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Ethambutol pour la tuberculose

Ethambutol is one of several medicines you will need to take to treat tuberculosis (TB).

It is important that you take your doses regularly.

If you develop any problems with your eyesight, you must let your doctor know about this straightaway.

At a glance

  • Ethambutol is a medicine used to treat tuberculosis (TB).

  • It is one of several medicines taken for the first two months of TB treatment.

  • Take your tablets exactly as your doctor tells you, either daily or three times a week.

  • You can take ethambutol with or without food.

  • Contact your doctor straight away if you have eyesight problems while taking this medicine.

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About ethambutol for tuberculosis

Type de médicament

An antituberculosis medicine

Utilisé pour

Tuberculose (TB)

Aussi appelé

Ethambutol hydrochloride

Disponible sous forme de

Comprimés

Ethambutol is used to treat la tuberculose (TB). TB is a bacterial infection which is mostly found in the lungs but which can affect any part of your body. TB is treatable with a course of medicines which need to be taken for six months. You will need to take several medicines to treat TB - ethambutol is one of the medicines prescribed during the first two months of the treatment.

Ethambutol will be prescribed for you by a doctor who specialises in the treatment of TB. It is important that you take it regularly.

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 ethambutol, it is important that your doctor knows:

  • If you are pregnant or breastfeeding. (Although ethambutol 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.)

  • If you have any problems with your eyesight.

  • Si vous avez des problèmes avec le fonctionnement de vos reins.

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

  • Si vous avez déjà eu une réaction allergique à un médicament.

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

  • Ethambutol will be prescribed for you in one of two ways - you will either be asked to take one dose every day, ou, one dose three times a week. Your doctor will tell you which way is right for you. If you are asked to take one dose three times a week, you will be supervised while you take the doses. This is called directly observed therapy (DOT).

  • If you are taking ethambutol every day, try to take your doses at the same time of day each day, as this will help you to remember to take ethambutol regularly. Your doctor will tell you how many tablets to take for each dose, as this will be individually tailored to suit you and depends upon your weight. It is important that you take ethambutol exactly as you are told. You can take the tablets either with or without food. If you forget to take a dose at your usual time, take it as soon as you remember, but do not take two doses on the same day to make up for a missed dose.

  • It is important that you keep your regular clinic appointments with your doctor. This is so your doctor can check on your progress. Your doctor may want you to have blood tests from time to time during the treatment to make sure you have just the right amount of the medicine in your bloodstream.

  • Continue to take the tablets regularly - do not stop taking ethambutol unless your doctor tells you to stop. This is because it is important for you to complete the course of medicine so that the infection does not come back. Your treatment with ethambutol will last for two months (unless you develop troublesome side-effects).

  • Ethambutol can stop the oral typhoid vaccine from working properly. If you are due to have any vaccinations, make sure that the person treating you knows you are taking this medicine. Also, if you are due to have an operation or any dental treatment, you should tell the person carrying out the treatment that you are taking medicines for TB.

  • If you buy any medicines 'over the counter', check with a pharmacist that they are suitable for you to take alongside your prescribed medicines. Antacid remedies for indigestion which contain aluminium hydroxide are not suitable while you are taking ethambutol.

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Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with ethambutol. You will find a full list of side-effects in the manufacturer's information leaflet supplied with the medicine. If you experience any other symptoms which you think may be due to the tablets, please speak with your doctor or pharmacist for further advice.

Ethambutol side-effects

Que puis-je faire si je ressens cela ?

Eyesight problems such as colour blindness, blurred vision, poor vision, some loss of vision

Contact your doctor immédiatement. Your doctor will want to review your treatment, as you will need to stop taking ethambutol

  • Gardez 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.

Informations 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.

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Questions fréquemment posées

Why do I need to take several medicines for TB, and what is ethambutol's role?

You need to take several medicines to treat TB. Ethambutol is one of the medicines you will take during the first two months of your treatment. TB is a bacterial infection, mostly found in the lungs but can affect any part of your body. It is treatable with a course of medicines that needs to be taken for six months.

What should I do if I forget to take a dose of ethambutol?

If you forget to take a dose at your usual time, take it as soon as you remember. However, you should not take two doses on the same day to make up for a missed dose.

Can I take ethambutol with other medications or supplements?

It is important to inform your doctor about all other medicines you are taking, including those bought without a prescription, as well as herbal and complementary medicines. Also, if you buy any 'over the counter' medicines, check with a pharmacist to ensure they are suitable to take alongside your prescribed ethambutol. Specifically, antacid remedies for indigestion that contain aluminium hydroxide are not suitable while you are taking ethambutol.

How long will I need to take ethambutol, and why is it important to complete the course?

Your treatment with ethambutol will last for two months, unless you develop troublesome side-effects. It is very important that you continue to take the tablets regularly and complete the full course of medicine, as stopping early could cause the infection to come back.

What does 'directly observed therapy (DOT)' mean, and why might I need it?

Directly observed therapy (DOT) means you will be supervised while you take your doses. This typically occurs if your doctor asks you to take ethambutol one dose three times a week. This method helps ensure you take your medication correctly and regularly.

Will I have any tests while taking ethambutol?

Yes, you will need to keep your regular clinic appointments with your doctor so they can check on your progress. Your doctor may also want you to have blood tests from time to time during the treatment to ensure you have the correct amount of medicine in your bloodstream.

What should I do if I experience eyesight problems while on ethambutol?

If you experience any eyesight problems, such as colour blindness, blurred vision, poor vision, or some loss of vision, you should contact your doctor straight away. Your doctor will need to review your treatment, as you will need to stop taking ethambutol.

Lectures complémentaires et références

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About the authorView full bio

Author image

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

Author image

Sid Dajani

Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.

Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.

  • Prochaine révision prévue : 7 juin 2028
  • 7 juin 2025 | Dernière version

    Dernière mise à jour par

    Michael Stewart, MRPharmS

    Revu par

    Sid Dajani
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