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Enalapril - un inhibiteur de l'ECA

Innovace, Innozide

The first dose of enalapril can make you feel dizzy. It is best taken at bedtime.

Enalapril is generally well tolerated but if you develop a troublesome cough, you must let your doctor know.


Some painkillers and indigestion remedies can interfere with enalapril. Ask your pharmacist for advice before you buy any medicines 'over the counter'.


Clinical author's note: Michael Stewart 15/11/2018: Following an MHRA update, new advice has been added to this leaflet for people also taking the blood pressure medicine hydrochlorothiazide. Hydrochlorothiazide is only available in the UK in combination with other blood pressure medicines such as enalapril. It may be available on its own in other countries. For more information see 'Getting the most from your treatment' below or view the Alerte MHRA.

En un coup d'œil

  • Enalapril is a medicine used to treat high blood pressure and heart failure.

  • It works by widening blood vessels and reducing fluid in the blood.

  • Take your tablets exactly as your doctor tells you, usually once or twice a day.

  • A common side-effect is a dry, irritating cough.

  • Seek immediate medical help if you have difficulty breathing, or swelling of your face, mouth, tongue or throat.

About enalapril

Type de médicament

An angiotensin-converting enzyme (ACE) inhibitor

Utilisé pour

High blood pressure; heart failure

Aussi appelé

Innovace®;

Combination brands: Innozide® (contains enalapril with hydrochlorothiazide)

Disponible sous forme de

Comprimés

Enalapril belongs to a class of medicines called Inhibiteurs de l'enzyme de conversion de l'angiotensine (ECA). You may have been prescribed it to reduce high blood pressure (hypertension), or to prevent (or treat) une insuffisance cardiaque. Heart failure is a condition where your heart does not work as well as it should.

ACE inhibitors like enalapril prevent your body from creating a hormone known as angiotensin II. They do this by blocking (inhibiting) a chemical called angiotensin-converting enzyme. This widens your blood vessels and helps to reduce the amount of water put back into your blood by your kidneys. These actions help to decrease blood pressure. Although people with high blood pressure often do not feel unwell, if left untreated, high blood pressure can harm the heart and damage blood vessels, leading to a heart attack or stroke. Enalapril can be used on its own or alongside other medicines which reduce blood pressure. A combination brand called Innozide® (which contains enalapril with another medicine called hydrochlorothiazide) can help to reduce the total number of tablets people with high blood pressure need to take each day.

In heart failure, there can be too much circulating fluid in your blood vessels because your heart is not working as efficiently as it once did. Enalapril helps to reduce this. It also appears to have a protective effect on the heart and slows the progression of the heart failure.

Before taking enalapril

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 enalapril it is important that your doctor knows:

  • Si vous êtes enceinte ou si vous allaitez.

  • Si vous avez des problèmes avec le fonctionnement de vos reins, ou des problèmes avec le fonctionnement de votre foie.

  • If you are lacking in fluid in the body (dehydrated) - for example, if you have had diarrhoea or sickness very recently.

  • If you have been told you have a build-up of fatty deposits on the walls of your arteries, a condition called atherosclerosis.

  • If you have a particular type of poor circulation called peripheral arterial disease.

  • If you have collagen vascular disease - this includes conditions such as systemic lupus erythematosus (SLE) and scleroderma.

  • If you have been told you have heart muscle disease (cardiomyopathy), or narrowing of the main blood vessel from your heart (aortic stenosis).

  • If you have ever had a reaction where your face, tongue or throat swells (angio-oedema).

  • If you are having desensitisation treatment to protect against bee and wasp stings.

  • If you are having dialysis treatment, or treatment to remove cholesterol from your blood by a machine (LDL apheresis).

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

  • If you have ever had an allergic or unusual reaction to any other ACE inhibitor (such as captopril, ramipril or perindopril), or to any other medicine.

How to take enalapril

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

  • Take the tablets exactly as your doctor tells you to.

  • If you are being treated for high blood pressure: enalapril is taken once a day. You will be advised to take your very first dose at bedtime. This is because you can feel quite dizzy when you first start taking it. After the first dose, you can generally take enalapril at a time of day you find easy to remember. For most people this will be in the morning.

  • If you are being treated for heart failure: your doctor will give you a small once-daily dose to begin with, and then your dose will be increased gradually over a few weeks. Once the dose has been increased, enalapril is commonly taken as two doses a day, one taken in the morning and the other in the evening. Increasing your dose slowly like this helps to avoid unwanted side-effects, such as dizziness.

  • Try to take your doses at the same time(s) of day each day as this will help you to remember to take your doses regularly. You can take enalapril tablets either with or without food. It is best to swallow the tablet with a drink of water.

  • There are several strengths of enalapril tablet. Your doctor will prescribe the strength which is suitable for your condition. Each time you collect a new supply, check to make sure the tablets are the strength that you are expecting.

  • If you forget to take a dose at your usual time, take it as soon as you remember (unless it is nearly time for your next dose, in which case do not take the forgotten dose but take the next dose when it is due). Do not take two doses together to make up for a missed dose.

Tirer le meilleur parti de votre traitement

  • Try to keep your regular appointments with your doctor. This is so your progress can be monitored. Your doctor will want you to have some blood tests from time to time to check that your kidneys are working well.

  • It is very important that you follow any dietary and lifestyle advice that you have been given by your doctor. This can include advice about eating a healthy diet, not smoking, and taking regular exercise.

  • If you buy any medicines, check with a pharmacist that they are suitable to take with enalapril. This is because some medicines (such as anti-inflammatory painkillers and indigestion remedies) can interfere with your treatment.

  • It is likely that your doctor will advise that you do not use salt substitutes while you are taking enalapril. These products have a high content of potassium which could be harmful for you.

  • If you drink alcohol, ask your doctor for advice about drinking alcohol while you are on enalapril. Alcoholic drinks can make you feel light-headed or dizzy, and they may not be advisable for you.

  • If you have diabetes you may need to check your blood glucose more frequently, as the tablets can lower the levels of sugar in your blood. Your doctor will advise you about this.

  • If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking enalapril. This is because some anaesthetics could cause your blood pressure to drop too low.

  • Treatment with enalapril is often long-term unless you experience an adverse effect. Continue to take the tablets unless you are advised otherwise.

Si vous prenez également de l'hydrochlorothiazide en combinaison avec ce médicament

  • Des études ont suggéré que prendre des doses plus élevées d'hydrochlorothiazide pendant de longues périodes pourrait augmenter le risque de certains cancers de la peau.

  • Dites à votre médecin si vous avez déjà été traité pour un cancer de la peau auparavant.

  • Informez votre médecin de tout grain de beauté nouveau ou modifié, ou de toute marque inquiétante sur votre peau.

  • Utilisez un écran solaire en cas de fort ensoleillement. N'utilisez pas de lits de bronzage.

Can enalapril cause problems?

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the more common ones associated with enalapril. The best place to find a full list of the side-effects which can be associated with your medicine, is from the manufacturer's printed information leaflet supplied with the medicine. Alternatively, you can find an example of a manufacturer's information leaflet in the reference section below. Speak with your doctor or pharmacist if any of the following continue or become troublesome.

Very common enalapril side-effects (these affect more than 1 in 10 people)

Que puis-je faire si je ressens cela ?

Dry irritating cough

If this continues, speak with your doctor, as a different type of medicine may be more suitable for you

Se sentir étourdi ou faible

Getting up more slowly should help. If you begin to feel dizzy, lie down so that you do not faint, then sit for a few moments before standing. If this continues beyond the first few days, speak with your doctor. Do not drive and do not use tools or machines while you feel dizzy

Blurred eyesight

Ne conduisez pas et n'utilisez pas d'outils ou de machines lorsque vous êtes affecté

Sensation de malaise (nausée)

Stick to simple foods - avoid fatty or spicy meals

Common enalapril side-effects (these affect fewer than 1 in 10 people)

Que puis-je faire si je ressens cela ?

Maux de tête

Buvez beaucoup d'eau et demandez à un pharmacien de vous recommander un antidouleur approprié. Si les maux de tête persistent, informez votre médecin

Tummy (abdominal) pain, diarrhoea

Stick to simple foods - avoid fatty or spicy meals

Low mood, feeling short of breath, taste disturbances, feeling faint, skin rash

Si l'un de ces éléments devient problématique, parlez-en à votre médecin

Modifications des résultats de certains tests sanguins

Votre médecin vérifiera cela

Important: if you experience any of the following potentially serious symptoms, stop taking enalapril and contact your doctor for advice straightaway:

  • Any difficulty breathing, or swelling of your face, mouth, tongue or throat. These are signs of an allergic reaction.

  • Any yellowing of your skin or the whites of your eyes. These may be signs of a liver problem called jaundice, which is a rare side-effect.

  • Une éruption cutanée sévère.

Si vous ressentez d'autres symptômes que vous pensez être dus aux comprimés, parlez-en à votre médecin ou à votre pharmacien pour obtenir des conseils supplémentaires.

How to store enalapril

  • 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

Informations importantes sur tous les médicaments

Ne prenez jamais plus que la dose prescrite. Si vous soupçonnez que vous ou quelqu'un d'autre avez pris une surdose de ce médicament, rendez-vous au service des urgences de votre hôpital local. Emportez 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 Site web de Yellow Card.

vérificateur de symptômes

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.

Questions fréquemment posées

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

If you miss a dose at your usual time, take it as soon as you remember. However, if it's almost time for your next scheduled dose, skip the forgotten dose and just take your next dose when it's due. Do not take a double dose to make up for the one you missed.

Can enalapril interact with other medicines I might be taking?

Yes, enalapril can interact with other medicines, including those you can buy without a prescription, as well as herbal and complementary medicines. Some medicines like anti-inflammatory painkillers and indigestion remedies can interfere with enalapril. Always check with a pharmacist if you're unsure if a medicine is suitable to take with enalapril.

Are there any dietary restrictions or lifestyle changes I should be aware of while taking enalapril?

Yes, it's very important to follow any dietary and lifestyle advice given by your doctor. This includes eating a healthy diet, not smoking, and exercising regularly. You will likely be advised not to use salt substitutes as they contain high levels of potassium, which could be harmful with enalapril. If you have diabetes, you might need to check your blood glucose more frequently as enalapril can lower blood sugar levels. Discuss alcohol consumption with your doctor, as it can cause light-headedness or dizziness.

What should I do if I'm scheduled for surgery or dental treatment?

If you are having an operation or dental treatment, you must inform the person carrying out the treatment that you are taking enalapril. This is because some anaesthetics could cause your blood pressure to drop too low.

How long will I need to take enalapril?

Treatment with enalapril is often long-term. You should continue to take the tablets unless your doctor advises you otherwise.

What are the signs of a serious allergic reaction to enalapril?

You should stop taking enalapril and contact your doctor immediately if you experience any difficulty breathing, or swelling of your face, mouth, tongue, or throat. These are signs of a severe allergic reaction.

Lectures complémentaires et références

À propos de l'auteurVoir la biographie complète

Image de l'auteur

Michael Stewart, MRPharmS

Responsable de l'examen des notices de médicaments – Contractuel, Pharmacien

BPharm (Hons), MRPharmS

Michael est un pharmacien communautaire exerçant dans les Midlands et le South Yorkshire avec plus de 20 ans d'expérience dans le conseil sur les médicaments et les conditions médicales. Il possède une solide expérience en formation dans le domaine de la santé, ayant produit et dispensé des cours de formation pour les équipes de pharmacie et le personnel des établissements de soins résidentiels, y compris les infirmières. Il a également contribué aux comités consultatifs de pharmacie pour la gestion des affections de faible gravité dans la communauté.

À propos du critique

Image de l'auteur

Sid Dajani

Sultan Dajani a obtenu son diplôme à la London School of Pharmacy en 1994 et est devenu le plus jeune membre élu du conseil de la Royal Pharmaceutical Society depuis sa fondation en 1842.

Historique de l'article

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

  • Prochaine révision prévue : 21 mars 2027
  • 23 oct. 2022 | Dernière version

    Dernière mise à jour par

    Michael Stewart, MRPharmS

    Revu par

    Sid Dajani
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