• Prescribed to treat High Blood Pressure (Hypertension)
  • Thiazide Diuretics, more commonly known as "water pills"
  • Treats the build up of fluid within blood vessels, effectively lowering blood pressure

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About Bendroflumethiazide
  1. What are Bendroflumethiazide tablets?

    Bendroflumethiazide is a medication that belongs to a class of drugs known as thiazide diuretics, more commonly referred to as 'water pills'. They are called water pills because they make you urinate more often.

    Diuretics are medicines that promote and increase the excretion of urine.

    You must have a prescription to buy Bendroflumethiazide. 

    What is Bendroflumethiazide used to treat?

    Bendroflumethiazide is commonly used to treat high blood pressure (hypertension).

    High blood pressure is caused by a wide range of issues, including a family history of high blood pressure, smoking, obesity, age, lack of exercise and high levels of salt in your diet.

    Certain health problems are also linked to it, including kidney disease and diabetes.

    Why is Bendroflumethiazide prescribed to treat high blood pressure?

    Clinical trials have shown that Bendroflumethiazide is a well-tolerated medicine that is effective at lowering blood pressure. If medicine is well-tolerated, it means you are unlikely to experience any serious side effects when taking it. 

    How does Bendroflumethiazide treat high blood pressure?

    Thiazide Diuretics like Bendroflumethiazide tend to work directly on the kidneys and causes them to pass out more fluid. Thiazide Diuretics inhibit sodium absorption and as a result, increases fluid loss in the urine, a process called diuresis.

    Taking water tablets like Bendroflumethiazide make you need to urinate more often, which helps to get rid of excess fluid in your body. This also means that you will have less fluid in your blood vessels and body tissues, which helps to lower your blood pressure.

    Thiazide Diuretics also have a dilating (widening) effect on the blood vessels which allows blood to flow through the circulatory system using less force from the heart.

    How long do Bendroflumethiazide tablets take to work?

    Bendroflumethiazide usually takes around 2 hours to start working. However, it may take between 3-6 hours before fluid is excreted from your body.

    Bendroflumethiazide can take 3-4 days to effectively lower your blood pressure. A single dose of Bendroflumethiazide will last for around 12 to 24 hours, which is why you should consistently take your tablets at a similar time every day.

    Can you buy Bendroflumethiazide over the counter?

    No, this is a prescription-only medicine (POM), so you cannot purchase it over the counter. 

    Can you buy Bendroflumethiazide online in the UK?

    You can buy Bendroflumethiazide 2mg and 5mg tablets online from most UK pharmacies. Bendroflumethiazide is a prescription-only medicine, so you will need to complete an online health consultation with a doctor or healthcare professional, this is so they are able to assess your condition and ensure that Bendroflumethiazide 2.5mg or 5mg tablets are the most suitable treatment option for your condition.

    Bendroflumethiazide alternatives

    There are many different types of Thiazide Diuretics that are available. If you are wanting to change to another treatment option similar to Bendroflumethiazide, please visit your own doctor as you will need to be physically assessed before being prescribed a different treatment.

    We are unable to prescribe an alternative to Bendroflumethiazide if your own doctor has not yet prescribed this for you.

  2. Bendroflumethiazide 2.5mg and 5mg tablets Indications and Dose

    The dose of Bendroflumethiazide you are prescribed will be heavily dependent on your condition, diagnosis, and the severity of your blood pressure.

    Typically, the initial starting dose for Bendroflumethiazide is:



    Oedema 5mg - 10mg once daily in the morning or on alternative days
    Hypertension 2.5mg once daily in the morning
    Source NICE

    All of our doctors and pharmacists follow NICE guidelines when prescribing Bendroflumethiazide.

    How to take Bendroflumethiazide

    You will normally be instructed to take Bendroflumethiazide once a day, in the morning.

    If your doctor prescribes Bendroflumethiazide to be taken twice a day, you should take it once in the morning and again around midday.

    To ensure this medicine's effectiveness, try to make sure you are taking Bendroflumethiazide at the same time(s) every day.

    Do not take thiazide diuretics after 4pm; this medicine will make you need to go to the toilet, which will require you to wake up in the middle of the night.

    Bendroflumethiazide tablets should be swallowed whole with a drink of water. They can be taken with or without food.

  3. Bendroflumethiazide Side Effects

    Common side effects of this medication include:

    • Feeling dizzy
    • Severe joint pain
    • Feeling faint
    • Feeling thirst with a dry mouth
    • Stomach pain
    • Loss of appetite
    • Diarrhoea
    • Constipation
    • Unexpected weight loss
    • Bladder or skin infection
    • Thrush
    • Blurred vision
    • Increased thirst

    Speak to your doctor if any of the above symptoms bother you or do not go away.

    The above list is not exhaustive. Always read the patient information leaflet thoroughly for a comprehensive list of possible Bendroflumethiazide side effects.

  4. Bendroflumethiazide Warnings and Drug Interactions

    Bendroflumethiazide tablets may interact with other medications, which can hinder their effectiveness. Thiazide diuretics can also increase the risk of developing gout.

    Before you start to take a new medicine, you should always tell your doctor if you are already taking any others. This includes both prescription and non-prescription medicines, herbal remedies, vitamins, and supplements.

    For a full list of Bendroflumethiazide drug interactions please visit Bendroflumethiazide drug interactions.

    Can I take Bendroflumethiazide during pregnancy?

    Bendroflumethiazide is not recommended for women who are pregnant, although your doctor may prescribe you this medication if they believe the pros of taking it outweigh the risks.

    Before taking Bendroflumethiazide, you should tell your doctor if you are either currently pregnant, think you might be pregnant or are trying to get pregnant.

    Can I take it if I am breastfeeding?

    It is also not recommended for women who are breastfeeding, as it can reduce the amount of breast milk a woman produces. Tell your doctor if you are breastfeeding, as they can discuss the risks and possible alternatives you can use.

    For more information on high blood pressure and pregnancy. 

    Can I drink alcohol while taking Bendroflumethiazide?

    You are advised to not drink alcohol while taking this medication. Alcohol may cause dizziness when you stand up, which is due to low blood pressure.

  5. Bendroflumethiazide Ingredients

    The main active ingredient within this medicine is: Bendroflumethiazide

    For a full list of the inactive ingredients, please read the Summary of Product Characteristics.

  6. How much does it cost to buy Bendroflumethiazide tablets online in the UK?

    Dosage Quantity Price (starting from)
    Bendroflumethiazide 2.5mg tablets 28 Tablets £12.99
    Bendroflumethiazide 5mg tablets 28 Tablets £13.99
  7. What is Bendroflumethiazide used to treat?

    Bendroflumethiazide is a thiazide diuretic that treats high blood pressure (hypertension) by removing excess fluid from your body.

    How long does bendroflumethiazide take to work?

    Bendroflumethiazide will begin to work within 2 hours of taking it. However, you will not notice a reduction in your blood pressure until 3 or 4 days into your course.

    How long will I need to take Bendroflumethiazide?

    High blood pressure requires a long term treatment plan. It is likely that you will need to take high blood pressure medicine for many years.

    Is Bendroflumethiazide safe to take for a long time?

    Yes, Bendroflumethiazide is intended for long term use. Taking this medicine for a long time does not cause any long-lasting side effects.

    What happens if I stop taking it?

    You should not stop taking your medicine without talking to your doctor first. Stopping taking your medicine can result in your blood pressure increasing. This is a long term treatment plan and should be taken exactly as prescribed.

    Is Bendroflumethiazide a type of beta-blocker?

    No, Bendroflumethiazide is a Thiazide Diuretic which prevents water retention in the body. Beta-blockers control the rate at which the heart beats. Both can be used to treat high blood pressure, however both work in different ways.

    When should I take my tablets?

    Do not take Bendroflumethiazide after 4pm, as this will make you need the toilet during the night. It is best to take your prescribed dose at the same time every day.

    Can I drink alcohol whilst taking Bendroflumethiazide?

    Drinking alcohol whilst taking Bendroflumethiazide can increase the blood pressure-lowering effects and cause you to feel lightheaded or dizzy. Alcohol can also directly increase your blood pressure. When drinking alcohol, it is best to do so in moderation.

    What is the price of Bendroflumethiazide in the UK?

    Prices start at £12.99 for 28 tablets.

Written byHussain Abdeh MPharm: 2211840

Published on: 12/10/2020

Updated on: 24/06/2021

This content has been written by our Superintendent Pharmacist Hussain Abdeh and has been medically reviewed by our Pharmacist Sonia Khan

Hussain Abdeh Superintendent Pharmacist at Medicine Direct

Hussain Abdeh
MPharm: 2211840

Pharmacist Independent Prescriber

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