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Tabletas de ciclopentiazida

Clinical author's note 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).

Es mejor tomarlo por la mañana.

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

De un vistazo

  • 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

Tipo de medicamento

A thiazide diuretic

Usado para

High blood pressure; fluid retention; heart failure

También llamado

Navidrex®, Navispare® (discontinued)

Disponible como

Comprimidos

Cyclopenthiazide belongs to a group of medicines called diuréticos tiazídicos. 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 presión arterial alta (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 edema. Cyclopenthiazide is also useful in people who have insuficiencia cardíaca. 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 estás embarazada o amamantando.

  • Si tienes algún problema con el funcionamiento de tu hígado, o algún problema con el funcionamiento de tus riñones.

  • 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 médico le ha dicho que tiene niveles bajos de sodio o potasio en la sangre, o niveles altos de calcio en la sangre.

  • If you have a problem with your adrenal glands, called Enfermedad de Addison.

  • Si está tomando o usando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que esté disponible para comprar sin receta, así como medicamentos herbales y complementarios.

  • Si alguna vez has tenido una reacción alérgica a un medicamento.

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.

Obteniendo el máximo de tu tratamiento

  • '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 tienes programada una operación o cualquier tratamiento dental, informa a la persona que realizará el tratamiento sobre los medicamentos que estás tomando.

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

¿Qué puedo hacer si experimento esto?

Sensación de malestar (náuseas), malestar estomacal

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

Sentirse mareado, especialmente al ponerse de pie (debido a la baja presión arterial)

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

Si experimenta cualquier otro síntoma que crea que puede deberse a las tabletas, hable con su médico o farmacéutico para obtener más consejos.

How to store cyclopenthiazide

  • Mantenga todos los medicamentos fuera del alcance y la vista de los niños.

  • Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.

Información importante sobre todos los medicamentos

Información importante sobre todos los medicamentos

Nunca tome más de la dosis prescrita. Si sospecha que usted u otra persona podría haber tomado una sobredosis de este medicamento, acuda de inmediato al departamento de accidentes y emergencias de su hospital local. Lleve el envase con usted, incluso si está vacío.

Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.

No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, que se encargará de desecharlos por ti.

Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.

Informar efectos secundarios de un medicamento o vacuna

Si experimenta efectos secundarios, puede reportarlos en línea a través de Sitio web de Yellow Card.

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Preguntas frecuentes

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.

Lecturas adicionales y referencias

Sobre el autorVer biografía completa

Imagen del autor

Michael Stewart, MRPharmS

Gerente de Revisión de Folletos de Medicamentos – Contratista, Farmacéutico

BPharm (Hons), MRPharmS

Michael es un farmacéutico comunitario que ejerce en Midlands y South Yorkshire con más de 20 años de experiencia asesorando sobre medicamentos y condiciones médicas. Tiene una sólida formación en capacitación en atención médica, habiendo producido e impartido cursos de formación para equipos de farmacia y personal de entornos de atención residencial, incluidas enfermeras. También ha contribuido a juntas asesoras de farmacia para la gestión de condiciones de baja gravedad en la comunidad.

Acerca del revisor

Imagen del autor

Sid Dajani

Sultan Dajani se graduó en la Escuela de Farmacia de Londres en 1994 y se convirtió en el miembro más joven elegido para el consejo de la Sociedad Real de Farmacia desde su fundación en 1842.

Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.

  • Next review due: 31 Mar 2028
  • 31 Mar 2025 | Última versión

    Última actualización por

    Michael Stewart, MRPharmS

    Revisado por pares por

    Sid Dajani
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