are not suitable. It works by stopping the growth of the fungi causing the infection.
Before taking posaconazole
Retour au sommaireSome medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking posaconazole it is important that your doctor knows:
Si vous êtes enceinte ou si vous allaitez.
If you have liver problems.
If you have any heart or heart rhythm problems.
Si vous avez la porphyrie, une maladie sanguine héréditaire rare.
Si vous avez déjà eu une réaction allergique à un médicament.
If you are taking or using any other medicines. This includes any medicines you are taking which are available to buy without a prescription, as well as herbal and complementary medicines. This is because a number of medicines can interfere with the way posaconazole works.
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How to take posaconazole
Retour au sommaireBefore you start this treatment, read the manufacturer's printed information leaflet from inside your pack. It will give you more information about posaconazole and will provide you with a full list of side-effects which you may experience from taking it.
Take posaconazole exactly as your doctor tells you to. How frequently you will need to take it will depend upon why you are taking it, but as a guide, it will range from once a day to four times daily if you are taking liquid medicine. If you are taking tablets, it is likely you will be prescribed 300 mg (three tablets) to take twice daily on the first day, and then 300 mg (three tablets) to take once a day on the following days.
The tablets can be taken either before or after meals. Swallow the tablets with a drink of water. Do not crush or break the tablets - they should be swallowed whole.
The liquid medicine should be taken during, or straight after, a meal or snack where possible as this will help your body to absorb the medicine. If you are unable to eat much, make sure your doctor knows this, as you may be better taking smaller doses more frequently. Use the spoon included in your pack to measure out your doses. It is marked for doses of 2.5 ml and 5 ml.
Space your doses evenly throughout the day, and keep taking this medicine until your course is finished unless you are told otherwise. This is to make sure there is no chance of further infection.
If you forget to take a dose, take it as soon as you remember. However, if when you remember, it is nearly time for your next dose, leave out the forgotten dose. Do not take two doses together to make up for a missed dose.
Tirer le meilleur parti de votre traitement
Retour au sommaireRemember to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor will want to do some blood tests during this treatment, to check that your liver is working properly.
If you buy any medicines, check with a pharmacist that they are suitable to take with posaconazole. This is because several medicines interfere with it and may either decrease how well it works or increase the risk you may experience side-effects.
You must not get pregnant while you are taking posaconazole. Make sure you have discussed with your doctor which types of contraception are suitable for you and your partner if this is relevant for you.
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Can posaconazole cause problems?
Retour au sommaireAlong 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 posaconazole. 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 posaconazole side-effects (these affect around 1 in 10 people) | Que puis-je faire si je ressens cela ? |
Se sentir malade (nausée) ou être malade (vomissements) | If this is severe, let your doctor know straightaway |
Diarrhée | Drink plenty of water to replace lost fluids. If it continues or is severe, let your doctor know straightaway |
Tummy (abdominal) pain, indigestion, lack of appetite | Stick to simple foods - avoid spicy meals |
Se sentir somnolent ou étourdi | Rest whenever you can. Do not use tools or machines, and do not drive |
Bouche sèche | Essayez de mâcher du chewing-gum sans sucre ou de sucer des bonbons sans sucre |
Headache, itchy rash, tingling feelings, high temperature (fever), infection | Si l'un d'eux devient gênant, informez-en votre médecin |
Feeling confused or weak (due to abnormal levels of electrolytes in your blood) | Your doctor will be monitoring your blood for this |
Si vous ressentez d'autres symptômes que vous pensez être dus au médicament, parlez-en à votre médecin ou à votre pharmacien.
How to store posaconazole
Retour au sommaireGardez 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.
The liquid medicine keeps for four weeks once the bottle has been opened. Do not use it after this time.
Informations importantes sur tous les médicaments
Retour au sommaireInformations importantes sur tous les médicaments
Ne jamais dépasser la dose prescrite. Si vous pensez que vous ou quelqu'un d'autre avez pris une overdose de ce médicament, rendez-vous immédiatement au service des urgences de l'hôpital le plus proche. Apportez le contenant avec vous, même s'il 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.
Ne gardez pas de médicaments périmés ou indésirables. Apportez-les à votre pharmacie locale qui s'en débarrassera pour vous.
Si vous avez des questions concernant 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 via le Yellow Card website.

Vous n'êtes pas sûr de mélanger des médicaments ?
Vérifiez les interactions possibles entre les médicaments, les compléments et les aliments avant de les prendre ensemble.
Lectures complémentaires et références
- Manufacturer's PIL, Noxafil® 40 mg/ml oral suspension; Merck Sharp & Dohme Limited, The electronic Medicines Compendium. Dated June 2023.
- Manufacturer's PIL, Noxafil® 100 mg Gastro-resistant Tablets; Merck Sharp & Dohme Limited, The electronic Medicines Compendium. Dated June 2023.
- Médicaments Complets BNF 89e Édition; Association Médicale Britannique et Société Royale Pharmaceutique de Grande-Bretagne, Londres.
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About the author

Michael Stewart, MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewer

Sid Dajani
Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Prochaine révision prévue : 18 juil. 2026
19 juil. 2023 | Dernière version

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