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Amiloride tablets and liquid medicine

Amiloride is a 'water' tablet (diuretic).

It will make you go to the toilet more often to pass urine.

Any side-effects are usually mild.

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 amiloride. It may be available on its own in other countries. For more information see 'Getting the most from your treatment' below or view the MHRA Alert.

At a glance

  • Amiloride is a 'water tablet' (diuretic) used to treat water retention and high blood pressure.

  • It increases urine production but does not cause the body to lose potassium.

  • Take amiloride as directed by your doctor, usually in the morning.

  • Avoid 'salt substitutes' as they can increase potassium levels in your body.

  • Contact your doctor if you become very thirsty or have dry skin, as your dose may need adjusting.

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About amiloride

Typ av medicin

A potassium-sparing diuretic

Används för

Water retention (oedema); high blood pressure

Även kallad

Combination tablets: Co-amilozide (amiloride with hydrochlorothiazide), co-amilofruse (amiloride with furosemide), amiloride with bumetanide;

Tillgänglig som

Tabletter och flytande medicin för oral användning

Amiloride belongs to the group of medicines known as potassium-sparing 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. Amiloride is called a potassium-sparing diuretic because, unlike some other diuretics, it does not cause your body to lose potassium. It is used to treat high blood pressure (hypertension) and also water retention (oedema).

Oedema occurs when fluid leaks out of your blood vessels, causing swelling in the tissues of your lungs, feet or ankles. This makes you feel breathless and your legs feel puffy. It is commonly caused by heart failure or liver disease. Amiloride prevents the build-up of this fluid by increasing the amount of urine your kidneys produce.

Amiloride can be prescribed as a treatment on its own, or alongside other diuretics. When it is used with other diuretics, it can be prescribed as a combination tablet to help cut down on the number of tablets you need to take each day. Combination tablets include co-amilozide (amiloride with hydrochlorothiazide) and co-amilofruse (amiloride with furosemide).

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 amiloride it is important that your doctor knows:

  • Om du är gravid eller ammar.

  • If you have any problems with the way your kidneys work, or if you have any difficulties passing urine.

  • If you have diabetes.

  • If you have been told by a doctor that you have high levels of potassium in your blood.

  • If you have a problem with your adrenal glands, called Addisons sjukdom.

  • Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.

  • Om du någonsin har haft en allergisk reaktion mot en medicin.

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

  • Take amiloride exactly as your doctor tells you to. Your doctor will ask you to take one dose, or possibly two doses, a day. The directions for taking your doses will be printed on the label of the pack to remind you about what the doctor said to you.

  • Amiloride is best taken in the morning. This is because you will find you may need to go to the toilet a couple of times after taking it and this will disturb your sleep if you take it too late in the day. If you have been prescribed more than one dose a day, make sure you take your last dose no later than 6 pm.

  • You can take amiloride either before or after meals.

  • If you forget to take a dose of amiloride, take it when you remember unless it is late in the day. If it is after 6 pm in the evening, leave out the missed dose completely and take your next dose when it is due on the following day. Do not take two doses at the same time to make up for a missed dose.

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

  • Diuretics help you to lose water, so you can breathe and move more easily. If, however, you lose too much fluid, you may become lacking in fluid in the body (dehydrated). This will make you feel thirsty and make your skin look and feel dry. Let your doctor know if this happens, as your dose may need to be adjusted.

  • Because amiloride is a potassium-conserving diuretic, you should try to avoid things with a high potassium content, such as 'salt substitutes'. This is so the level of potassium in your body does not become too high.

  • Treatment with diuretics is usually long-term, so continue to take amiloride unless your doctor advises you otherwise.

  • If you buy any medicines 'over the counter', please check with a pharmacist that they are suitable for you to take alongside your prescribed medicines.

If you are also taking hydrochlorothiazide in combination with this medicine

  • Studies have suggested that taking higher doses of hydrochlorothiazide for long periods of time may increase the risk of certain skin cancers.

  • Tell your doctor if you have ever been treated for skin cancer before.

  • Tell your doctor about any new or changed moles or worrying marks on your skin.

  • Use a sunscreen in strong sunlight. Do not use sunbeds.

Fortsätt läsa nedan

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the ones associated with amiloride. 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.

Amiloride side-effects

Vad kan jag göra om jag upplever detta?

Stomach upset, stomach ache

Håll dig till enkla måltider - undvik rik eller kryddstark mat

Torr mun

Försök tugga sockerfritt tuggummi eller suga på sockerfria karameller

Feeling dizzy or faint especially when getting up

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 minutes before you stand

Muscle cramps, aches or pains, eyesight problems, a ringing in your ears (tinnitus), headache, skin rash, and feeling tired

If any of these become troublesome, tell your doctor

Changes to the results of some blood tests

Your doctor may check for these from time to time

If you experience any other symptoms which you think may be due to the medicine, please speak with your doctor or pharmacist for further advice.

  • Förvara alla läkemedel utom räckhåll och synhåll för barn.

  • Förvara på en sval, torr plats, borta från direkt värme och ljus.

Viktig information om alla läkemedel

Ta aldrig mer än den föreskrivna dosen. Om du misstänker att du eller någon annan kan ha tagit en överdos av denna medicin, gå till akutmottagningen på ditt lokala sjukhus. Ta med behållaren, även om den är tom.

Denna medicin är för dig. Ge den aldrig till andra människor även om deras tillstånd verkar vara detsamma som ditt.

If you are due to have an operation or any dental treatment, please tell the person carrying out the treatment which medicines you are taking.

Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.

Om du har några frågor om denna medicin, fråga din apotekare.

Rapportera biverkningar av ett läkemedel eller vaccin

Om du upplever biverkningar kan du rapportera dem online via Yellow Card website.

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Vanliga frågor

What is the main difference between amiloride and other diuretics?

Amiloride is known as a potassium-sparing diuretic. This means that, unlike some other diuretics often called 'water' tablets, amiloride helps your body get rid of excess fluid without causing you to lose potassium. This is important because maintaining the right potassium levels in your body is crucial for your health.

Why would my doctor want me to have blood tests while taking amiloride?

Your doctor may ask you to have blood tests periodically because amiloride can affect the balance of salts in your blood. These tests help ensure that your body's salt levels, particularly potassium, remain within a healthy range, as both too little and too much potassium can be problematic.

I feel very thirsty and my skin is dry. Is this normal when taking amiloride?

Amiloride works by helping your body lose water. If you lose too much fluid, you might become dehydrated, which can make you feel thirsty and cause your skin to look and feel dry. If you experience these symptoms, you should let your doctor know, as your dose of amiloride might need to be adjusted.

Are there any specific foods or products I should avoid while on amiloride?

Yes, because amiloride is a potassium-sparing diuretic, you should try to avoid products with a high potassium content, such as 'salt substitutes'. This precaution helps prevent the level of potassium in your body from becoming too high, which can be harmful.

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

If you forget a dose, take it as soon as you remember, unless it's already late in the day. If it's after 6 pm, you should skip the missed dose completely and take your next dose at its usual time the following day. Never take a double dose to make up for one you missed.

Can I take amiloride at any time of day?

Amiloride is best taken in the morning. This is because it increases the amount of urine you produce, and taking it earlier in the day helps prevent your sleep from being disturbed by needing to go to the toilet frequently. If you take more than one dose daily, ensure your last dose is no later than 6 pm.

What should I do if I'm taking amiloride and start feeling dizzy or faint?

If you start to feel dizzy or faint, getting up slowly can often help. If you feel dizzy, it's best to lie down to prevent fainting, and then sit for a few minutes before standing up again. If these symptoms continue or become troublesome, you should tell your doctor or pharmacist.

Vidare läsning och referenser

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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.

Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.

  • Next review due: 16 Dec 2027
  • 16 Dec 2024 | Senaste versionen

    Senast uppdaterad av

    Michael Stewart, MRPharmS

    Granskad av

    Sid Dajani
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