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Comprimés de cyclopenthiazide

Note de l'auteur clinique Michael Stewart 22/04/2019: Navidrex® and Navispare® tablets have been discontinued in the UK. At the time of review there are no branded or generic products containing cyclopenthiazide available in the UK. Cyclopenthiazide may still be available in other countries. This medicine leaflet is based on medical information available in the UK at the time of writing. Please also refer to the manufacturer's information supplied with your medicine.

Cyclopenthiazide is a 'water tablet' (a diuretic).

Il est préférable de le prendre le matin.

Any side-effects are usually mild, but may include feeling sick or dizzy.

En un coup d'œil

  • Cyclopenthiazide is a 'water tablet' (diuretic) used for high blood pressure, fluid retention, and heart failure.

  • It works by making your kidneys pass out more urine, reducing fluid and blood pressure.

  • Take your tablets once daily, usually in the morning, with or without food.

  • Attend regular doctor appointments for checks, including blood tests.

  • Inform your doctor if you experience constant thirst or a dry mouth, as this may indicate dehydration.

  • Common side-effects include feeling sick or dizzy when standing up.

About cyclopenthiazide

Type de médicament

A thiazide diuretic

Utilisé pour

High blood pressure; fluid retention; heart failure

Aussi appelé

Navidrex®, Navispare® (discontinued)

Disponible sous forme de

Comprimés

Cyclopenthiazide belongs to a group of medicines called thiazide diuretics. A diuretic is a medicine which increases the amount of urine that you pass out from your kidneys. They are often referred to as 'water tablets'. Diuretics are a common treatment for l'hypertension artérielle (hypertension). They are also used to clear excess fluid from your body in conditions where your body retains more than it needs. This is called œdème. Cyclopenthiazide is also useful in people who have une insuffisance cardiaque. Heart failure is a condition where your heart is not functioning as well as it should.

Diuretics like cyclopenthiazide work by interfering with the transport of salt and water across certain cells in your kidneys. The effect of this is to make your kidneys pass out more urine. The removal of fluid reduces your blood pressure and helps reduce the work your heart has to do.

Cyclopenthiazide is usually given alongside other diuretics to treat high blood pressure. When it is used like this, you may be prescribed a combination tablet, such as Navispare®. This brand contains cyclopenthiazide with amiloride. Combination tablets like this help to reduce the number of tablets you need to take each day.

Before taking cyclopenthiazide

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 cyclopenthiazide it is important that your doctor knows:

  • Si vous êtes enceinte ou si vous allaitez.

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

  • If you have gout, diabetes or an inflammatory condition called systemic lupus erythematosus (also called lupus, or SLE). These conditions can be made worse by medicines like cyclopenthiazide.

  • Si un médecin vous a informé que vous avez des niveaux faibles de sodium ou de potassium dans votre sang, ou des niveaux élevés de calcium dans votre sang.

  • If you have a problem with your adrenal glands, called Maladie d'Addison.

  • Si vous prenez ou utilisez 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 complémentaires.

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

How to take cyclopenthiazide

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

  • Take cyclopenthiazide tablets exactly as your doctor tells you to. The usual dose is ½-1 tablet daily. Your doctor is likely to recommend that you take your dose in the morning. This is so it works during the day and your sleep is not disturbed by you needing to get up to go to the toilet during the night.

  • Swallow the tablet with a drink of water. You can take it either with or without food.

  • If you forget to take a dose, take it as soon as you remember. However, if it is late afternoon when you remember, leave out the forgotten dose and take your next dose as usual on the following day. Do not take two doses on the same day to make up for a missed dose.

Tirer le meilleur parti de votre traitement

  • 'Water tablets' (diuretics) like cyclopenthiazide help you to lose water. Occasionally you may lose too much and become lacking in fluid in the body (dehydrated). Let your doctor know if you feel constantly thirsty, your mouth is dry, or your skin looks and feels dry.

  • Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. The salt balance in your bloodstream may be upset by cyclopenthiazide and your doctor may want you to have a blood test from time to time to check for this.

  • If you have been prescribed cyclopenthiazide for high blood pressure (hypertension), your treatment is likely to be long-term. Although many people with high blood pressure do not feel unwell, if left untreated, high blood pressure can harm your heart and damage your blood vessels. This damage may later result in a heart attack, stroke, or kidney problems, so it is important that you continue to take the tablets regularly to help reduce the risk of this. You may also be given some lifestyle and dietary advice by your doctor, such as stopping smoking, reducing the amount of salt in your diet, eating more fruit and vegetables and less saturated fat, and taking some regular exercise. Following this advice will also help to reduce the risk of damage to your heart and blood vessels.

  • Ask your doctor for advice before drinking alcohol while you are on cyclopenthiazide. Alcohol will add to the blood pressure-lowering effect of cyclopenthiazide which will increase the possibility of you experiencing side-effects such as dizziness.

  • If you buy any medicines, check with a pharmacist that they are suitable to take alongside cyclopenthiazide.

  • Si vous devez subir une opération ou un traitement dentaire, informez la personne qui effectue le traitement des médicaments que vous prenez.

Can cyclopenthiazide 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 most common ones associated with cyclopenthiazide. 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 cyclopenthiazide side-effects

Que puis-je faire si je ressens cela ?

Sensation de malaise (nausée), maux d'estomac

This is usually mild, but it may help to take cyclopenthiazide after food if you are not already doing so

Feeling dizzy, particularly when you stand up (due to low blood pressure)

Getting up more slowly should help. Do not drive and do not use tools or machines while affected

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 cyclopenthiazide

  • 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 immédiatement 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.

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Vérifiez les interactions possibles entre les médicaments, les compléments et les aliments avant de les prendre ensemble.

Questions fréquemment posées

Why is cyclopenthiazide sometimes prescribed with amiloride?

Cyclopenthiazide is usually given alongside other diuretics to enhance its effect, particularly for high blood pressure. When used in combination, like with amiloride in a tablet such as Navispare®, it helps to reduce the number of tablets you need to take each day. This specific combination can also help to balance the potential loss of certain salts caused by cyclopenthiazide.

What should I do if I become constantly thirsty or my mouth feels dry while taking cyclopenthiazide?

Cyclopenthiazide can help you lose excess water. However, if you feel constantly thirsty, your mouth is dry, or your skin looks and feels dry, these could be signs that you are losing too much fluid and becoming dehydrated. You should inform your doctor if you experience these symptoms.

Why do I need regular blood tests while taking cyclopenthiazide?

Cyclopenthiazide can affect the balance of salts in your bloodstream. Your doctor will want you to have blood tests from time to time to monitor these levels and ensure they remain balanced, checking on your progress with the medication.

What lifestyle changes can help manage my high blood pressure alongside cylopenthiazide?

To help manage high blood pressure, your doctor may suggest lifestyle and dietary changes in addition to cyclopenthiazide. These can include stopping smoking, reducing salt in your diet, eating more fruits and vegetables and less saturated fat, and getting regular exercise. These actions can help reduce the risk of harm to your heart and blood vessels.

Can cyclopenthiazide be taken with other medications I buy without a prescription?

Before taking cyclopenthiazide, it's important that your doctor knows about all other medicines you are taking, including those bought without a prescription, as well as herbal and complementary medicines. If you buy any new medicines, ask a pharmacist if they are suitable to take alongside cyclopenthiazide.

Lectures complémentaires et références

À propos de l'auteurVoir la biographie complète

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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

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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 : 31 mars 2028
  • 31 mars 2025 | Dernière version

    Dernière mise à jour par

    Michael Stewart, MRPharmS

    Revu par

    Sid Dajani
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