pack of the blood pressure medication bendroflumethiazide

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Bendroflumethiazide

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Bendroflumethiazide is a diuretic used to treat high blood pressure.

Our fast and safe online doctor service takes the hassle out of obtaining your repeat prescriptions. To place your order, fill in our short medical questionnaire. One of our UK based doctors will review your answers and confirm whether it is safe for you to continue your treatment with Bendroflumethiazide tablets. 

Please note that our service is only suitable for patients who have been taking Bendroflumethiazide for at least three months and whose blood pressure is well controlled. 
2.5mg tablets - 3 month £19.99
2.5mg tablets - 6 month £24.99
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Prices include prescription and delivery.

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Delivery options

Delivery method Cost Estimated delivery

You will choose your delivery option at the checkout. Delivery options may vary depending on the pack size and dosage chosen.

About Bendroflumethiazide

What is Bendroflumethiazide?

Bendroflumethiazide is a thiazide diuretic. This type of medication is also referred to as water tablets, as it reduces the amount of fluid your body retains. By making you pass more urine, water tablets remove fluid from your body, which lowers your blood pressure and makes it less strenuous for your heart to pump your blood through your body. When used to treat hypertension, Bendroflumethiazide tablets are often combined with other medications, such as beta blockers.

How are Bendroflumethiazide tablets taken?

When you are first prescribed Bendroflumethiazide, your GP will explain how often you have to take your tablets. It is important that you follow your doctor’s advice carefully and that you attend regular check-ups to monitor your blood pressure. Usually, Bendroflumethiazide is taken in the morning, to avoid frequent urination at night. Swallow your tablets whole with a drink of water.

Your doctor will decide which dosage is best for you. The usual Bendroflumethiazide dosage for the treatment of blood pressure is 2.5mg per day. Which exact dosage you require depends on your blood pressure, how you respond to the treatment and which other medications you are taking. Combination medications such as Prestim contain Bendroflumethiazide as well as a beta blocker, reducing the amount of tablets you need to take in a day. Elderly patients and patients with impaired kidney function may be prescribed a lower dosage. Please note, product packaging may differ from the image above.

During long term treatment with Bendroflumethiazide, your doctor may carry out blood or urine tests to monitor your blood levels of certain chemicals as well as your kidney function.

Will Bendroflumethiazide affect my ability to drive and use machinery?


Some patients experience spells of dizziness while taking Bendroflumethiazide tablets. Make sure this does not apply to you before driving a car or working with machinery, especially if you have just begun your treatment. If the side effect of dizziness persists, speak to your doctor who may need to adjust your medication.

Who can not take Bendroflumethiazide?

Bendroflumethiazide tablets are not suitable for you if:

  • you are allergic to any ingredients
  • have severely impaired kidney or liver function
  • high blood levels of calcium
  • low blood levels of potassium
  • low blood levels of sodium
  • have or have had gout
  • have addison’s disease

Tell your doctor before taking Bendroflumethiazide if:

  • your kidney or liver function is mildly impaired
  • you suffer from liver disease caused by alcohol abuse
  • have diabetes
  • suffer from a condition called systemic lupus erythematosus
  • suffer from an inherited blood disorder which causes skin blisters, abdominal pain and disorders affecting the nervous system
Bendroflumethiazide is not to be taken during pregnancy or while breastfeeding.

Side Effects of Bendroflumethiazide

Bendroflumethiazide Side Effects

Bendroflumethiazide causes side effects in some patients.

Allergic reactions to Bendroflumethiazide can cause:

  • skin rashes
  • viral infections of the lungs
  • sensitivity to sunlight
  • fluid in the lungs

Bendroflumethiazide can cause changes to your blood, which may show in blood tests.

Changes in the composition of your blood can cause:

  • increased bruising
  • sore throats
  • nosebleeds
  • infections
  • tiredness
  • breathlessness
  • pale skin

Tell your doctor if you notice any of the following side effects:

  • worsening of existing diabetes
  • decreased tolerance to carbohydrates
  • increased blood levels of uric acid
  • worsening of gout
  • changes in your blood fat levels
  • increased frequency and amount of urination
  • feeling ill
  • muscle weakness and cramps
  • dizziness
  • loss of appetite
  • feeling or being sick
  • diarrhoea
  • constipation
  • inability to maintain an erection
  • dizziness

For a complete list of Bendroflumethiazide Side Effects, read the patient leaflet supplied with your medication.

Drug Interactions

Bendroflumethiazide can interact with other medication. Tell your doctor about any remedies, prescription and non-prescription medication you are taking (or have currently taken) before you begin your treatment with Bendroflumethiazide.

It is particularly important that you mention if you are taking:

  • medication to treat gout
  • calcium salts
  • calcium channel blockers
  • medicines to treat an irregular heartbeat
  • antidepressants
  • medication to control blood sugar levels
  • antipsychotic medication
  • medication to control epilepsy
  • antifungal medications
  • prazosin (used to treat high blood pressure and a range of other conditions)
  • ACE inhibitors or angiotensin II inhibitors (high blood pressure medicines)
  • moxisylyte (a drug used to treat urinary problems)
  • corticosteroids (anti-inflammatory medicine)
  • sympathomimetics used to treat asthma and other medical conditions
  • theophylline (used to treat asthma)
  • carbenoxolone (used to treat ulcers)
  • treatments for cancer
  • medication used to treat heart problems
  • medication to treat Cushing’s syndrome (a syndrome caused by high levels of cortisol in the body)
  • vitamin D
  • muscle relaxants
  • non steroidal anti-inflammatory drugs (for example ibuprofen, ketorolac, piroxicam or naproxen
  • a combined contraceptive pill or other medication containing oestrogen